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LISTEN: Laura Diaz on how social and environmental stress impact children’s health

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Wednesday, October 23, 2024

Laura Diaz joins the Agents of Change in Environmental Justice podcast to discuss the intersection of social and environmental stressors on children’s health.Diaz, a current fellow and a Ph.D. student in Environmental Health Sciences at UC Berkeley, also talks about how her own childhood shaped her understanding of environmental injustice, and how being a mother has shaped her research – and her life.The Agents of Change in Environmental Justice podcast is a biweekly podcast featuring the stories and big ideas from past and present fellows, as well as others in the field. You can see all of the past episodes here.Listen below to our discussion with Diaz and subscribe to the podcast at iTunes or Spotify. Agents of Change in Environmental Justice · Laura Diaz on how social and environmental stress impact children’s healthTranscriptBrian BienkowskiLaura, how are you doing today?Laura Diaz I'm doing okay. How are youBrian Bienkowski I'm doing great. And where are you today?Laura Diaz I am in South San Francisco, which is close to the San Francisco International Airport.Brian Bienkowski Very cool. I love it out there. And you are from originally not far from there. So tell me a little bit about growing up in Northern California.Laura Diaz Yeah, so I grew up in the East San Francisco Bay Area, and specifically, it's like the geographic location where the watershed from the Sierra mountains meets the mouth of the San Francisco Bay, and it's beautiful. And just behind where the Bay is, there's these rolling golden hills. And because of the history that Pittsburgh has, which is my hometown, with the fossil fuel industry, and specifically during the Gold Rush, they were actually mining coal out there that laid the foundation for a polluting industry which persists today, and it's become one of the more affordable places in the San Francisco Bay area to live. And so I lived in between this corridor of polluting industry, right along that water, which included the Dow Chemical Plant, the power plant and several other toxic release facilities. And then on the other side of us was a highly trafficked freeway. And then we lived there until it was about four and then shortly after, we moved just over that same freeway, and the freeway was like legit our neighbors and the that whole corridor polluting industry was still an eye shot of where we lived. And those cities are largely known as commuter cities because they're so affordable. A lot of families move out there to raise their family, and that was true for my parents as well. So they commuted about an hour and a half, and so a lot of our childhood was spent largely unsupervised, and at some point, my parents decided to get us an inter-district transfer to the city where they worked. And so they worked in a city called wanna Creek, California, and that city is predominantly white and home to the uber rich. And I remember like, being at school and just feeling like I really didn't, like fit in. And it went beyond that, like kind of normal, like what I see with my son, where he's, like, trying to make friends and stuff. It went beyond that, like something just didn't fit. And I remember like, walking home from school, and I would have to walk through this outdoor plaza with stores like Neiman Marcus and Tiffany's and make my way to my dad's tailoring shop. And like, I remember opening the door, and I would get this like sense of relief, and I would feel like I could breathe again. And it was like home, and yet, I would see my dad on his hands and knees fixing the clothing of my classmates parents. And then every day we would take our trek back home. So we'd be going from this very affluent space, it was very green, a lot of open space back home, to this space where it's a lot of concrete, like again, we'd see, like, that whole polluting industry, and yet, like, I'd hop out of the car super excited, run to my neighbor's house and we'd be playing basketball for the rest of the evening. I have, like, so much love for where I grew up, and I feel like my work now is like. Of letter to my community, and I had this like daily reminder of the difference between wealth and poverty, between predominantly white communities and predominantly diverse communities.Brian Bienkowski Well, that's a really beautiful way to paint your hometown. I have to say, when I first looked it up, I was like, I did not know Laura was from Pittsburgh. When I met her, she seemed like she was from the West Coast, so I did not know that there was a Pittsburgh California. But thank you so much for painting that picture. And you, you know, you've mentioned this kind of industrial backdrop and maybe some social dynamics and racial dynamics at school that were uncomfortable. I'm wondering where along the way you became aware or interested in kind of the concept of environmental justice and injustice?Laura Diaz Yeah. So, I mean, like those, like, big smokes stacks, like, what we see in pictures a lot when we see, like, read articles about environmental justice, like, that was the backdrop to my childhood. And yet, I had no idea that that, that I grew up in an environmental justice community, right? So I am a former high school science and math teacher, and there was a summer where I did a professional development program in the topic of sustainability. It had it was there that I met Karna Wong, and she's a faculty at Sonoma State University, and she absolutely changed my life. She gave a workshop on environmental justice, and she taught us about the principles of environmental justice, various frameworks of EJ and her and I, like, hit it off like it was, it was great. This is why I love, like, professional development programs, which we can talk about later. But she also showed me this database called CalEnviroScreen, and that is, it's basically a map of California, and it displays community exposures to pollution, health burdens and demographic characteristics. And that was the first time that I saw my community in bright red, because bright red means more burdens. And then I saw Walnut Creek bright green, and bright green is associated with less burdens, or under-burden. And it just was like this final puzzle piece of like, like, whoa, everything came together. And I like, understood that that feeling of like something wasn't right made so much sense by looking at that map, and I realized that environmental justice wasn't only something I like, loved learning about, it also impacted my life. I don't know, and I'm never going to know, if growing up in close proximity to these facilities is a reason why I have two chronic autoimmune diseases, but it does drive my work. And I think also, in addition to that, there was another educator fellowship that I was on, and I did that with Earthwatch. We were out at catalea Island, and we were studying Harmful Algal Blooms. And while we were out there, my mom called me, and she was like, I made it out, but paradise is on fire. And that was in 2018 and although she made it out alive, 85 folks did not, and that was the campfire. And over 13,000 homes were lost in one of those of my mom's and it's like, it's hard to talk about this, but it's like, because it's so deeply personal, right? But I remember flying home from that experience and waiting outside of the airport and it was raining ash, and those ashes included my mom's home. So it's just the impacts of climate justice, and environmental justice has hit me, personally, very hard, and I think more recently, I've been really thinking about the connection between wildfires in California, the fossil fuel industry and our inability to transition away fast enough, and how my community is going to continue to pay the price until we do so. And that really drives the work that I do. And like you can hear my voice shaking, but it's like I have so much passion to you, and it's so important. There's, there's an urgency to this work that's needed that I'm I'm not quite sensing enough in the academic spheres that I'm in now, but I hope to be a part of that driving force.Brian Bienkowski And I've been asking everybody this question before we get into some of your your research and your education, what is a moment or event that has helped shape your identity?Laura Diaz Yeah, okay, I think there's a couple I feel like we're getting into, like, the intense stuff in the beginning. So like, Sorry my voice is shaking, but also self-deprecating humor is how I get. So, I think the first thing that really, really impacted like who I am and how I moved through this world, was when I was in ninth grade, my dad and I had to go to the county courthouse, and it was the first time that I saw my brother handcuffed. And we were there to see him and be there for him while he was going to be sentenced for his first felony. And I remember the judge asked his family to stand up those, those of us who were there in support. And I was bawling as my I was seeing my hero like out there behind a glass wall in handcuffs, and I was like, barely could stand up, and I was just tears were just rolling down my face, and, like, for the longest time, I thought it was actually my fault that he got sentenced, because I couldn't keep it together, right? It was just I was I must have been around 13, right? a kid. And I think during my adolescence, I really developed this, like, strong understanding of the impact of oppression on the lives of children, and it really is the root of how I move through the work that I do. And I think also kind of on a more tender side, a moment that really has shaped who I am, is being my son's mom, and the day I became his mom was the most beautiful day of my life. And I tell him often how lucky I am to be his mom, and I like to say that my most proudest title is being soccer mom. And I do know too that like the most important thing I can do, personally and professionally is invest in my son and my family.Brian Bienkowski Awesome. Well, thank you so much for both of those very we will get you away from these, all of these that are pulling at your emotions. Maybe we'll circle back and we'll get emotional again, but thank you so much for opening up about that. I'm sure there are others who can relate. And when you talk about tears streaming down, I was hoping my my blue light glasses were hiding we're hiding mine on that so, so let's change gears a little bit. And you went to so you mentioned Sonoma State University, which is now recognized as a Hispanic serving institution, and you went there for your undergraduate degree. So we've had folks on talking about going to historically Black colleges and kind of the impact that had on them and a level of comfort and that it brought them. So I was wondering if you could talk about that experience and how going to a Hispanic Serving Institution benefited you?Laura Diaz Yeah, I, I remember the first week being on campus and like, being overwhelmed with this, like, sense of hope. And I think, and it was great, like I felt like, you're saying, I just felt like safe, that that uncomfortable, like unwelcoming feeling that I felt when I was going to schools in Walnut Creek was like gone. And I knew that I was believed in and supported by by the faculty. The commitment to teaching excellence at HSIs is so high, and that's really impacted my teaching philosophy now, and I understand firsthand what it means like to create a vulnerable learning environment and what it means to like not be in one, right? And because I was able to really thrive in this space, I majored in Molecular Cell bio. I double minored in Chem and in music. I was part of the chamber music orchestra, like I was, like, loving life. It was great. And also, my junior year, it started getting sick, and I was having to walk to school with a cane, and I ended up getting diagnosed with lupus, and during that diagnosis period that was really difficult. And despite that, I knew that the faculty were there for me. I knew my classmates were there for me, and they really helped me push through a really, really difficult time for me. And so I just, I feel very committed to what education means, what that means for social mobility, and that's stayed with me. And continue, I continue to work and partner with Sonoma State, which is, yeah, really great.Brian Bienkowski Yeah, what a great opportunity. Do you still play music?Laura Diaz I don't, but I need to. I played the piano. Oh,Brian Bienkowski no, no, that's that was my next question. That's very cool. Yeah, I am a musician. I play a whole variety of instruments. And I've said on the podcast before that it just it feels like it is that other side of the brain. It just feels so good to take some time to stretch the create creative legs every now and then, after staring at a computer for so long. So I'm always curious.Laura Diaz Yeah, I hear that, and hopefully this inspires me to, like, get it together,Brian Bienkowski get back to it. Yeah. Well, I'm sure you have as we're gonna get into it sounds like we have plenty going on, but I hope you find some time. So now you are studying air pollution, specifically particulate matter burdes in marginalized communities. So particulate matter is linked to negative health outcomes, and one of them that you focus on is mitochondrial dysfunction. So can you explain first, what mitochondria are and how air pollution may affect them?Laura Diaz So mitochondria are these fascinating little organelles that I've been spending several years thinking about. They're the site of chemical energy production of our cells, so they make the energy that our cells need in order to actually function properly. And they're really unique. So they have their own DNA or their own genome, and in that, within that, it codes for 13 proteins which are vital for the mitochondria to be functioning properly. And what's interesting about that is that they they lack these protective mechanisms that, like our nuclear DNA has, and so it makes them particularly vulnerable to situations where our cells are undergoing stress, and we see that mitochondrial function declines with aging and also with disease. And what I spend a lot of time thinking about is what mitochondrial function or dysfunction looks like in epithelial cells. And those are the cell types that we find in the lining of our mouth. They're in our lungs, and there's like outer barrier of our skin, so they come in contact with this, like wild outer world, and play this really important protective mechanism, and they they play a big role in detoxification. And so what happens when they're exposed to particulate matter? There's actually an increase in free radicals in our in the cell, and those are called reactive oxygen species, and those, if there's too many and there's an imbalance, those can cause mitochondrial dysfunction, and that's what I'm spending a lot of time thinking about.Brian Bienkowski So if these mitochondria are disrupted in some way by and I should say particulate matter is fine particulate pollution. This can come from anything from wildfires to traffic to to heavy industry, fossil fuel burning, if the mitochondria are disrupted, what kind of impact may that have on, let's say, developing children?Laura Diaz Yeah, so I, my research focuses on child health, and again, I'm really thinking about these epithelial cells and what's happening in relation to the exposure of, like, what you're saying with particulate matter and and when we see that mitochondrial dysfunction, it actually triggers a cascade of events to happen in the cell. So the cell tries to fix these problems when they come up, but when it's constantly having to fix these problems, that's when, that's when, like, long-term issues can can arise. And so what we see is that the this outer lining of cells can be really impacted by mitochondrial dysfunction, because they they get put in this like pro-inflammatory state, and so then they become really vulnerable to things like allergens. So what I'm studying, then, is, is that mitochondrial dysfunction playing a role in the development of diseases like eczema or rhinitis or asthma among children in frontline environmental justice communities.Brian Bienkowski So as part of this, you're also looking at adverse childhood experience known as ACES, which was a new acronym for me after I met you at the retreat. That was something I didn't know about. So in addition to the air pollution and mitochondrial dysfunction, you're looking at aces. So can you explain aces and why you feel it's an important part of including in this research,Laura Diaz ACES stands for Adverse Childhood eEperiences. In California, there's a lot of work being done on the public health end of things, and it's getting labeled as toxic stress. What it is is it's a survey with 10 questions that assesses a child's exposure to abuse, neglect and household challenges. And back in the 90s, there was a groundbreaking study that was done, and they found that exposure to ACES was associated with increased risk of death from seven out of 10 of the leading causes of death and so and there's been a lot more work done now, but I really want to invite us all in, like environmental health work and environmental justice, to be thinking about day to day stress, and that exposure to stress as an environmental exposure, just like we would think about particulate matter. And in order to understand the impact of oppression and the health impacts living in frontline communities, I think it's really important that we also include exposure to stress. And what I've found in my research is that exposure to ACES is associated with an increase in mitochondrial dysfunction and so, and I'm seeing that among a cohort of children, right? So it like the changes that becomes embodied in our cells happens pretty quickly. It can at least.Brian Bienkowski So you're seeing that not only. So if there are these environmental insults, and then you pile on kind of just day to day stress in a child's life, whether that's from inside or outside of the home, the combination of those, they're both doing bad things at the cellular level, to the kid or to a child, and setting them up for potential increased illness.Laura Diaz Yeah, and I think, like, I'm really thinking about the mitochondria a lot, obviously, but if we think about being in a state of stress, where we're in this, like fight or flight, like our physiological response, our cells have an increased need of energy, and when that happens over and over and over again, then the mitochondria is being overworked. And so understanding what's happening at the cellular level is also really important.Brian Bienkowski v really fascinating research. And I love the idea of thinking more about stress, and of course, with your research with kids, but even for adults. I mean, I think stress is such a kind of a silent killer. I mean, it just, it's so bad for our body, and yet, a lot of us kind of live with it, and it's part of our, part of our life, so it's really important to to remember that. So I'm wondering, what are some of the next steps in this research? What would you like to do? What are you going to do? What are you working on?Laura Diaz Yeah, I think, like, I mean, I hope I can spend more time studying the mitochondria. I think, as is true for like, most folks in graduate school, really figuring out, like, where is my niche? Like, where is my lane? Like, I do hope that I get to spend quite a bit more time really deep diving into the mitochondria. Specifically, I'm really curious about what is happening and what other biomarkers are associated with this mitochondrial dysfunction, and also like mitochondrial mutations, which are pretty interesting to think about as well. So I'm kind of following, like what's happening in a molecular mechanism level.Brian Bienkowski Do you like doing research?Laura Diaz Yeah, I love it. Oh, I love it. Even, like and, and when I shouldn't say even, and when I was teaching, like, research was a big part of of my teaching practice with high schoolers. I have, I think this is like something that has been passed on from, from my family, for sure, but in my is just this love for learning and not being afraid of of kind of the unknown. Yeah.Brian Bienkowski So you mentioned earlier this kind of idea of being really interested in kind of professional development, and I know outside of your research, you're also, you're doing some other things, and you've you founded a nonprofit, the Educator Collective for Environmental Justice. So I was wondering if you could just tell us about that organization and why you started it?Laura Diaz Yeah, so when I met Karna Wong who, like, blew my mind about environmental justice and and really started supporting me on my journey through, like, integrating environmental justice in the classroom, I literally started writing curriculum for my class that evening, and I knew that there was a gap in environmental justice curriculum and training for educators at that time, and I was chosen to be a Science Friday educator collaborator, where I was able to actually publish my EJ curriculum, which was really cool. And I started getting invited to give conferences or talks at conferences, and I gave a talk at a climate solutions conference, and that's where I met Samra Pathania, who's also a high school teacher, and he is just as passionate about decarbonization and climate solutions. And so we spent that whole conference just like talking together and visioning together, like how we could create a space for professional development and like, almost like a grassroots movement building for educators around these topics of environmental justice and climate solutions. Because, just like, I have that really, like urgent sense to, like do something now, he's similar with decarbonization. And so originally, we started as a home for Educator professional development for again, EJ and climate solutions. And we actually grew really quickly, which was really cool and supported, started supporting youth. So we had a youth collective, which now we have two Youth Environmental Justice councils that we support. We have a cohort of educators that that we support in EJ and climate solutions and decarbonization. And then we also partner with communities. So we've given workshops to communities like building DIY indoor air filters and giving them like educational workshops around environmental justice. We partnered with promotoras and doing, like, some air pollution monitoring. So it's been this, like, really beautiful little space that that is is growing and thriving.Brian Bienkowski Excellent. And speaking of being too busy to play piano, you also co-founded the Partners for Equity and Research, which supports undergraduates doing community engaged research. So can you also talk about this, maybe a project or two that you've worked on there, and how you work to center community voices and experiences in that initiative?Laura Diaz Yeah, so maybe I could describe a little bit of like, our structure. It's a little bit like, yeah, has some moving pieces, but we are an environmental justice hub that's housed at Sonoma State University, and I co-lead that with Professor Daniel Soto, who's a department chair of Geography, Environment and Planning, and we train undergraduate researchers in community-driven research methods. So I like to think of it as a triangle, the way our partnership works. So we have the university and Dr. Soto's really important. Like, kind of the lead there. He's able to recruit the students at Sonoma State. And then there I, like, I'm another point wearing my nonprofit hat, and then we have our community partners, and they are the North Bay Organizing Project, and the Latinx Student Congress, and our partner there is Manny Morales, and we, with his hope, he recruits students from the Latinx Student Congress, And we have a running Latinx Youth Environmental Justice Council, so they get to come on campus, and Dr. Soto and I train the undergrads to, like, lead these workshops in environmental justice and community health. And it's really amazing. And again, like a lot of the students that we're recruiting, most are Latinx, if not most are first gen and then Dr Soto and I are both Latinx, and we're serving, I think it's 100% Latinx youth EJ council with a Latinx partner. And most of these kids come from a predominantly Latinx frontline EJ community. So it's just like, it's such a beautiful space. And Dr Sota, and I really spent a lot of time thinking about reimagining the academy as a public good, like, how do we make the university a space that actually serves the community? And I think speaking about HSI or Hispanic serving institutions, they are so primed to do that because of who we are, right? And there's a there's trust that's kind of baked in, and just our identity right, apart from, like, our ethics really driving building trust with our partners. And we've been using education as a tool for community deliberation so that we can support these youth as they fight for cleaner air and a more just environment. And so things that we've worked on, and so I think, like that piece of it is, like, more important, almost in like, the stuff that they get to do, because we put in all this work to build this partnership, and now we get to just follow their lead, the youth lead. It's beautiful. And so we've done things like, we've given them air monitors. They get to go out and like, monitor the air and like that data is theirs. And then we teach them the research methods of how to clean that data. So it truly is like a practice of data sovereignty. Like that data is theirs. It does not get pushed out to the cloud. It's on an SD card, and they get to decide what they do with it. And we have a couple other projects, like in the works, but it's been a really like healing practice in some of the environmental justice work I'm privileged to do.Brian Bienkowski Well, I bet some of the participants would agree, and the idea of reimagining the academy to be a public good is what you said. And like that is a pretty simple statement, but it's like pretty radical, if you think about the ways universities and institutions have operated for century, over a century. And it's a pretty radical concept, so good on you for for being part of that change. And does this how beautiful to have you speak about Sonoma State University as being pivotal at one point in your life, and now you are, you are one of those people that's that's providing a space for others. So just that full circle is really cool to hear about.Laura Diaz Yeah, it's been, it's been pretty special.Brian Bienkowski Yeah, for sure. And so you mentioned that you are a mother, so we have had, we actually had a podcast with a couple senior fellows where they discuss being researchers and mothers and how things change them, and it was just one of my favorite podcasts that we've done when I turned the microphone over to them, and I'm wondering just how it has it does has it done the same for you? Has it changed how you've thought about or conducted your research?Laura Diaz Yeah, so I came into grad school already being a mom, and so there are ways that it has impacted how I engage in research, for sure, and I think a really, a really, kind of important component of of the work that we do with at Sonoma State, with P4ER. We're also supporting undergraduate students who are also parents, and creating a space where the student parent feels like their whole self is welcome is incredibly important to some of the things that we do. And so there's like, I often bring my son to our workshops, because I know that if I do, then the students can also bring their kids. And so we're really trying to create an atmosphere where motherhood is welcomed, where it's embraced and it's also encouraged. And I think another like piece of being my son's mom that has really impacted me in research, which I feel like this is, again, I'm like, I love education, but that, I think, is a piece that we don't talk about enough in research, is the role that education or knowledge sharing plays in the process of knowledge production. And so if we do research well, but we don't do teaching well, we aren't pushing the edges of that new knowledge enough. And in research, we get to ask new questions, and we get to present that to new learners who have a different worldview than those of us who are asking those questions, so they can write like during the moment research is being done actually impact that research to be a more like to have a fuller angle to it. And so I just, I think about that a lot, because my son is in third grade and just seeing how he's learning and all that stuff. I think, I think a lot about the role of holistic learning and how that can play a big role in healthy development of of children and and research.Brian Bienkowski And I'm wondering if there are things that you tips you have, or things that you do to decompress, to cope, to make sure that you're doing okay.Laura Diaz I'm a dancer, so I'm a salcera, and I dance with a salsa Maria Dance Company in Oakland. Shout out to my dance family. That is a space where I have to shut my brain off, and it's like you were talking about, like music. I think I've been kind of able to get away with not playing piano for so long, because I've been really intensely dancing and so having, like, an artistic expression for my body has been really important. So like, I that that plays a big role in my own ability to kind of sustain we have work that's justice centered. And the cool thing about that too is that, like, they also really embrace like family. So like, my son will come and and, like, sit and watch practices, which he, like loves doing, which is super cool, because I remember being kid and going to my dad's soccer games and like that being a really like, it actually is, like, a big health promotion piece of my life, right, seeing my parents be active. Um, but anyways, so yeah, dance.Brian Bienkowski I think that's a good point too. Like having your children. See, I'm a big fan. I don't have kids. We are, we are child-free, but I have nieces and nephews, and I think it's so important for kids to see their parents as human beings. Like, yes, mom works hard and does research and but mom also dances like that. I don't know, to me, there's something cool about kids seeing their parents as whole human beings. So Laura, before we get to some of the fun questions and get you out of here, what are you optimistic about?Laura Diaz this summer, we came off of doing a summer institute for educators, and being able to be in community with educators who are these incredible like, they're the heart of a lot of of their community, like, of their school communities, and the impact that they have on on the kids that they get to teach, like, really does provide a lot of hope for me. And I think, like also being able to partner with youth and seeing just how they're such a raw reflection of society, how they're like, not fully yet assimilated into our social hierarchies. And when they see something that's wrong, like, they call it outright then and there, right? And they're like, dude, let's do something about it. And like, that is the energy that we need in this space, and it's such a privilege to work in partnership to their own EJ activism.Brian Bienkowski Awesome. Well, what a beautiful note to end on. So I have three rapid fire questions where you can just answer with one word or a phrase. My dream vacation isLaura Diaz Mexico City.Brian Bienkowski I feel most creative when I'mLaura Diaz Dancing salsaBrian Bienkowski if I could have dinner with one person, it would beLaura Diaz Leslie Jones.Brian Bienkowski Tell me about Leslie Jones?Laura Diaz Oh, she's someone I really look up to. She also has a brother who struggled and like seeing the way her autobiography. Is amazing, by the way, but just like the way that she's chosen to like, be strong and push through that and also be authentic and be raw and be herself, is something that I like. I hope that I bring in all the spaces that I have the privilege to navigate through.Brian Bienkowski Well, you've certainly brought it to the space today. And I don't know if it's if it's her autobiography or not, but what is the last book you read for fun?Laura Diaz I read In the Dream House, which is also an autobiography by Carmen Maria Machado. It's really beautiful. I read a lot. So I also read hood. Just finished reading Hood Feminism, which is an amazing book by Mickey Kendall, and it like talks about how feminism needs to prioritize the hood bipoc woman's experience. It's amazing.Brian Bienkowski But Laura, it has been so wonderful to have you on today. I'm so glad you're in this program and to be introduced to your work and your mind and the things that you're thinking about. So thank you so much.Laura Diaz Yeah, thank you so much.

Laura Diaz joins the Agents of Change in Environmental Justice podcast to discuss the intersection of social and environmental stressors on children’s health.Diaz, a current fellow and a Ph.D. student in Environmental Health Sciences at UC Berkeley, also talks about how her own childhood shaped her understanding of environmental injustice, and how being a mother has shaped her research – and her life.The Agents of Change in Environmental Justice podcast is a biweekly podcast featuring the stories and big ideas from past and present fellows, as well as others in the field. You can see all of the past episodes here.Listen below to our discussion with Diaz and subscribe to the podcast at iTunes or Spotify. Agents of Change in Environmental Justice · Laura Diaz on how social and environmental stress impact children’s healthTranscriptBrian BienkowskiLaura, how are you doing today?Laura Diaz I'm doing okay. How are youBrian Bienkowski I'm doing great. And where are you today?Laura Diaz I am in South San Francisco, which is close to the San Francisco International Airport.Brian Bienkowski Very cool. I love it out there. And you are from originally not far from there. So tell me a little bit about growing up in Northern California.Laura Diaz Yeah, so I grew up in the East San Francisco Bay Area, and specifically, it's like the geographic location where the watershed from the Sierra mountains meets the mouth of the San Francisco Bay, and it's beautiful. And just behind where the Bay is, there's these rolling golden hills. And because of the history that Pittsburgh has, which is my hometown, with the fossil fuel industry, and specifically during the Gold Rush, they were actually mining coal out there that laid the foundation for a polluting industry which persists today, and it's become one of the more affordable places in the San Francisco Bay area to live. And so I lived in between this corridor of polluting industry, right along that water, which included the Dow Chemical Plant, the power plant and several other toxic release facilities. And then on the other side of us was a highly trafficked freeway. And then we lived there until it was about four and then shortly after, we moved just over that same freeway, and the freeway was like legit our neighbors and the that whole corridor polluting industry was still an eye shot of where we lived. And those cities are largely known as commuter cities because they're so affordable. A lot of families move out there to raise their family, and that was true for my parents as well. So they commuted about an hour and a half, and so a lot of our childhood was spent largely unsupervised, and at some point, my parents decided to get us an inter-district transfer to the city where they worked. And so they worked in a city called wanna Creek, California, and that city is predominantly white and home to the uber rich. And I remember like, being at school and just feeling like I really didn't, like fit in. And it went beyond that, like kind of normal, like what I see with my son, where he's, like, trying to make friends and stuff. It went beyond that, like something just didn't fit. And I remember like, walking home from school, and I would have to walk through this outdoor plaza with stores like Neiman Marcus and Tiffany's and make my way to my dad's tailoring shop. And like, I remember opening the door, and I would get this like sense of relief, and I would feel like I could breathe again. And it was like home, and yet, I would see my dad on his hands and knees fixing the clothing of my classmates parents. And then every day we would take our trek back home. So we'd be going from this very affluent space, it was very green, a lot of open space back home, to this space where it's a lot of concrete, like again, we'd see, like, that whole polluting industry, and yet, like, I'd hop out of the car super excited, run to my neighbor's house and we'd be playing basketball for the rest of the evening. I have, like, so much love for where I grew up, and I feel like my work now is like. Of letter to my community, and I had this like daily reminder of the difference between wealth and poverty, between predominantly white communities and predominantly diverse communities.Brian Bienkowski Well, that's a really beautiful way to paint your hometown. I have to say, when I first looked it up, I was like, I did not know Laura was from Pittsburgh. When I met her, she seemed like she was from the West Coast, so I did not know that there was a Pittsburgh California. But thank you so much for painting that picture. And you, you know, you've mentioned this kind of industrial backdrop and maybe some social dynamics and racial dynamics at school that were uncomfortable. I'm wondering where along the way you became aware or interested in kind of the concept of environmental justice and injustice?Laura Diaz Yeah. So, I mean, like those, like, big smokes stacks, like, what we see in pictures a lot when we see, like, read articles about environmental justice, like, that was the backdrop to my childhood. And yet, I had no idea that that, that I grew up in an environmental justice community, right? So I am a former high school science and math teacher, and there was a summer where I did a professional development program in the topic of sustainability. It had it was there that I met Karna Wong, and she's a faculty at Sonoma State University, and she absolutely changed my life. She gave a workshop on environmental justice, and she taught us about the principles of environmental justice, various frameworks of EJ and her and I, like, hit it off like it was, it was great. This is why I love, like, professional development programs, which we can talk about later. But she also showed me this database called CalEnviroScreen, and that is, it's basically a map of California, and it displays community exposures to pollution, health burdens and demographic characteristics. And that was the first time that I saw my community in bright red, because bright red means more burdens. And then I saw Walnut Creek bright green, and bright green is associated with less burdens, or under-burden. And it just was like this final puzzle piece of like, like, whoa, everything came together. And I like, understood that that feeling of like something wasn't right made so much sense by looking at that map, and I realized that environmental justice wasn't only something I like, loved learning about, it also impacted my life. I don't know, and I'm never going to know, if growing up in close proximity to these facilities is a reason why I have two chronic autoimmune diseases, but it does drive my work. And I think also, in addition to that, there was another educator fellowship that I was on, and I did that with Earthwatch. We were out at catalea Island, and we were studying Harmful Algal Blooms. And while we were out there, my mom called me, and she was like, I made it out, but paradise is on fire. And that was in 2018 and although she made it out alive, 85 folks did not, and that was the campfire. And over 13,000 homes were lost in one of those of my mom's and it's like, it's hard to talk about this, but it's like, because it's so deeply personal, right? But I remember flying home from that experience and waiting outside of the airport and it was raining ash, and those ashes included my mom's home. So it's just the impacts of climate justice, and environmental justice has hit me, personally, very hard, and I think more recently, I've been really thinking about the connection between wildfires in California, the fossil fuel industry and our inability to transition away fast enough, and how my community is going to continue to pay the price until we do so. And that really drives the work that I do. And like you can hear my voice shaking, but it's like I have so much passion to you, and it's so important. There's, there's an urgency to this work that's needed that I'm I'm not quite sensing enough in the academic spheres that I'm in now, but I hope to be a part of that driving force.Brian Bienkowski And I've been asking everybody this question before we get into some of your your research and your education, what is a moment or event that has helped shape your identity?Laura Diaz Yeah, okay, I think there's a couple I feel like we're getting into, like, the intense stuff in the beginning. So like, Sorry my voice is shaking, but also self-deprecating humor is how I get. So, I think the first thing that really, really impacted like who I am and how I moved through this world, was when I was in ninth grade, my dad and I had to go to the county courthouse, and it was the first time that I saw my brother handcuffed. And we were there to see him and be there for him while he was going to be sentenced for his first felony. And I remember the judge asked his family to stand up those, those of us who were there in support. And I was bawling as my I was seeing my hero like out there behind a glass wall in handcuffs, and I was like, barely could stand up, and I was just tears were just rolling down my face, and, like, for the longest time, I thought it was actually my fault that he got sentenced, because I couldn't keep it together, right? It was just I was I must have been around 13, right? a kid. And I think during my adolescence, I really developed this, like, strong understanding of the impact of oppression on the lives of children, and it really is the root of how I move through the work that I do. And I think also kind of on a more tender side, a moment that really has shaped who I am, is being my son's mom, and the day I became his mom was the most beautiful day of my life. And I tell him often how lucky I am to be his mom, and I like to say that my most proudest title is being soccer mom. And I do know too that like the most important thing I can do, personally and professionally is invest in my son and my family.Brian Bienkowski Awesome. Well, thank you so much for both of those very we will get you away from these, all of these that are pulling at your emotions. Maybe we'll circle back and we'll get emotional again, but thank you so much for opening up about that. I'm sure there are others who can relate. And when you talk about tears streaming down, I was hoping my my blue light glasses were hiding we're hiding mine on that so, so let's change gears a little bit. And you went to so you mentioned Sonoma State University, which is now recognized as a Hispanic serving institution, and you went there for your undergraduate degree. So we've had folks on talking about going to historically Black colleges and kind of the impact that had on them and a level of comfort and that it brought them. So I was wondering if you could talk about that experience and how going to a Hispanic Serving Institution benefited you?Laura Diaz Yeah, I, I remember the first week being on campus and like, being overwhelmed with this, like, sense of hope. And I think, and it was great, like I felt like, you're saying, I just felt like safe, that that uncomfortable, like unwelcoming feeling that I felt when I was going to schools in Walnut Creek was like gone. And I knew that I was believed in and supported by by the faculty. The commitment to teaching excellence at HSIs is so high, and that's really impacted my teaching philosophy now, and I understand firsthand what it means like to create a vulnerable learning environment and what it means to like not be in one, right? And because I was able to really thrive in this space, I majored in Molecular Cell bio. I double minored in Chem and in music. I was part of the chamber music orchestra, like I was, like, loving life. It was great. And also, my junior year, it started getting sick, and I was having to walk to school with a cane, and I ended up getting diagnosed with lupus, and during that diagnosis period that was really difficult. And despite that, I knew that the faculty were there for me. I knew my classmates were there for me, and they really helped me push through a really, really difficult time for me. And so I just, I feel very committed to what education means, what that means for social mobility, and that's stayed with me. And continue, I continue to work and partner with Sonoma State, which is, yeah, really great.Brian Bienkowski Yeah, what a great opportunity. Do you still play music?Laura Diaz I don't, but I need to. I played the piano. Oh,Brian Bienkowski no, no, that's that was my next question. That's very cool. Yeah, I am a musician. I play a whole variety of instruments. And I've said on the podcast before that it just it feels like it is that other side of the brain. It just feels so good to take some time to stretch the create creative legs every now and then, after staring at a computer for so long. So I'm always curious.Laura Diaz Yeah, I hear that, and hopefully this inspires me to, like, get it together,Brian Bienkowski get back to it. Yeah. Well, I'm sure you have as we're gonna get into it sounds like we have plenty going on, but I hope you find some time. So now you are studying air pollution, specifically particulate matter burdes in marginalized communities. So particulate matter is linked to negative health outcomes, and one of them that you focus on is mitochondrial dysfunction. So can you explain first, what mitochondria are and how air pollution may affect them?Laura Diaz So mitochondria are these fascinating little organelles that I've been spending several years thinking about. They're the site of chemical energy production of our cells, so they make the energy that our cells need in order to actually function properly. And they're really unique. So they have their own DNA or their own genome, and in that, within that, it codes for 13 proteins which are vital for the mitochondria to be functioning properly. And what's interesting about that is that they they lack these protective mechanisms that, like our nuclear DNA has, and so it makes them particularly vulnerable to situations where our cells are undergoing stress, and we see that mitochondrial function declines with aging and also with disease. And what I spend a lot of time thinking about is what mitochondrial function or dysfunction looks like in epithelial cells. And those are the cell types that we find in the lining of our mouth. They're in our lungs, and there's like outer barrier of our skin, so they come in contact with this, like wild outer world, and play this really important protective mechanism, and they they play a big role in detoxification. And so what happens when they're exposed to particulate matter? There's actually an increase in free radicals in our in the cell, and those are called reactive oxygen species, and those, if there's too many and there's an imbalance, those can cause mitochondrial dysfunction, and that's what I'm spending a lot of time thinking about.Brian Bienkowski So if these mitochondria are disrupted in some way by and I should say particulate matter is fine particulate pollution. This can come from anything from wildfires to traffic to to heavy industry, fossil fuel burning, if the mitochondria are disrupted, what kind of impact may that have on, let's say, developing children?Laura Diaz Yeah, so I, my research focuses on child health, and again, I'm really thinking about these epithelial cells and what's happening in relation to the exposure of, like, what you're saying with particulate matter and and when we see that mitochondrial dysfunction, it actually triggers a cascade of events to happen in the cell. So the cell tries to fix these problems when they come up, but when it's constantly having to fix these problems, that's when, that's when, like, long-term issues can can arise. And so what we see is that the this outer lining of cells can be really impacted by mitochondrial dysfunction, because they they get put in this like pro-inflammatory state, and so then they become really vulnerable to things like allergens. So what I'm studying, then, is, is that mitochondrial dysfunction playing a role in the development of diseases like eczema or rhinitis or asthma among children in frontline environmental justice communities.Brian Bienkowski So as part of this, you're also looking at adverse childhood experience known as ACES, which was a new acronym for me after I met you at the retreat. That was something I didn't know about. So in addition to the air pollution and mitochondrial dysfunction, you're looking at aces. So can you explain aces and why you feel it's an important part of including in this research,Laura Diaz ACES stands for Adverse Childhood eEperiences. In California, there's a lot of work being done on the public health end of things, and it's getting labeled as toxic stress. What it is is it's a survey with 10 questions that assesses a child's exposure to abuse, neglect and household challenges. And back in the 90s, there was a groundbreaking study that was done, and they found that exposure to ACES was associated with increased risk of death from seven out of 10 of the leading causes of death and so and there's been a lot more work done now, but I really want to invite us all in, like environmental health work and environmental justice, to be thinking about day to day stress, and that exposure to stress as an environmental exposure, just like we would think about particulate matter. And in order to understand the impact of oppression and the health impacts living in frontline communities, I think it's really important that we also include exposure to stress. And what I've found in my research is that exposure to ACES is associated with an increase in mitochondrial dysfunction and so, and I'm seeing that among a cohort of children, right? So it like the changes that becomes embodied in our cells happens pretty quickly. It can at least.Brian Bienkowski So you're seeing that not only. So if there are these environmental insults, and then you pile on kind of just day to day stress in a child's life, whether that's from inside or outside of the home, the combination of those, they're both doing bad things at the cellular level, to the kid or to a child, and setting them up for potential increased illness.Laura Diaz Yeah, and I think, like, I'm really thinking about the mitochondria a lot, obviously, but if we think about being in a state of stress, where we're in this, like fight or flight, like our physiological response, our cells have an increased need of energy, and when that happens over and over and over again, then the mitochondria is being overworked. And so understanding what's happening at the cellular level is also really important.Brian Bienkowski v really fascinating research. And I love the idea of thinking more about stress, and of course, with your research with kids, but even for adults. I mean, I think stress is such a kind of a silent killer. I mean, it just, it's so bad for our body, and yet, a lot of us kind of live with it, and it's part of our, part of our life, so it's really important to to remember that. So I'm wondering, what are some of the next steps in this research? What would you like to do? What are you going to do? What are you working on?Laura Diaz Yeah, I think, like, I mean, I hope I can spend more time studying the mitochondria. I think, as is true for like, most folks in graduate school, really figuring out, like, where is my niche? Like, where is my lane? Like, I do hope that I get to spend quite a bit more time really deep diving into the mitochondria. Specifically, I'm really curious about what is happening and what other biomarkers are associated with this mitochondrial dysfunction, and also like mitochondrial mutations, which are pretty interesting to think about as well. So I'm kind of following, like what's happening in a molecular mechanism level.Brian Bienkowski Do you like doing research?Laura Diaz Yeah, I love it. Oh, I love it. Even, like and, and when I shouldn't say even, and when I was teaching, like, research was a big part of of my teaching practice with high schoolers. I have, I think this is like something that has been passed on from, from my family, for sure, but in my is just this love for learning and not being afraid of of kind of the unknown. Yeah.Brian Bienkowski So you mentioned earlier this kind of idea of being really interested in kind of professional development, and I know outside of your research, you're also, you're doing some other things, and you've you founded a nonprofit, the Educator Collective for Environmental Justice. So I was wondering if you could just tell us about that organization and why you started it?Laura Diaz Yeah, so when I met Karna Wong who, like, blew my mind about environmental justice and and really started supporting me on my journey through, like, integrating environmental justice in the classroom, I literally started writing curriculum for my class that evening, and I knew that there was a gap in environmental justice curriculum and training for educators at that time, and I was chosen to be a Science Friday educator collaborator, where I was able to actually publish my EJ curriculum, which was really cool. And I started getting invited to give conferences or talks at conferences, and I gave a talk at a climate solutions conference, and that's where I met Samra Pathania, who's also a high school teacher, and he is just as passionate about decarbonization and climate solutions. And so we spent that whole conference just like talking together and visioning together, like how we could create a space for professional development and like, almost like a grassroots movement building for educators around these topics of environmental justice and climate solutions. Because, just like, I have that really, like urgent sense to, like do something now, he's similar with decarbonization. And so originally, we started as a home for Educator professional development for again, EJ and climate solutions. And we actually grew really quickly, which was really cool and supported, started supporting youth. So we had a youth collective, which now we have two Youth Environmental Justice councils that we support. We have a cohort of educators that that we support in EJ and climate solutions and decarbonization. And then we also partner with communities. So we've given workshops to communities like building DIY indoor air filters and giving them like educational workshops around environmental justice. We partnered with promotoras and doing, like, some air pollution monitoring. So it's been this, like, really beautiful little space that that is is growing and thriving.Brian Bienkowski Excellent. And speaking of being too busy to play piano, you also co-founded the Partners for Equity and Research, which supports undergraduates doing community engaged research. So can you also talk about this, maybe a project or two that you've worked on there, and how you work to center community voices and experiences in that initiative?Laura Diaz Yeah, so maybe I could describe a little bit of like, our structure. It's a little bit like, yeah, has some moving pieces, but we are an environmental justice hub that's housed at Sonoma State University, and I co-lead that with Professor Daniel Soto, who's a department chair of Geography, Environment and Planning, and we train undergraduate researchers in community-driven research methods. So I like to think of it as a triangle, the way our partnership works. So we have the university and Dr. Soto's really important. Like, kind of the lead there. He's able to recruit the students at Sonoma State. And then there I, like, I'm another point wearing my nonprofit hat, and then we have our community partners, and they are the North Bay Organizing Project, and the Latinx Student Congress, and our partner there is Manny Morales, and we, with his hope, he recruits students from the Latinx Student Congress, And we have a running Latinx Youth Environmental Justice Council, so they get to come on campus, and Dr. Soto and I train the undergrads to, like, lead these workshops in environmental justice and community health. And it's really amazing. And again, like a lot of the students that we're recruiting, most are Latinx, if not most are first gen and then Dr Soto and I are both Latinx, and we're serving, I think it's 100% Latinx youth EJ council with a Latinx partner. And most of these kids come from a predominantly Latinx frontline EJ community. So it's just like, it's such a beautiful space. And Dr Sota, and I really spent a lot of time thinking about reimagining the academy as a public good, like, how do we make the university a space that actually serves the community? And I think speaking about HSI or Hispanic serving institutions, they are so primed to do that because of who we are, right? And there's a there's trust that's kind of baked in, and just our identity right, apart from, like, our ethics really driving building trust with our partners. And we've been using education as a tool for community deliberation so that we can support these youth as they fight for cleaner air and a more just environment. And so things that we've worked on, and so I think, like that piece of it is, like, more important, almost in like, the stuff that they get to do, because we put in all this work to build this partnership, and now we get to just follow their lead, the youth lead. It's beautiful. And so we've done things like, we've given them air monitors. They get to go out and like, monitor the air and like that data is theirs. And then we teach them the research methods of how to clean that data. So it truly is like a practice of data sovereignty. Like that data is theirs. It does not get pushed out to the cloud. It's on an SD card, and they get to decide what they do with it. And we have a couple other projects, like in the works, but it's been a really like healing practice in some of the environmental justice work I'm privileged to do.Brian Bienkowski Well, I bet some of the participants would agree, and the idea of reimagining the academy to be a public good is what you said. And like that is a pretty simple statement, but it's like pretty radical, if you think about the ways universities and institutions have operated for century, over a century. And it's a pretty radical concept, so good on you for for being part of that change. And does this how beautiful to have you speak about Sonoma State University as being pivotal at one point in your life, and now you are, you are one of those people that's that's providing a space for others. So just that full circle is really cool to hear about.Laura Diaz Yeah, it's been, it's been pretty special.Brian Bienkowski Yeah, for sure. And so you mentioned that you are a mother, so we have had, we actually had a podcast with a couple senior fellows where they discuss being researchers and mothers and how things change them, and it was just one of my favorite podcasts that we've done when I turned the microphone over to them, and I'm wondering just how it has it does has it done the same for you? Has it changed how you've thought about or conducted your research?Laura Diaz Yeah, so I came into grad school already being a mom, and so there are ways that it has impacted how I engage in research, for sure, and I think a really, a really, kind of important component of of the work that we do with at Sonoma State, with P4ER. We're also supporting undergraduate students who are also parents, and creating a space where the student parent feels like their whole self is welcome is incredibly important to some of the things that we do. And so there's like, I often bring my son to our workshops, because I know that if I do, then the students can also bring their kids. And so we're really trying to create an atmosphere where motherhood is welcomed, where it's embraced and it's also encouraged. And I think another like piece of being my son's mom that has really impacted me in research, which I feel like this is, again, I'm like, I love education, but that, I think, is a piece that we don't talk about enough in research, is the role that education or knowledge sharing plays in the process of knowledge production. And so if we do research well, but we don't do teaching well, we aren't pushing the edges of that new knowledge enough. And in research, we get to ask new questions, and we get to present that to new learners who have a different worldview than those of us who are asking those questions, so they can write like during the moment research is being done actually impact that research to be a more like to have a fuller angle to it. And so I just, I think about that a lot, because my son is in third grade and just seeing how he's learning and all that stuff. I think, I think a lot about the role of holistic learning and how that can play a big role in healthy development of of children and and research.Brian Bienkowski And I'm wondering if there are things that you tips you have, or things that you do to decompress, to cope, to make sure that you're doing okay.Laura Diaz I'm a dancer, so I'm a salcera, and I dance with a salsa Maria Dance Company in Oakland. Shout out to my dance family. That is a space where I have to shut my brain off, and it's like you were talking about, like music. I think I've been kind of able to get away with not playing piano for so long, because I've been really intensely dancing and so having, like, an artistic expression for my body has been really important. So like, I that that plays a big role in my own ability to kind of sustain we have work that's justice centered. And the cool thing about that too is that, like, they also really embrace like family. So like, my son will come and and, like, sit and watch practices, which he, like loves doing, which is super cool, because I remember being kid and going to my dad's soccer games and like that being a really like, it actually is, like, a big health promotion piece of my life, right, seeing my parents be active. Um, but anyways, so yeah, dance.Brian Bienkowski I think that's a good point too. Like having your children. See, I'm a big fan. I don't have kids. We are, we are child-free, but I have nieces and nephews, and I think it's so important for kids to see their parents as human beings. Like, yes, mom works hard and does research and but mom also dances like that. I don't know, to me, there's something cool about kids seeing their parents as whole human beings. So Laura, before we get to some of the fun questions and get you out of here, what are you optimistic about?Laura Diaz this summer, we came off of doing a summer institute for educators, and being able to be in community with educators who are these incredible like, they're the heart of a lot of of their community, like, of their school communities, and the impact that they have on on the kids that they get to teach, like, really does provide a lot of hope for me. And I think, like also being able to partner with youth and seeing just how they're such a raw reflection of society, how they're like, not fully yet assimilated into our social hierarchies. And when they see something that's wrong, like, they call it outright then and there, right? And they're like, dude, let's do something about it. And like, that is the energy that we need in this space, and it's such a privilege to work in partnership to their own EJ activism.Brian Bienkowski Awesome. Well, what a beautiful note to end on. So I have three rapid fire questions where you can just answer with one word or a phrase. My dream vacation isLaura Diaz Mexico City.Brian Bienkowski I feel most creative when I'mLaura Diaz Dancing salsaBrian Bienkowski if I could have dinner with one person, it would beLaura Diaz Leslie Jones.Brian Bienkowski Tell me about Leslie Jones?Laura Diaz Oh, she's someone I really look up to. She also has a brother who struggled and like seeing the way her autobiography. Is amazing, by the way, but just like the way that she's chosen to like, be strong and push through that and also be authentic and be raw and be herself, is something that I like. I hope that I bring in all the spaces that I have the privilege to navigate through.Brian Bienkowski Well, you've certainly brought it to the space today. And I don't know if it's if it's her autobiography or not, but what is the last book you read for fun?Laura Diaz I read In the Dream House, which is also an autobiography by Carmen Maria Machado. It's really beautiful. I read a lot. So I also read hood. Just finished reading Hood Feminism, which is an amazing book by Mickey Kendall, and it like talks about how feminism needs to prioritize the hood bipoc woman's experience. It's amazing.Brian Bienkowski But Laura, it has been so wonderful to have you on today. I'm so glad you're in this program and to be introduced to your work and your mind and the things that you're thinking about. So thank you so much.Laura Diaz Yeah, thank you so much.



Laura Diaz joins the Agents of Change in Environmental Justice podcast to discuss the intersection of social and environmental stressors on children’s health.


Diaz, a current fellow and a Ph.D. student in Environmental Health Sciences at UC Berkeley, also talks about how her own childhood shaped her understanding of environmental injustice, and how being a mother has shaped her research – and her life.

The Agents of Change in Environmental Justice podcast is a biweekly podcast featuring the stories and big ideas from past and present fellows, as well as others in the field. You can see all of the past episodes here.

Listen below to our discussion with Diaz and subscribe to the podcast at iTunes or Spotify.


Agents of Change in Environmental Justice · Laura Diaz on how social and environmental stress impact children’s health

Transcript


Brian Bienkowski

Laura, how are you doing today?

Laura Diaz

I'm doing okay. How are you

Brian Bienkowski

I'm doing great. And where are you today?

Laura Diaz

I am in South San Francisco, which is close to the San Francisco International Airport.

Brian Bienkowski

Very cool. I love it out there. And you are from originally not far from there. So tell me a little bit about growing up in Northern California.

Laura Diaz

Yeah, so I grew up in the East San Francisco Bay Area, and specifically, it's like the geographic location where the watershed from the Sierra mountains meets the mouth of the San Francisco Bay, and it's beautiful. And just behind where the Bay is, there's these rolling golden hills. And because of the history that Pittsburgh has, which is my hometown, with the fossil fuel industry, and specifically during the Gold Rush, they were actually mining coal out there that laid the foundation for a polluting industry which persists today, and it's become one of the more affordable places in the San Francisco Bay area to live. And so I lived in between this corridor of polluting industry, right along that water, which included the Dow Chemical Plant, the power plant and several other toxic release facilities. And then on the other side of us was a highly trafficked freeway. And then we lived there until it was about four and then shortly after, we moved just over that same freeway, and the freeway was like legit our neighbors and the that whole corridor polluting industry was still an eye shot of where we lived. And those cities are largely known as commuter cities because they're so affordable. A lot of families move out there to raise their family, and that was true for my parents as well. So they commuted about an hour and a half, and so a lot of our childhood was spent largely unsupervised, and at some point, my parents decided to get us an inter-district transfer to the city where they worked. And so they worked in a city called wanna Creek, California, and that city is predominantly white and home to the uber rich. And I remember like, being at school and just feeling like I really didn't, like fit in. And it went beyond that, like kind of normal, like what I see with my son, where he's, like, trying to make friends and stuff. It went beyond that, like something just didn't fit. And I remember like, walking home from school, and I would have to walk through this outdoor plaza with stores like Neiman Marcus and Tiffany's and make my way to my dad's tailoring shop. And like, I remember opening the door, and I would get this like sense of relief, and I would feel like I could breathe again. And it was like home, and yet, I would see my dad on his hands and knees fixing the clothing of my classmates parents. And then every day we would take our trek back home. So we'd be going from this very affluent space, it was very green, a lot of open space back home, to this space where it's a lot of concrete, like again, we'd see, like, that whole polluting industry, and yet, like, I'd hop out of the car super excited, run to my neighbor's house and we'd be playing basketball for the rest of the evening. I have, like, so much love for where I grew up, and I feel like my work now is like. Of letter to my community, and I had this like daily reminder of the difference between wealth and poverty, between predominantly white communities and predominantly diverse communities.

Brian Bienkowski

Well, that's a really beautiful way to paint your hometown. I have to say, when I first looked it up, I was like, I did not know Laura was from Pittsburgh. When I met her, she seemed like she was from the West Coast, so I did not know that there was a Pittsburgh California. But thank you so much for painting that picture. And you, you know, you've mentioned this kind of industrial backdrop and maybe some social dynamics and racial dynamics at school that were uncomfortable. I'm wondering where along the way you became aware or interested in kind of the concept of environmental justice and injustice?

Laura Diaz

Yeah. So, I mean, like those, like, big smokes stacks, like, what we see in pictures a lot when we see, like, read articles about environmental justice, like, that was the backdrop to my childhood. And yet, I had no idea that that, that I grew up in an environmental justice community, right? So I am a former high school science and math teacher, and there was a summer where I did a professional development program in the topic of sustainability. It had it was there that I met Karna Wong, and she's a faculty at Sonoma State University, and she absolutely changed my life. She gave a workshop on environmental justice, and she taught us about the principles of environmental justice, various frameworks of EJ and her and I, like, hit it off like it was, it was great. This is why I love, like, professional development programs, which we can talk about later. But she also showed me this database called CalEnviroScreen, and that is, it's basically a map of California, and it displays community exposures to pollution, health burdens and demographic characteristics. And that was the first time that I saw my community in bright red, because bright red means more burdens. And then I saw Walnut Creek bright green, and bright green is associated with less burdens, or under-burden. And it just was like this final puzzle piece of like, like, whoa, everything came together. And I like, understood that that feeling of like something wasn't right made so much sense by looking at that map, and I realized that environmental justice wasn't only something I like, loved learning about, it also impacted my life. I don't know, and I'm never going to know, if growing up in close proximity to these facilities is a reason why I have two chronic autoimmune diseases, but it does drive my work. And I think also, in addition to that, there was another educator fellowship that I was on, and I did that with Earthwatch. We were out at catalea Island, and we were studying Harmful Algal Blooms. And while we were out there, my mom called me, and she was like, I made it out, but paradise is on fire. And that was in 2018 and although she made it out alive, 85 folks did not, and that was the campfire. And over 13,000 homes were lost in one of those of my mom's and it's like, it's hard to talk about this, but it's like, because it's so deeply personal, right? But I remember flying home from that experience and waiting outside of the airport and it was raining ash, and those ashes included my mom's home. So it's just the impacts of climate justice, and environmental justice has hit me, personally, very hard, and I think more recently, I've been really thinking about the connection between wildfires in California, the fossil fuel industry and our inability to transition away fast enough, and how my community is going to continue to pay the price until we do so. And that really drives the work that I do. And like you can hear my voice shaking, but it's like I have so much passion to you, and it's so important. There's, there's an urgency to this work that's needed that I'm I'm not quite sensing enough in the academic spheres that I'm in now, but I hope to be a part of that driving force.

Brian Bienkowski

And I've been asking everybody this question before we get into some of your your research and your education, what is a moment or event that has helped shape your identity?

Laura Diaz

Yeah, okay, I think there's a couple I feel like we're getting into, like, the intense stuff in the beginning. So like, Sorry my voice is shaking, but also self-deprecating humor is how I get. So, I think the first thing that really, really impacted like who I am and how I moved through this world, was when I was in ninth grade, my dad and I had to go to the county courthouse, and it was the first time that I saw my brother handcuffed. And we were there to see him and be there for him while he was going to be sentenced for his first felony. And I remember the judge asked his family to stand up those, those of us who were there in support. And I was bawling as my I was seeing my hero like out there behind a glass wall in handcuffs, and I was like, barely could stand up, and I was just tears were just rolling down my face, and, like, for the longest time, I thought it was actually my fault that he got sentenced, because I couldn't keep it together, right? It was just I was I must have been around 13, right? a kid. And I think during my adolescence, I really developed this, like, strong understanding of the impact of oppression on the lives of children, and it really is the root of how I move through the work that I do. And I think also kind of on a more tender side, a moment that really has shaped who I am, is being my son's mom, and the day I became his mom was the most beautiful day of my life. And I tell him often how lucky I am to be his mom, and I like to say that my most proudest title is being soccer mom. And I do know too that like the most important thing I can do, personally and professionally is invest in my son and my family.

Brian Bienkowski

Awesome. Well, thank you so much for both of those very we will get you away from these, all of these that are pulling at your emotions. Maybe we'll circle back and we'll get emotional again, but thank you so much for opening up about that. I'm sure there are others who can relate. And when you talk about tears streaming down, I was hoping my my blue light glasses were hiding we're hiding mine on that so, so let's change gears a little bit. And you went to so you mentioned Sonoma State University, which is now recognized as a Hispanic serving institution, and you went there for your undergraduate degree. So we've had folks on talking about going to historically Black colleges and kind of the impact that had on them and a level of comfort and that it brought them. So I was wondering if you could talk about that experience and how going to a Hispanic Serving Institution benefited you?

Laura Diaz

Yeah, I, I remember the first week being on campus and like, being overwhelmed with this, like, sense of hope. And I think, and it was great, like I felt like, you're saying, I just felt like safe, that that uncomfortable, like unwelcoming feeling that I felt when I was going to schools in Walnut Creek was like gone. And I knew that I was believed in and supported by by the faculty. The commitment to teaching excellence at HSIs is so high, and that's really impacted my teaching philosophy now, and I understand firsthand what it means like to create a vulnerable learning environment and what it means to like not be in one, right? And because I was able to really thrive in this space, I majored in Molecular Cell bio. I double minored in Chem and in music. I was part of the chamber music orchestra, like I was, like, loving life. It was great. And also, my junior year, it started getting sick, and I was having to walk to school with a cane, and I ended up getting diagnosed with lupus, and during that diagnosis period that was really difficult. And despite that, I knew that the faculty were there for me. I knew my classmates were there for me, and they really helped me push through a really, really difficult time for me. And so I just, I feel very committed to what education means, what that means for social mobility, and that's stayed with me. And continue, I continue to work and partner with Sonoma State, which is, yeah, really great.

Brian Bienkowski

Yeah, what a great opportunity. Do you still play music?

Laura Diaz

I don't, but I need to. I played the piano. Oh,

Brian Bienkowski

no, no, that's that was my next question. That's very cool. Yeah, I am a musician. I play a whole variety of instruments. And I've said on the podcast before that it just it feels like it is that other side of the brain. It just feels so good to take some time to stretch the create creative legs every now and then, after staring at a computer for so long. So I'm always curious.

Laura Diaz

Yeah, I hear that, and hopefully this inspires me to, like, get it together,

Brian Bienkowski

get back to it. Yeah. Well, I'm sure you have as we're gonna get into it sounds like we have plenty going on, but I hope you find some time. So now you are studying air pollution, specifically particulate matter burdes in marginalized communities. So particulate matter is linked to negative health outcomes, and one of them that you focus on is mitochondrial dysfunction. So can you explain first, what mitochondria are and how air pollution may affect them?

Laura Diaz

So mitochondria are these fascinating little organelles that I've been spending several years thinking about. They're the site of chemical energy production of our cells, so they make the energy that our cells need in order to actually function properly. And they're really unique. So they have their own DNA or their own genome, and in that, within that, it codes for 13 proteins which are vital for the mitochondria to be functioning properly. And what's interesting about that is that they they lack these protective mechanisms that, like our nuclear DNA has, and so it makes them particularly vulnerable to situations where our cells are undergoing stress, and we see that mitochondrial function declines with aging and also with disease. And what I spend a lot of time thinking about is what mitochondrial function or dysfunction looks like in epithelial cells. And those are the cell types that we find in the lining of our mouth. They're in our lungs, and there's like outer barrier of our skin, so they come in contact with this, like wild outer world, and play this really important protective mechanism, and they they play a big role in detoxification. And so what happens when they're exposed to particulate matter? There's actually an increase in free radicals in our in the cell, and those are called reactive oxygen species, and those, if there's too many and there's an imbalance, those can cause mitochondrial dysfunction, and that's what I'm spending a lot of time thinking about.

Brian Bienkowski

So if these mitochondria are disrupted in some way by and I should say particulate matter is fine particulate pollution. This can come from anything from wildfires to traffic to to heavy industry, fossil fuel burning, if the mitochondria are disrupted, what kind of impact may that have on, let's say, developing children?

Laura Diaz

Yeah, so I, my research focuses on child health, and again, I'm really thinking about these epithelial cells and what's happening in relation to the exposure of, like, what you're saying with particulate matter and and when we see that mitochondrial dysfunction, it actually triggers a cascade of events to happen in the cell. So the cell tries to fix these problems when they come up, but when it's constantly having to fix these problems, that's when, that's when, like, long-term issues can can arise. And so what we see is that the this outer lining of cells can be really impacted by mitochondrial dysfunction, because they they get put in this like pro-inflammatory state, and so then they become really vulnerable to things like allergens. So what I'm studying, then, is, is that mitochondrial dysfunction playing a role in the development of diseases like eczema or rhinitis or asthma among children in frontline environmental justice communities.

Brian Bienkowski

So as part of this, you're also looking at adverse childhood experience known as ACES, which was a new acronym for me after I met you at the retreat. That was something I didn't know about. So in addition to the air pollution and mitochondrial dysfunction, you're looking at aces. So can you explain aces and why you feel it's an important part of including in this research,

Laura Diaz

ACES stands for Adverse Childhood eEperiences. In California, there's a lot of work being done on the public health end of things, and it's getting labeled as toxic stress. What it is is it's a survey with 10 questions that assesses a child's exposure to abuse, neglect and household challenges. And back in the 90s, there was a groundbreaking study that was done, and they found that exposure to ACES was associated with increased risk of death from seven out of 10 of the leading causes of death and so and there's been a lot more work done now, but I really want to invite us all in, like environmental health work and environmental justice, to be thinking about day to day stress, and that exposure to stress as an environmental exposure, just like we would think about particulate matter. And in order to understand the impact of oppression and the health impacts living in frontline communities, I think it's really important that we also include exposure to stress. And what I've found in my research is that exposure to ACES is associated with an increase in mitochondrial dysfunction and so, and I'm seeing that among a cohort of children, right? So it like the changes that becomes embodied in our cells happens pretty quickly. It can at least.

Brian Bienkowski

So you're seeing that not only. So if there are these environmental insults, and then you pile on kind of just day to day stress in a child's life, whether that's from inside or outside of the home, the combination of those, they're both doing bad things at the cellular level, to the kid or to a child, and setting them up for potential increased illness.

Laura Diaz

Yeah, and I think, like, I'm really thinking about the mitochondria a lot, obviously, but if we think about being in a state of stress, where we're in this, like fight or flight, like our physiological response, our cells have an increased need of energy, and when that happens over and over and over again, then the mitochondria is being overworked. And so understanding what's happening at the cellular level is also really important.

Brian Bienkowski

v really fascinating research. And I love the idea of thinking more about stress, and of course, with your research with kids, but even for adults. I mean, I think stress is such a kind of a silent killer. I mean, it just, it's so bad for our body, and yet, a lot of us kind of live with it, and it's part of our, part of our life, so it's really important to to remember that. So I'm wondering, what are some of the next steps in this research? What would you like to do? What are you going to do? What are you working on?

Laura Diaz

Yeah, I think, like, I mean, I hope I can spend more time studying the mitochondria. I think, as is true for like, most folks in graduate school, really figuring out, like, where is my niche? Like, where is my lane? Like, I do hope that I get to spend quite a bit more time really deep diving into the mitochondria. Specifically, I'm really curious about what is happening and what other biomarkers are associated with this mitochondrial dysfunction, and also like mitochondrial mutations, which are pretty interesting to think about as well. So I'm kind of following, like what's happening in a molecular mechanism level.

Brian Bienkowski

Do you like doing research?

Laura Diaz

Yeah, I love it. Oh, I love it. Even, like and, and when I shouldn't say even, and when I was teaching, like, research was a big part of of my teaching practice with high schoolers. I have, I think this is like something that has been passed on from, from my family, for sure, but in my is just this love for learning and not being afraid of of kind of the unknown. Yeah.

Brian Bienkowski

So you mentioned earlier this kind of idea of being really interested in kind of professional development, and I know outside of your research, you're also, you're doing some other things, and you've you founded a nonprofit, the Educator Collective for Environmental Justice. So I was wondering if you could just tell us about that organization and why you started it?

Laura Diaz

Yeah, so when I met Karna Wong who, like, blew my mind about environmental justice and and really started supporting me on my journey through, like, integrating environmental justice in the classroom, I literally started writing curriculum for my class that evening, and I knew that there was a gap in environmental justice curriculum and training for educators at that time, and I was chosen to be a Science Friday educator collaborator, where I was able to actually publish my EJ curriculum, which was really cool. And I started getting invited to give conferences or talks at conferences, and I gave a talk at a climate solutions conference, and that's where I met Samra Pathania, who's also a high school teacher, and he is just as passionate about decarbonization and climate solutions. And so we spent that whole conference just like talking together and visioning together, like how we could create a space for professional development and like, almost like a grassroots movement building for educators around these topics of environmental justice and climate solutions. Because, just like, I have that really, like urgent sense to, like do something now, he's similar with decarbonization. And so originally, we started as a home for Educator professional development for again, EJ and climate solutions. And we actually grew really quickly, which was really cool and supported, started supporting youth. So we had a youth collective, which now we have two Youth Environmental Justice councils that we support. We have a cohort of educators that that we support in EJ and climate solutions and decarbonization. And then we also partner with communities. So we've given workshops to communities like building DIY indoor air filters and giving them like educational workshops around environmental justice. We partnered with promotoras and doing, like, some air pollution monitoring. So it's been this, like, really beautiful little space that that is is growing and thriving.

Brian Bienkowski

Excellent. And speaking of being too busy to play piano, you also co-founded the Partners for Equity and Research, which supports undergraduates doing community engaged research. So can you also talk about this, maybe a project or two that you've worked on there, and how you work to center community voices and experiences in that initiative?

Laura Diaz

Yeah, so maybe I could describe a little bit of like, our structure. It's a little bit like, yeah, has some moving pieces, but we are an environmental justice hub that's housed at Sonoma State University, and I co-lead that with Professor Daniel Soto, who's a department chair of Geography, Environment and Planning, and we train undergraduate researchers in community-driven research methods. So I like to think of it as a triangle, the way our partnership works. So we have the university and Dr. Soto's really important. Like, kind of the lead there. He's able to recruit the students at Sonoma State. And then there I, like, I'm another point wearing my nonprofit hat, and then we have our community partners, and they are the North Bay Organizing Project, and the Latinx Student Congress, and our partner there is Manny Morales, and we, with his hope, he recruits students from the Latinx Student Congress, And we have a running Latinx Youth Environmental Justice Council, so they get to come on campus, and Dr. Soto and I train the undergrads to, like, lead these workshops in environmental justice and community health. And it's really amazing. And again, like a lot of the students that we're recruiting, most are Latinx, if not most are first gen and then Dr Soto and I are both Latinx, and we're serving, I think it's 100% Latinx youth EJ council with a Latinx partner. And most of these kids come from a predominantly Latinx frontline EJ community. So it's just like, it's such a beautiful space. And Dr Sota, and I really spent a lot of time thinking about reimagining the academy as a public good, like, how do we make the university a space that actually serves the community? And I think speaking about HSI or Hispanic serving institutions, they are so primed to do that because of who we are, right? And there's a there's trust that's kind of baked in, and just our identity right, apart from, like, our ethics really driving building trust with our partners. And we've been using education as a tool for community deliberation so that we can support these youth as they fight for cleaner air and a more just environment. And so things that we've worked on, and so I think, like that piece of it is, like, more important, almost in like, the stuff that they get to do, because we put in all this work to build this partnership, and now we get to just follow their lead, the youth lead. It's beautiful. And so we've done things like, we've given them air monitors. They get to go out and like, monitor the air and like that data is theirs. And then we teach them the research methods of how to clean that data. So it truly is like a practice of data sovereignty. Like that data is theirs. It does not get pushed out to the cloud. It's on an SD card, and they get to decide what they do with it. And we have a couple other projects, like in the works, but it's been a really like healing practice in some of the environmental justice work I'm privileged to do.

Brian Bienkowski

Well, I bet some of the participants would agree, and the idea of reimagining the academy to be a public good is what you said. And like that is a pretty simple statement, but it's like pretty radical, if you think about the ways universities and institutions have operated for century, over a century. And it's a pretty radical concept, so good on you for for being part of that change. And does this how beautiful to have you speak about Sonoma State University as being pivotal at one point in your life, and now you are, you are one of those people that's that's providing a space for others. So just that full circle is really cool to hear about.

Laura Diaz

Yeah, it's been, it's been pretty special.

Brian Bienkowski

Yeah, for sure. And so you mentioned that you are a mother, so we have had, we actually had a podcast with a couple senior fellows where they discuss being researchers and mothers and how things change them, and it was just one of my favorite podcasts that we've done when I turned the microphone over to them, and I'm wondering just how it has it does has it done the same for you? Has it changed how you've thought about or conducted your research?

Laura Diaz

Yeah, so I came into grad school already being a mom, and so there are ways that it has impacted how I engage in research, for sure, and I think a really, a really, kind of important component of of the work that we do with at Sonoma State, with P4ER. We're also supporting undergraduate students who are also parents, and creating a space where the student parent feels like their whole self is welcome is incredibly important to some of the things that we do. And so there's like, I often bring my son to our workshops, because I know that if I do, then the students can also bring their kids. And so we're really trying to create an atmosphere where motherhood is welcomed, where it's embraced and it's also encouraged. And I think another like piece of being my son's mom that has really impacted me in research, which I feel like this is, again, I'm like, I love education, but that, I think, is a piece that we don't talk about enough in research, is the role that education or knowledge sharing plays in the process of knowledge production. And so if we do research well, but we don't do teaching well, we aren't pushing the edges of that new knowledge enough. And in research, we get to ask new questions, and we get to present that to new learners who have a different worldview than those of us who are asking those questions, so they can write like during the moment research is being done actually impact that research to be a more like to have a fuller angle to it. And so I just, I think about that a lot, because my son is in third grade and just seeing how he's learning and all that stuff. I think, I think a lot about the role of holistic learning and how that can play a big role in healthy development of of children and and research.

Brian Bienkowski

And I'm wondering if there are things that you tips you have, or things that you do to decompress, to cope, to make sure that you're doing okay.

Laura Diaz

I'm a dancer, so I'm a salcera, and I dance with a salsa Maria Dance Company in Oakland. Shout out to my dance family. That is a space where I have to shut my brain off, and it's like you were talking about, like music. I think I've been kind of able to get away with not playing piano for so long, because I've been really intensely dancing and so having, like, an artistic expression for my body has been really important. So like, I that that plays a big role in my own ability to kind of sustain we have work that's justice centered. And the cool thing about that too is that, like, they also really embrace like family. So like, my son will come and and, like, sit and watch practices, which he, like loves doing, which is super cool, because I remember being kid and going to my dad's soccer games and like that being a really like, it actually is, like, a big health promotion piece of my life, right, seeing my parents be active. Um, but anyways, so yeah, dance.

Brian Bienkowski

I think that's a good point too. Like having your children. See, I'm a big fan. I don't have kids. We are, we are child-free, but I have nieces and nephews, and I think it's so important for kids to see their parents as human beings. Like, yes, mom works hard and does research and but mom also dances like that. I don't know, to me, there's something cool about kids seeing their parents as whole human beings. So Laura, before we get to some of the fun questions and get you out of here, what are you optimistic about?

Laura Diaz

this summer, we came off of doing a summer institute for educators, and being able to be in community with educators who are these incredible like, they're the heart of a lot of of their community, like, of their school communities, and the impact that they have on on the kids that they get to teach, like, really does provide a lot of hope for me. And I think, like also being able to partner with youth and seeing just how they're such a raw reflection of society, how they're like, not fully yet assimilated into our social hierarchies. And when they see something that's wrong, like, they call it outright then and there, right? And they're like, dude, let's do something about it. And like, that is the energy that we need in this space, and it's such a privilege to work in partnership to their own EJ activism.

Brian Bienkowski

Awesome. Well, what a beautiful note to end on. So I have three rapid fire questions where you can just answer with one word or a phrase. My dream vacation is

Laura Diaz

Mexico City.

Brian Bienkowski

I feel most creative when I'm

Laura Diaz

Dancing salsa

Brian Bienkowski

if I could have dinner with one person, it would be

Laura Diaz

Leslie Jones.

Brian Bienkowski

Tell me about Leslie Jones?

Laura Diaz

Oh, she's someone I really look up to. She also has a brother who struggled and like seeing the way her autobiography. Is amazing, by the way, but just like the way that she's chosen to like, be strong and push through that and also be authentic and be raw and be herself, is something that I like. I hope that I bring in all the spaces that I have the privilege to navigate through.

Brian Bienkowski

Well, you've certainly brought it to the space today. And I don't know if it's if it's her autobiography or not, but what is the last book you read for fun?

Laura Diaz

I read In the Dream House, which is also an autobiography by Carmen Maria Machado. It's really beautiful. I read a lot. So I also read hood. Just finished reading Hood Feminism, which is an amazing book by Mickey Kendall, and it like talks about how feminism needs to prioritize the hood bipoc woman's experience. It's amazing.

Brian Bienkowski

But Laura, it has been so wonderful to have you on today. I'm so glad you're in this program and to be introduced to your work and your mind and the things that you're thinking about. So thank you so much.

Laura Diaz

Yeah, thank you so much.

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Why the health risks from air pollution could be worse than we thought

A new study found elevated and previously overlooked health risks for communities living near industrial polluters.

Many people who live near heavy industry are routinely exposed to dozens of different pollutants, which can result in a multitude of health problems.Traditionally, environmental regulators have assessed the risks of chemical exposure on an individual basis. But that approach has led to underestimates of the total health risks faced by vulnerable populations, according to a new study.Now researchers at Johns Hopkins University have developed a new method for measuring the cumulative effects on human health of multiple toxic air pollutants. Their findings were published last week in Environmental Health Perspectives.Regulators typically measure community risk by looking at the primary health effects of individual chemicals, an approach that often fails to address their combined risks, said Keeve Nachman, the study’s senior author.Residents in disadvantaged communities are exposed to a toxic stew of chemicals daily, and they “don’t just breathe one at a time, [they] breathe all the chemicals in the air at once,” said Peter DeCarlo, another of the study’s authors.Follow Climate & environment“Very little has happened to protect these people. And one of the major reasons for that is that current approaches have not done a good job showing they’re in harm’s way,” Nachman said.“When we regulate chemicals, we pretend that we’re only exposed to one chemical at a time,” Nachman continued. “If we have each chemical and we only think about the most sensitive effect, but we ignore the fact that it could potentially cause all these other effects to different parts of the body, we are missing protecting people from the collective mixture of chemicals that act together.”Nachman, DeCarlo and their colleagues set out to more accurately account for the total burden of breathing multiple toxic air pollutants.The study assessed the risks faced by communities in southeastern Pennsylvania living near petrochemical facilities using a mobile laboratory to measure 32 hazardous air pollutants, including vinyl chloride, formaldehyde and benzene. The researchers developed real-time profiles of the pollution concentrations in the air and translated them into estimates of what people are actually breathing.Using these estimates and a database of the chemicals’ toxic effects on various organs, the researchers created projections of the long-term cumulative health impacts of the pollution.By looking past the immediate health effects of chemicals and measuring what happens as concentrations increase, negative health outcomes can be detected in other parts of the body, Nachman said.For example, while EPA risk assessments consider only the respiratory effects of formaldehyde, the study found potential health impacts in 10 other organ systems, including neurological, developmental and reproductive harms.The cumulative risk study appears at a fraught moment for environmental regulation. Although the Biden administration in November released a draft framework for monitoring the cumulative impact of chemical exposure, the Trump administration has announced plans to roll back dozens of Biden administration environmental rules and is considering shutting down the EPA’s Office of Research and Development.A spokesperson for the American Chemistry Council, an industry trade group, said in an email that the Johns Hopkins research “may provide some useful information” but that “further assessment, replication and validation will be needed” of the methods and substances assessed in the study.“ACC continues to support the development of scientifically robust data, methods and approaches to underpin cumulative risk assessments,” the spokesperson added.The EPA did not provide an immediate comment while it reviewed the study.Jen Duggan, the executive director of the Environmental Integrity Project, said communities often face higher health impacts than the EPA estimates due to their exposure to dangerous chemicals from multiple sources.“The authors of this paper powerfully demonstrate how EPA has repeatedly underestimated the true health risks for people living in the shadow of industrial polluters,” Duggan said.

Utah Bans Fluoride In Public Drinking Water

Republican Gov. Spencer Cox signed the legislation despite widespread opposition from dentists and national health organizations.

SALT LAKE CITY (AP) — Utah has become the first state to ban fluoride in public drinking water, despite widespread opposition from dentists and national health organizations.Republican Gov. Spencer Cox signed legislation late Thursday that bars cities and communities from deciding whether to add the mineral to their water systems.Fluoride strengthens teeth and reduces cavities by replacing minerals lost during normal wear and tear, according to the U.S. Centers for Disease Control and Prevention.Utah lawmakers who pushed for a ban said putting fluoride in water was too expensive. Cox, who grew up and raised his own children in a community without fluoridated water, compared it recently to being “medicated” by the government.The ban comes weeks after U.S. Health Secretary Robert F. Kennedy Jr., who has expressed skepticism about water fluoridation, was sworn into office.More than 200 million people in the U.S., or almost two-thirds of the population, receive fluoridated water through community water. The addition of low levels of fluoride to drinking water has long been considered one of the greatest public health achievements of the last century.But some cities across the country have gotten rid of fluoride from their water, and other municipalities are considering doing the same. A few months ago, a federal judge ordered the U.S. Environmental Protection Agency to regulate fluoride in drinking water because high levels could pose a risk to the intellectual development of children.We Don't Work For Billionaires. We Work For You.Big money interests are running the government — and influencing the news you read. While other outlets are retreating behind paywalls and bending the knee to political pressure, HuffPost is proud to be unbought and unfiltered. Will you help us keep it that way? You can even access our stories ad-free.You've supported HuffPost before, and we'll be honest — we could use your help again. We won't back down from our mission of providing free, fair news during this critical moment. But we can't do it without you.For the first time, we're offering an ad-free experience to qualifying contributors who support our fearless journalism. We hope you'll join us.You've supported HuffPost before, and we'll be honest — we could use your help again. We won't back down from our mission of providing free, fair news during this critical moment. But we can't do it without you.For the first time, we're offering an ad-free experience to qualifying contributors who support our fearless journalism. We hope you'll join us.Support HuffPostAlready contributed? Log in to hide these messages.The president of the American Dental Association, Brett Kessler, has said the amounts of fluoride added to drinking water are below levels considered problematic.Opponents warn the ban will disproportionately affect low-income residents who may rely on public drinking water having fluoride as their only source of preventative dental care. Low-income families may not be able to afford regular dentist visits or the fluoride tablets some people buy as a supplement in cities without fluoridation.The sponsor of the Utah legislation, Republican Rep. Stephanie Gricius, acknowledged fluoride has benefits, but said it was an issue of “individual choice” to not have it in the water.

Dozens of House Democrats push back on planned EPA research and development cuts

Dozens of House Democrats pushed back on planned Environmental Protection Agency (EPA) cuts in a Thursday letter to the agency. “We are particularly concerned by the proposal to eliminate up to 75 percent of employees within EPA’s Office of Research and Development (ORD),” the letter, from Rep. Greg Landsman (D-Ohio) and addressed to EPA Administrator...

Dozens of House Democrats pushed back on planned Environmental Protection Agency (EPA) cuts in a Thursday letter to the agency. “We are particularly concerned by the proposal to eliminate up to 75 percent of employees within EPA’s Office of Research and Development (ORD),” the letter, from Rep. Greg Landsman (D-Ohio) and addressed to EPA Administrator Lee Zeldin, reads. “Firing nearly 1,200 dedicated ORD public servants across the country would decimate the scientific backbone of EPA which provides independent, objective, and unparallelled research that informs Agency assessments and decision-making,” they added. The letter featured the signatures of over 60 House Democrats including Reps. Nikema Williams (Ga.), Ro Khanna (Calif.), Summer Lee (Pa.), Don Beyer (Va.), Joe Neguse (Colo.), Jamie Raskin (Md.), Pramila Jayapal (Wash.) and Rashida Tlaib (Mich.). The Hill reported last week that the EPA was considering the cutting of its science arm and dropping most of the employees of the branch, per documents reviewed by Democratic staff for the House Science, Space and Technology Committee. The termination of the Office of Research and Development as an EPA National Program Office is called for in a plan reviewed by committee staffers. Fifty percent to 70 percent of the 1,540 staffers in the office would be cut under the plan. “While no decisions have been made yet, we are actively listening to employees at all levels to gather ideas on how to better fulfill agency statutory obligations, increase efficiency, and ensure the EPA is as up-to-date and effective as ever,” EPA spokesperson Molly Vaseliou said in a previous statement. In his letter, Landsman said dropping “the majority of ORD employees would be particularly harmful to EPA’s work to address industrial pollution, contaminated air and drinking water, environmental health, and worsening natural disasters.” The Ohio Democrat also questioned the EPA about the reasoning behind the staff cuts in the plan and the way the agency is prepping “to mitigate the loss of scientific expertise, institutional knowledge, and subject matter capacity resulting from this proposed action.” The Hill has reached out to the EPA for comment.

When a 1-in-100 year flood washed through the Coorong, it made the vital microbiome of this lagoon healthier

The 2022 floods triggered shifts in the Coorong’s microbiome—similar to our gut bacteria on new diets—revealing why freshwater flows are vital to wetland health.

Darcy Whittaker, CC BYYou might know South Australia’s iconic Coorong from the famous Australian children’s book, Storm Boy, set around this coastal lagoon. This internationally important wetland is sacred to the Ngarrindjeri people and a haven for migratory birds. The lagoon is the final stop for the Murray River’s waters before they reach the sea. Tens of thousands of migratory waterbirds visit annually. Pelicans, plovers, terns and ibises nest, while orange-bellied parrots visit and Murray Cod swim. But there are other important inhabitants – trillions of microscopic organisms. You might not give much thought to the sedimentary microbes of a lagoon. But these tiny microbes in the mud are vital to river ecosystems, quietly cycling nutrients and supporting the food web. Healthy microbes make for a healthy Coorong – and this unassuming lagoon is a key indicator for the health of the entire Murray-Darling Basin. For decades, the Coorong has been in poor health. Low water flows have concentrated salt and an excess of nutrients. But in 2022, torrential rains on the east coast turned into a once-in-a-century flood, which swept down the Murray into the Coorong. In our new research, we took the pulse of the Coorong’s microbiome after this huge flood and found the surging fresh water corrected microbial imbalances. The numbers of methane producing microbes fell while beneficial nutrient-eating bacteria grew. Populations of plants, animals and invertebrates boomed. We can’t just wait for irregular floods – we have to find ways to ensure enough water is left in the river to cleanse the Coorong naturally. Under a scanning electron micrograph, the mixed community of microbes in water is visible. This image shows a seawater sample. Sophie Leterme/Flinders University, CC BY Rivers have microbiomes, just like us Our gut microbes can change after a heavy meal or in response to dietary changes. In humans, a sudden shift in diet can encourage either helpful or harmful microbes. In the same way, aquatic microbes respond to changes in salinity and freshwater flows. Depending on what changes are happening, some species boom and others bust. As water gets saltier in brackish lagoons, communities of microbes have to adapt or die. High salinity often favours microbes with anaerobic metabolisms, meaning they don’t need oxygen. But these tiny lifeforms often produce the highly potent greenhouse gas methane. The microbes in wetlands are a large natural source of the gas. While we know pulses of freshwater are vital for river health, they don’t happen often enough. The waters of the Murray-Darling Basin support most of Australia’s irrigated farming. Negotiations over how to ensure adequate environmental flows have been fraught – and long-running. Water buybacks have improved matters somewhat, but researchers have found the river basin’s ecosystems are not in good condition. Wetlands such as the Coorong are a natural source of methane. The saltier the water gets, the more environmentally harmful microbes flourish – potentially producing more methane. Vincent_Nguyen The Coorong is out of balance A century ago, regular pulses of fresh water from the Murray flushed nutrients and sediment out of the Coorong, helping maintain habitat for fish, waterbirds and the plants and invertebrates they eat. While other catchments discharge into the Coorong, the Murray is by far the major water source. Over the next decades, growth in water use for farming meant less water in the river. In the 1930s, barrages were built near the river’s mouth to control nearby lake levels and prevent high salinity moving upstream in the face of reduced river flows. Major droughts have added further stress. Under these low-flow conditions, salt and nutrients get more and more concentrated, reaching extreme levels due to South Australia’s high rate of evaporation. In response, microbial communities can trigger harmful algae blooms or create low-oxygen “dead zones”, suffocating river life. The big flush of 2022 In 2022, torrential rain fell in many parts of eastern Australia. Rainfall on the inland side of the Great Dividing Range filled rivers in the Murray-Darling Basin. That year became the largest flood since 1956. We set about recording the changes. As the salinity fell in ultra-salty areas, local microbial communities in the sediment were reshuffled. The numbers of methane-producing microbes fell sharply. This means the floods would have temporarily reduced the Coorong’s greenhouse footprint. Christopher Keneally sampling for microbes in the Coorong in 2022. Tyler Dornan, CC BY When we talk about harmful bacteria, we’re referring to microbes that emit greenhouse gases such as methane, drive the accumulation of toxic sulfide (such as Desulfobacteraceae), or cause algae blooms (Cyanobacteria) that can sicken people, fish and wildlife. During the flood, beneficial microbes from groups such as Halanaerobiaceae and Beggiatoaceae grew rapidly, consuming nutrients such as nitrogen, which is extremely high in the Coorong. This is very useful to prevent algae blooms. Beggiatoaceae bacteria also remove toxic sulfide compounds. The floods also let plants and invertebrates bounce back, flushed out salt and supported a healthier food web. On balance, we found the 2022 flood was positive for the Coorong. It’s as if the Coorong switched packets of chips for carrot sticks – the flood pulse reduced harmful bacteria and encouraged beneficial ones. While the variety of microbes shrank in some areas, those remaining performed key functions helping keep the ecosystem in balance. From 2022 to 2023, consistent high flows let native fish and aquatic plants bounce back, in turn improving feeding grounds for birds and allowing black swans to thrive. A group of black swans cruise the Coorong’s waters. Darcy Whittaker, CC BY Floods aren’t enough When enough water is allowed to flow down the Murray to the Coorong, ecosystems get healthier. But the Coorong has been in poor health for decades. It can’t just rely on rare flood events. Next year, policymakers will review the Murray-Darling Basin Plan, which sets the rules for sharing water in Australia’s largest and most economically important river system. Balancing our needs with those of other species is tricky. But if we neglect the environment, we risk more degradation and biodiversity loss in the Coorong. As the climate changes and rising water demands squeeze the basin, decision-makers must keep the water flowing for wildlife. Christopher Keneally receives funding from the Australian Government Department of Climate Change, Energy, the Environment and Water. His research is affiliated with The University of Adelaide and the Goyder Institute for Water Research. Chris is also a committee member and former president of the Biology Society of South Australia, and a member of the Australian Freshwater Sciences Society.Matt Gibbs receives funding from the Australian Government Department of Climate Change, Energy, the Environment and Water. Sophie Leterme receives funding from the Australian Research Council (ARC). Her research is affiliated with Flinders University, with the ARC Training Centre for Biofilm Research & Innovation, and with the Goyder Institute for Water Research.Justin Brookes does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

Murphy, a Beloved Bald Eagle Who Became a Foster Dad, Dies Following Violent Storms in Missouri

A beloved bald eagle who gained popularity after incubating a rock is mourned after dying from head trauma sustained during violent storms in Missouri last week

A beloved bald eagle who gained popularity for incubating a rock in 2023 is being mourned Saturday after the 33-year-old avian died following intense storms that recently moved through Missouri. Murphy, who surpassed the average life span of 25 years, died last week at the World Bird Sanctuary in Valley Park, Missouri. Sanctuary officials believe the violent storms that ripped apart homes and claimed 12 lives last weekend may have factored in the bird's death. They said birds have access to shelters where they can weather storms and the sanctuary has contingency plans for different environmental situations. But evacuations weren't performed since no tornadoes approached the sanctuary. Three other birds who were in the same shelter with Murphy survived. A veterinarian performed a necropsy and found the bald eagle sustained head trauma. “We are unable to determine if Murphy was spooked by something and hit his head while jumping off a perch or if wind and precipitation played a part in the injury,” a statement shared by the sanctuary on social media said. Murphy lived in the sanctuary's Avian Avenue exhibit area and rose to prominence in 2023 when he incubated a rock. His instincts were rewarded when he was allowed to foster an injured eaglet that he nurtured back to health. The eaglet was eventually released back to the wild and another eaglet was entrusted to Murphy's care. The second eaglet is expected to be released into the wild this summer.“In honor of Murphy’s legacy, we plan to name the eventual eagle fostering aviary Murphy’s Manor, so that we can continue to remember him for decades to come,” the sanctuary's statement added.Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See - Feb. 2025

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