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What’s Next for NV Energy’s Greenlink After Feds Reject Initial Environmental Analysis?

In a rare move that could delay progress on NV Energy’s large-scale transmission line planned for the Highway 50 corridor, the federal Bureau of Land Management has ordered its Nevada office to address some environmental groups’ protests against the project

In a rare move that could delay progress on NV Energy’s large-scale transmission line planned for the Highway 50 corridor, the federal Bureau of Land Management has ordered its Nevada office to address some environmental groups’ protests against the project.In May, the BLM’s Nevada State Office released its environmental report for the Greenlink North project, as well as a proposed amendment to the resource management plan for the area. Various conservation and wildlife groups and Lander County immediately filed three administrative objections to the report, which needs to be finalized before construction can begin on the multibillion dollar project. Protesters raised nine issues, and last month, the federal BLM sided with them on four.“All of the protest letters contained a valid protest issue,” according to the federal BLM.The federal agency remanded the protest areas back to Nevada State BLM Director John Raby “for consideration, clarification, further planning, or other appropriate action to resolve this protest issue.”The protests include how the project would affect greater sage-grouse populations, a species in a sharp decline that has flirted with a listing on the federal endangered species list. Currently, under certain conditions, high-voltage transmission lines must be excluded from critical sage-grouse habitat areas; the project is proposed to cut through 162 miles of critical habitat. “Instead of conforming to the existing resource management plans across central Nevada, BLM is pushing to amend plans and ram this huge transmission project through important sage-grouse areas,” according to Laura Cunningham, California director of Western Watersheds Project.The decision by the federal BLM to side with the protesters is rare, said Kevin Emmerich, co-founder of conservation group Basin and Range Watch. Emmerich estimates he has filed more than 50 protests with the bureau, but this is the first to succeed.Greenlink North is a proposed 525 kilovolt transmission line slated to span from Ely to near Yerington, including the construction of two new substations. It would run along Highway 50, one of the most remote and undeveloped areas in the nation.The area is “one of the most unspoiled and stunning regions of the Great Basin,” Emmerich said. The project is one piece of a three-prong transmission line that will span the state. At completion, it would connect to the still-under-construction Greenlink West, running from Reno to Las Vegas, and the One Nevada transmission line, which runs from Ely to Las Vegas.Greenlink West, which is under construction, is expected to be in service by May 2027. Construction of Greenlink North is slated to begin in January 2027, with the line in service by late 2028. A final record of decision on the project was originally slated to be issued in October; now, the state BLM will need to draft a supplemental environmental impact statement. Patrick Donnelly, Great Basin director for the Center for Biological Diversity, told The Nevada Independent that the process could take months. “This is a major delay,” he said.NV Energy spokesperson Meghin Delaney said in an email that project approval and permits are on schedule to be completed before the 2027 construction date. “Our team is monitoring the process closely and will make any necessary adjustments to meet the project’s in-service date without sacrificing safety or quality,” Delaney wrote. Sage-grouse protections and visual effects at issue While Greenlink started as a project to align with 2019 legislation calling for the construction of a high-powered transmission line in the state, it has grown into a sprawling utility corridor — more than 100,000 acres of solar and wind energy applications have been submitted along the Greenlink North route.Protesters argued that the combination of the transmission line and ensuing energy development around the corridor will harm the region’s imperiled greater sage-grouse, as well as damage the scenic nature of the region. The four areas in which the feds agreed with the protesters are:1. Visual resources: Protesters argued the state BLM violated the Federal Land Policy and Management Act by failing to consider the project’s effects on the area’s visual resources. The agency does not have regulations covering the management of visual resources on public lands; instead, the agency uses internal guidance. “We have been asking the BLM to be in better compliance with their own visual resource management guidelines for 15 years,” Emmerich told The Indy. “This is the first time they actually listened in Nevada.”2. Avoidable degradation: Protesters argued that the “BLM failed to examine in detail any alternative that would meaningfully reduce impacts to greater sage-grouse.” The feds agreed, stating that the existing Greenlink North documents do “not offer an explanation of whether the proposed … amendments to greater sage-grouse management will cause unnecessary or undue degradation.” 3. Conformance to planning regulations: Protesters claimed that Greenlink North’s existing environmental documents do not conform with the underlying land use plans, including guiding documents for management of greater sage-grouse. 4. Failure to consider alternatives: The groups claim that the state BLM violated the National Environmental Policy Act by failing to consider a reasonable range of alternatives, including taking a different route than the one proposed by NV Energy, as well as changes to seasonal restrictions on sage-grouse winter range. “Not far to the north, a rail line and Interstate 80 already traverse this east-west route with major disturbances that would absorb a transmission line seemingly unnoticed to wildlife,” representatives of Lander County wrote. “The failure to prioritize such alternatives in the planning process reflects inadequate consideration of less harmful options.”This story was originally published by The Nevada Independent and distributed through a partnership with The Associated Press.Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See – December 2025

A “scientific sandbox” lets researchers explore the evolution of vision systems

The AI-powered tool could inform the design of better sensors and cameras for robots or autonomous vehicles.

Why did humans evolve the eyes we have today?While scientists can’t go back in time to study the environmental pressures that shaped the evolution of the diverse vision systems that exist in nature, a new computational framework developed by MIT researchers allows them to explore this evolution in artificial intelligence agents.The framework they developed, in which embodied AI agents evolve eyes and learn to see over many generations, is like a “scientific sandbox” that allows researchers to recreate different evolutionary trees. The user does this by changing the structure of the world and the tasks AI agents complete, such as finding food or telling objects apart.This allows them to study why one animal may have evolved simple, light-sensitive patches as eyes, while another has complex, camera-type eyes.The researchers’ experiments with this framework showcase how tasks drove eye evolution in the agents. For instance, they found that navigation tasks often led to the evolution of compound eyes with many individual units, like the eyes of insects and crustaceans.On the other hand, if agents focused on object discrimination, they were more likely to evolve camera-type eyes with irises and retinas.This framework could enable scientists to probe “what-if” questions about vision systems that are difficult to study experimentally. It could also guide the design of novel sensors and cameras for robots, drones, and wearable devices that balance performance with real-world constraints like energy efficiency and manufacturability.“While we can never go back and figure out every detail of how evolution took place, in this work we’ve created an environment where we can, in a sense, recreate evolution and probe the environment in all these different ways. This method of doing science opens to the door to a lot of possibilities,” says Kushagra Tiwary, a graduate student at the MIT Media Lab and co-lead author of a paper on this research.He is joined on the paper by co-lead author and fellow graduate student Aaron Young; graduate student Tzofi Klinghoffer; former postdoc Akshat Dave, who is now an assistant professor at Stony Brook University; Tomaso Poggio, the Eugene McDermott Professor in the Department of Brain and Cognitive Sciences, an investigator in the McGovern Institute, and co-director of the Center for Brains, Minds, and Machines; co-senior authors Brian Cheung, a postdoc in the  Center for Brains, Minds, and Machines and an incoming assistant professor at the University of California San Francisco; and Ramesh Raskar, associate professor of media arts and sciences and leader of the Camera Culture Group at MIT; as well as others at Rice University and Lund University. The research appears today in Science Advances.Building a scientific sandboxThe paper began as a conversation among the researchers about discovering new vision systems that could be useful in different fields, like robotics. To test their “what-if” questions, the researchers decided to use AI to explore the many evolutionary possibilities.“What-if questions inspired me when I was growing up to study science. With AI, we have a unique opportunity to create these embodied agents that allow us to ask the kinds of questions that would usually be impossible to answer,” Tiwary says.To build this evolutionary sandbox, the researchers took all the elements of a camera, like the sensors, lenses, apertures, and processors, and converted them into parameters that an embodied AI agent could learn.They used those building blocks as the starting point for an algorithmic learning mechanism an agent would use as it evolved eyes over time.“We couldn’t simulate the entire universe atom-by-atom. It was challenging to determine which ingredients we needed, which ingredients we didn’t need, and how to allocate resources over those different elements,” Cheung says.In their framework, this evolutionary algorithm can choose which elements to evolve based on the constraints of the environment and the task of the agent.Each environment has a single task, such as navigation, food identification, or prey tracking, designed to mimic real visual tasks animals must overcome to survive. The agents start with a single photoreceptor that looks out at the world and an associated neural network model that processes visual information.Then, over each agent’s lifetime, it is trained using reinforcement learning, a trial-and-error technique where the agent is rewarded for accomplishing the goal of its task. The environment also incorporates constraints, like a certain number of pixels for an agent’s visual sensors.“These constraints drive the design process, the same way we have physical constraints in our world, like the physics of light, that have driven the design of our own eyes,” Tiwary says.Over many generations, agents evolve different elements of vision systems that maximize rewards.Their framework uses a genetic encoding mechanism to computationally mimic evolution, where individual genes mutate to control an agent’s development.For instance, morphological genes capture how the agent views the environment and control eye placement; optical genes determine how the eye interacts with light and dictate the number of photoreceptors; and neural genes control the learning capacity of the agents.Testing hypothesesWhen the researchers set up experiments in this framework, they found that tasks had a major influence on the vision systems the agents evolved.For instance, agents that were focused on navigation tasks developed eyes designed to maximize spatial awareness through low-resolution sensing, while agents tasked with detecting objects developed eyes focused more on frontal acuity, rather than peripheral vision.Another experiment indicated that a bigger brain isn’t always better when it comes to processing visual information. Only so much visual information can go into the system at a time, based on physical constraints like the number of photoreceptors in the eyes.“At some point a bigger brain doesn’t help the agents at all, and in nature that would be a waste of resources,” Cheung says.In the future, the researchers want to use this simulator to explore the best vision systems for specific applications, which could help scientists develop task-specific sensors and cameras. They also want to integrate LLMs into their framework to make it easier for users to ask “what-if” questions and study additional possibilities.“There’s a real benefit that comes from asking questions in a more imaginative way. I hope this inspires others to create larger frameworks, where instead of focusing on narrow questions that cover a specific area, they are looking to answer questions with a much wider scope,” Cheung says.This work was supported, in part, by the Center for Brains, Minds, and Machines and the Defense Advanced Research Projects Agency (DARPA) Mathematics for the Discovery of Algorithms and Architectures (DIAL) program.

Tunisians Revive Protests in Gabes Over Pollution From State Chemical Plant

By Tarek AmaraTUNIS, Dec 17 (Reuters) - Around 2,500 ‌Tunisians ​marched through the coastal city ‌of Gabes on Wednesday, reviving protests over...

TUNIS, Dec 17 (Reuters) - Around 2,500 ‌Tunisians ​marched through the coastal city ‌of Gabes on Wednesday, reviving protests over pollution from a ​state-owned phosphate complex amid rising anger over perceived failures to protect public health.People chanted ‍mainly "Gabes wants to live", on ​the 15th anniversary of the start of the 2011 pro-democracy uprising that sparked ​the Arab ⁠Spring movement against autocracy.The protest added to the pressure on President Kais Saied’s government, which is grappling with a deep financial crisis and growing street unrest, protests by doctors, journalists, banks and public transport systems. The powerful UGTT union has called ‌for a nationwide strike next month, signalling great tension in the country. The ​recent ‌protests are widely seen ‍as one ⁠of the biggest challenges facing Saied since he began ruling by decree in 2021.Protesters chanted slogans such as "We want to live" and "People want to dismantle polluting units", as they marched toward Chatt Essalam, a coastal suburb north of the city where the Chemical Group’s industrial units are located."The chemical plant is a fully fledged crime... We refuse to ​pass on an environmental disaster to our children, and we are determined to stick to our demand,” said Safouan Kbibieh, a local environmental activist.Residents say toxic emissions from the phosphate complex have led to higher rates of respiratory illnesses, osteoporosis and cancer, while industrial waste continues to be discharged into the sea, damaging marine life and livelihoods.The protests in Gabes were reignited after hundreds of schoolchildren suffered breathing difficulties in recent months, allegedly caused by toxic fumes from a plant converting phosphates into phosphoric ​acid and fertilisers.In October, Saied described the situation in Gabes as an “environmental assassination”, blaming policy choices made by previous governments, and has called for urgent maintenance to prevent toxic leaks.The protesters reject the temporary measures and ​are demanding the permanent closure and relocation of the plant.(Reporting by Tarek Amara, editing by Ed Osmond)Copyright 2025 Thomson Reuters.Photos You Should See – December 2025

‘Everything is worse since Drax came here’: US residents say wood-pellet plant harming their town

Residents of Gloster, Mississippi, are suing plant that exports wood pellets to UK and Europe. Company says it is reducing emissionsWhen Helen Reed first learned about the bioenergy mill opening in her hometown of Gloster, Mississippi, the word was it would bring jobs and economic opportunities. It was only later that she learned that activity came with a cost: the Amite Bioenergy mill, opened in 2014 by British energy giant Drax, emits large – and sometimes illegal – quantities of air pollutants, including methanol, acrolein and formaldehyde, which are linked to cancers and other serious illnesses.“When I go out, I can’t hardly catch my breath,” Reed said. “Everything is worse since Drax came here.” Continue reading...

When Helen Reed first learned about the bioenergy mill opening in her hometown of Gloster, Mississippi, the word was it would bring jobs and economic opportunities. It was only later that she learned that activity came with a cost: the Amite Bioenergy mill, opened in 2014 by British energy giant Drax, emits large – and sometimes illegal – quantities of air pollutants, including methanol, acrolein and formaldehyde, which are linked to cancers and other serious illnesses.“When I go out, I can’t hardly catch my breath,” Reed said. “Everything is worse since Drax came here.”The facility churns out billions of wood pellets each year to meet surging overseas demand for “sustainable biomass”, a renewable alternative to coal.The Amite BioEnergy wood pellet production facility in Gloster. Photograph: Kathleen Flynn/For the GuardianNow, Gloster residents are suing Drax, alleging that the company unlawfully exposed people to “massive amounts of toxic pollutants”, according to the October filing.Drax, one of the world’s biggest players in the booming biomass industry, has turned the UK’s largest coal power station, a mile-wide complex in rural Yorkshire, into what is essentially an immense wood stove fueled with Mississippi and Louisiana pine. The company, whose Yorkshire plant is among the UK’s largest single carbon emitters, has faced scrutiny and lawsuits in the UK for pollution and workplace safety violations.Its operations in the US are also beginning to draw legal challenges. “This case is about holding a multi-billion-dollar foreign corporation accountable for poisoning a small Mississippi community,” said Letitia Johnson, an attorney representing the group, in a statement.When the Gloster plant opened, many in the low-income, majority-Black town of 850 people were optimistic that it would revitalize the local economy. But some residents say it has brought little more than noise, dust and toxic air.Michelli Martin, a Drax spokesperson, said the company is making strides to reduce pollution.“The safety of our people and the communities in which we operate is our priority, and we take our environmental responsibilities very seriously,” Martin said. “As a company dedicated to sustainable energy production, high standards of safety and environmental compliance are always our top priority.”Drax’s Gloster plant is one of 30 large pellet mills – including five belonging to Drax – in the US south. Inside these plants, stacks of logs are stripped of bark, shredded, cooked in 1,000-degree tumble dryers, pulverized in hammermills, and pressed into pellets destined mostly for export. Photograph: Kathleen Flynn/The GuardianPellet exports from the US have quintupled, growing from 2 million tons in 2012 to about 10.5 million tons in 2023, according to the US Industrial Pellet Association. Most pellets are sent to the UK and Europe, where they are classified as a renewable energy source on par with solar and wind, making wood-burning eligible for massive subsidies, low-interest loans and other government incentives.But researchers say the drying, crushing and cooling processes at the mills emit air pollution that could be contributing to nearby residents’ health problems.“Air pollution is magnitudes higher in Gloster, especially with VOCs [volatile organic compounds],” said Erica Walker, a Brown University epidemiologist. She and a team of researchers set up air pollution monitors in the town and found clouds of VOCs concentrated around the mill and neighboring residential areas.“Literally, my first question when I visited Gloster was: ‘Who zoned this?’” she said of the mill, which abuts a mobile home park and is less than a mile from a children’s day care center. “It’s right out in the open. No acoustical barriers, no buffer of trees. It was shocking to see it operating right in the middle of the community.” Photograph: Kathleen Flynn/For the GuardianGloster mayor Jerry Norwood said small, remote mill towns like his can’t thrive without plants like Drax’s. “All of these small towns, we have nothing,” he said. “If big business don’t commit the big dollars, we don’t have the tax base. We have to have that for community growth.”Norwood did not respond to emailed questions about pollution or residents’ lawsuits against Drax, but in an October op-ed published before the suit was filed he wrote: “Those who oppose Drax and some in the media have made our town out to be some sort of smog-filled nightmare, but that is simply false. Along with my friends and neighbors who live, work and play in Gloster, I can assure you we breathe clean air.”Gloster residents, once hopeful that the mill would reverse the town’s decline – it has lost more than 20% of its population since 2000 – say it is only hastening it. Many say their experience should come as a warning to other communities.Longtime resident Carmella Wren-Causey, a plaintiff in the lawsuit against Drax, said she started using an oxygen tank in 2020 after developing breathing problems she blames on the mill. “We’re being poisoned slowly, right before our eyes,” she said through tears.“God gave me breath when he gave me life,” she said. “Drax took it away.”Carmella Wren-Causey in her car. Photograph: Kathleen Flynn/The GuardianA history of violationsDrax, one of the world’s largest pellet companies, has racked up nearly $6m in violations for its operations in Mississippi and Louisiana over the past four years.In 2020, the Mississippi department of environmental quality, following years of prodding from environmental groups, found the company’s Gloster mill was emitting an average of 796 tons of VOCs per year – more than three times the limit allowed under the mill’s permit – and fined the company $2.5m.Louisiana officials, too, found that Drax had been breaking several of its air quality rules, and in 2022 reached a settlement in which Drax paid $3.2m but admitted no wrongdoing.The Drax power station in North Yorkshire. Photograph: Gary Calton/The ObserverThe settlement was the largest in more than a decade for Louisiana environmental officials, but it appears to be the extent of any serious efforts to rein in Drax’s pollution in Louisiana, said Patrick Anderson, an attorney who, when working with the Environmental Integrity Project, reviewed Drax’s pollution history in Mississippi and Louisiana.The Louisiana department of environmental quality did not respond to requests for comment.Matt White, vice-president of Drax’s North American operations, said that Drax has since made several upgrades and changes to reduce emissions, including installing a thermal oxidizer at the Gloster mill that they say essentially burns away VOCs.“We take our environmental responsibilities and compliance extremely seriously,” White said. “Compliance is at the foundation of everything we do, and we have invested a lot of hours and resources with the goal of continuously improving our operations.”People support a Drax protester who was detained by UK police in 2024. Photograph: Gary Calton/The ObserverDespite the upgrades and repeated promises to do better, Drax continued to incur fines for pollution violations. In late 2024, Drax agreed to pay $225,000 for exceeding the Gloster mill’s limits for hazardous air pollutants, particularly for methanol, which were recorded at nearly double the permitted threshold, according to the MDEQ.In April 2025, amid complaints from residents, the MDEQ denied Drax permission to increase its emissions. Its reversal of that decision in October – allowing Drax’s Gloster mill to become a “major source” of hazardous air pollutants – triggered the lawsuit against the company.A representative from the MDEQ declined to comment on the lawsuit, but said: “MDEQ takes seriously its obligations to protect human health and the environment.”The $6m in penalties over the past four years are a drop in the bucket for Drax, Anderson said. The company raked in $1.4bn in profits in 2024 and about 1.3bn in 2023, according to Drax’s adjusted earnings reports.“Drax is so profitable and so subsidized that it powers through all of this,” Anderson said. “The fines don’t hurt their bottom line.”Researchers have found several signs that these pollutants are having real consequences.The air monitors that Walker and her team installed detected unexpected spikes in VOCs during the night, something that lines up with residents’ complaints of foul odors and difficulty breathing after dark.“At night, it’s always worse,” Gloster resident Robert Weatherspoon said. “It smells disgusting.”Robert Weatherspoon once jogged daily but now struggles to breathe. Photograph: Kathleen Flynn/The GuardianThis could indicate pollution “dumping” during certain hours, Walker said.Drax disputed the dumping claim. “Any suggestion that we manipulate our operations to avoid complaints or detection is completely false,” Martin said.Walker’s team also found that the closer children lived to the mill, the heavier they were. “It fits with some of the things we heard at community meetings,” Walker said. “You don’t want your kids playing outside because the air’s polluted. If they’re staying inside, how are they getting physical activity?”It’s not just the hazardous chemicals that are keeping residents up at night.Glen Henderson, a resident of Urania, Louisiana, whose Drax mill opened in 2017, described near-constant clanging and banging from the mill. Lights glow over the tops of an ever-thinning band of trees between his home and the mill, nearly a mile away, and at daybreak, a powdery substance often coats his truck.“This noise and dust – what are the long-term effects of all that?” he asked.In 2024, Walker and a team of researchers from the University of Mississippi and Drexel University published a study based on a noise exposure assessment in Gloster.Children walk home after being dropped off by their school bus in Gloster. Photograph: Kathleen Flynn/For the GuardianThey found the mill’s operations and truck traffic sometimes topped 70 decibels, whereas the comparably sized Mississippi town of Mendenhall, which does not have a pellet mill, was typically 10 decibels quieter.“That’s an enormous difference,” Walker said. “It’s like turning a faucet into Niagara Falls.”Martin said Drax follows federal noise abatement guidelines and insulates buildings to mitigate sound levels.“Pellet mills generate noise as part of the manufacturing process from the operation of equipment,” Martin said. “The noise from facility operation is consistent with the surrounding industrial plants and does not contribute to significant impacts above existing background noise.”A growing body of research has linked chronic noise exposure to high blood pressure, heart attacks, anxiety and depression.“Noise disrupts your sleep, disrupts your mood, and sets off a stress response that’s like your ‘fight or flight’ response, which makes your body ready to fight a threat or run from it,” Walker said. “The constant stimulation of that response can cause all kinds of health problems.”Community leader Krystal Martin shows a photo of the Gloster facility. Photograph: Kathleen Flynn/The GuardianThe company recently expanded a mill in Alabama, established a North American headquarters in Monroe, Louisiana and opened an office in Houston to lead its carbon capture and sequestration enterprises.Over the past six years, the Urania mill alone has produced enough pellets to fill the New Orleans Superdome nearly twice.Yet several residents in Gloster and Urania said that output has not revitalized their economies. Each of the three large Drax mills in Louisiana and Mississippi employs between 70 and 80 people, a fraction of the workforce supported by many past mills. In Gloster, only 15% of Drax’s employees reside in the community, according to the company. Photograph: Kathleen Flynn/For the GuardianMabel Williams, a lifelong resident of Gloster, never wanted a Drax job, but she had high hopes that the mill would employ enough people to breathe life back into downtown. Walking along a largely vacant Main Street, her memories crowded every empty lot and darkened window.“There were people everywhere,” said Williams, 87, who spent decades cleaning the homes of the white residents who have mostly moved away. “This was a clothing store and that was a jewelry store owned by a German man. And over there, my mamma worked at the cafe.” Across the train tracks was the Black business district, with four barbershops, restaurants and music venues, she said. “I get excited when I think about what Gloster had,” she said.Williams still has faith that Gloster is capable of a revival, but she no longer believes it will be thanks to Drax.“Drax is making so much money,” she said. “They’ve got to spend that money some kind of way, but they’re not spending it here.”A longer version of this story is forthcoming from Verite News

This Year in Conservation Science: Whales, Birds, and Killer Roads

We asked conservation researchers around the world to send us their favorite papers of 2025. They address the planet’s most pressing problems — and important solutions. The post This Year in Conservation Science: Whales, Birds, and Killer Roads appeared first on The Revelator.

The road to hell is paved with … more roads. That seems to be the message of one of this year’s most striking conservation papers. The research, published this April in the journal Current Biology, linked the “explosive growth” of secondary roads — those that branch off what the papers call “first-cut roads” — to tropical deforestation around the world. These aren’t the typical suburban Streets, Drives, and Courts that spring up around developments. They’re “illicit, unplanned, often illegal roads,” says the paper’s senior author, William Laurance, distinguished research professor at James Cook University. The research was led by ecologist Jayden Engert. “The numbers are almost crazy,” says Laurance. “For example, we found an enormous proliferation of secondary roads in the Congo Basin, Amazon, and New Guinea — especially in the Amazon,” where every mile of official roads generated around 50 miles of unofficial roads. “These secondary roads are opening tropical forest frontiers like a flayed fish, exposing them to illegal land-grabbers, loggers, poachers, miners, and illegal drug producers whose activities are driving rampant forest loss.” Sadly, Laurance says, these secondary roads don’t exist on official maps and they’re hard for governments to control. But research like this helps to document them — and that’s the first step to addressing the problem. That can also be said of the other new papers and reports sent to us this month by conservation experts around the world who sent us their best or favorite research from 2025. Forests Connect Us Other research also called out the importance of forests — this time connecting the dots between places like New York City’s Central Park and other North American forests, especially rapidly disappearing landscapes in Central America. “It’s easy to think of migratory birds as ‘ours,’ tied to a particular state or region, but their survival depends just as much on distant habitats far from home,” says the study’s lead author, Anna Lello-Smith of the World Conservation Society. “Using millions of bird observations from the Cornell Lab of Ornithology’s eBird platform, our study shows that eastern North America’s forest birds rely on Central America’s last large tropical forests — the Five Great Forests — to survive migration and the winter. Because billions of migratory birds funnel into the narrow land bridge of Central America, these forests hold staggering concentrations of warblers, thrushes, and hawks — in some cases nearly half their global populations — yet several are rapidly disappearing due to illegal ranching and fires.” The study identified what it called “sister landscapes” — sites across the U.S. and Canada that are linked to the Five Great Forests by shared bird species. Lello-Smith says this offers “a roadmap for connecting bird lovers and communities across the hemisphere to help protect and restore the tropical forests that keep our birds in the sky.” Three From the Ocean Shifting from the skies to the seas, frequent Revelator contributor and shark scientist David Shiffman shared new research by Mark E. Bond and other experts about how the world has improved conservation and management of sharks and related species. “The ocean science and conservation community has invested a lot of time, energy, and resources into protecting sharks via the Convention on International Trade in Endangered Species,” says Shiffman, who was not involved in this research. “We’ve seen promising signs that this approach is working for years, but Bond et al. is the first global-scale analysis of the impacts of CITES protections on shark management regulations around the world. They found that several countries who previously had no shark conservation or management regulations of any kind made their first regulations — a huge step. They also found improvements in regulations of more than half of shark fishing and exporting nations, including many that are substantive and important. There is no silver bullet to complex conservation challenges, but these results are clear that for many shark species in many countries, CITES helps.” All ocean species face an ongoing and growing threat from human activities, though. That’s why a dozen conservation experts — including Callum M. Roberts, Sylvia Earle, and Stuart Pimm — recently penned a commentary in Nature calling for an end to extraction in the high seas in perpetuity. Such a move, the authors argued, would protect species and the planet from increased fishing, deep-sea mining, and other threats. Pimm called it his “most important contribution” of the past year. On a more specific ocean note, one recent paper looked at critically endangered Rice’s whales, who scientists identified less than five years ago. Unfortunately the news coverage of that discovery failed to shift the needle on the forces endangering the whales. “My co-author and I took a communication and media studies approach to research Rice’s whale conservation and management and intentionally included insights that anyone with an interest in conservation can use,” says Marcus B. Reamer, a lecturer at the Rosenstiel School of Marine, Atmospheric, and Earth Science. “We highlight the essential role of communication and media in conservation and offer actionable strategies for navigating media systems and communicating effectively in challenging political and ecological environments, providing a roadmap for individuals and organizations working on conservation challenges across ecosystems and geographies. It’s a unique direction for marine mammal conservation research — and timely given ongoing efforts to weaken environmental laws and ramp up oil and gas production in the Gulf of Mexico.” Indigenous Science Two researchers called out the importance of traditional Indigenous knowledge and related systems. First, Liber Ero Postdoctoral Fellow Sara E. Cannon sent a paper about “a respectful and transparent way to uphold ancestral Indigenous Pacific salmon stream caretaking knowledge, longstanding Indigenous rights and relationships to land and waters, and our joint responsibilities to care for these watersheds.” “This paper is an essential read for conservation practitioners and researchers across Canada,” says Cannon, who was not involved in the research. “It recenters Indigenous laws, governance systems, and ancestral caretaking knowledge as foundational to restoring Pacific salmon and their watersheds. By documenting Indigenous-led restoration initiatives across British Columbia, it offers tangible, place-based examples of how ethical collaboration and Indigenous leadership can guide more just and sustainable approaches to salmon recovery. It invites readers to rethink restoration not only as ecological repair, but as the renewal of relationships, rights, and responsibilities between people and salmon.” Aerin Jacob, director of science and research at the Nature Conservancy of Canada, included a paper she coauthored about navigating the divide between science and policy. “Environmental decision-makers often rely on natural science or familiar expert networks while feeling uncertain about how to meaningfully include Indigenous knowledge, social science, or local experience,” Jacob says. “This can lead to decisions that are less effective and less supported. Our study examines what Canadian science–policy professionals consider ‘good evidence,’ why some evidence gets used or overlooked, and how to build more balanced, credible decision-making. I like this paper because it’s frank about challenges while also focusing on solutions.” And as a reminder that important science can come in many forms, Jacob also sent a report (funded in part by her organization) entitled “A Guide to Choosing and Using Community-Based Data Management Systems for Indigenous Land-Based Programs.” “Around the world, Indigenous guardians collect vital information about nature and people — including photos, maps, datasets, stories, and more,” Jacob says. “It’s crucial to keep that information organized, secure, and aligned with community values. I’m a big fan of this new work from northern Canada for two reasons. First, it supports guardians and other land-based program staff to decide what matters most to them and how they want to proceed. Second, it helps external parties to be better partners in the technical and governance aspects of data, software, funding, infrastructure, staffing, and more.” Quick Hits Chris Shepherd, another frequent Revelator contributor and source, sent an interesting (and worrying) paper about Canada’s role in the trade of live monitor lizards. “Very little is known about the reptile trade in Canada, or about Canada’s role in the international wildlife trade at all,” he says. “Here we focused on the trade in monitor lizards in Canada and found Canada to be a major player. This issue is largely unknown in Canada, and we are only just starting to scratch the surface.” Dominick A. DellaSala, senior conservation scientist associate at the Conservation Biology Institute and another Revelator contributor, sent a new paper he coauthored that suggested a conservation opportunity in the Montana’s Yaak River Watershed. The paper “provides new protected area assessments for the Northern Rockies and identifies proposed climate refugia based on climate modeling and GAP analyses methods,” he says. Has the world failed the Sumatran rhino? K Yoganand of the Malaysian organization Bringing Back Our Rare Animals sent a coauthored paper published in the journal Pachyderm detailing the status, history, and fraught future of this critically endangered species. “We present a sobering case study of how decades of missteps, indecision, and cognitive biases have driven the Sumatran rhinoceros to the brink of extinction,” Yoganand writes. “For anyone committed to preventing future extinctions, the paper offers both a cautionary tale and a roadmap for how conservation must adapt to avoid repeating these failures.” Finally citizen scientist Paula Borchardt wrote to remind us that everyday citizens play an important, ongoing role in collecting data about the natural world. “I’m an artist, journalist, naturalist, and citizen scientist who publishes a weekly blog sharing my art and stories about natural history, mostly about my Tucson, Arizona, backyard and the environment here in the Sonoran Desert.” She pointed out one recent entry, “describing my husband’s and my project to grow saguaros from seed, to help an effort by several Tucson-based organizations to support saguaros and combat their declining numbers.” The striking headline: “We have 1,518 saguaros on our patio.” That’s it for this year’s “This Year in Conservation Science.” But the new year is around the corner, and with it come 12 more months of new, exciting, important research about endangered species, habitats, environmental justice, climate change, and related topics. Keep reading The Revelator for coverage of that new science, and stay in touch if you publish research you think our readers would enjoy or could use in their own efforts to preserve life on Earth. Republish this article for free! Read our reprint policy. The post This Year in Conservation Science: Whales, Birds, and Killer Roads appeared first on The Revelator.

After the L.A. fires, heart attacks and strange blood test results spiked

A new study is the latest of several recent research papers documenting the physical toll of January's fires.

In the first 90 days after the Palisades and Eaton fires erupted in January, the caseload at Cedars-Sinai Medical Center’s emergency room looked different from the norm.There were 46% more visits for heart attacks than typically occured during the same time period over the previous seven years. Visits for respiratory illnesses increased 24%. And unusual blood test results increased 118%.These findings were reported in a new study published Wednesday in the Journal of the American College of Cardiology. The study, part of a research project documenting the fires’ long-term health effects, joins several recent papers documenting the disasters’ physical toll.While other U.S. wildfires have consumed more acres or cost more lives, the Palisades and Eaton fires were uniquely dangerous to human health because they burned an unusual mix of materials: the trees, brush and organic material of a typical wildfire, along with a toxic stew of cars, batteries, plastics, electronics and other man-made materials.There’s no precedent for a situation that exposed this many people to this kind of smoke, the paper’s authors said.“Los Angeles has seen wildfires before, it will see wildfires again, but the Eaton fire and the Palisades fire were unique, both in their size, their scale and the sheer volume of material that burned,” said Dr. Joseph Ebinger, a Cedars-Sinai cardiologist and the paper’s first author. The team did not find a significant increase in the overall number of visits to the medical center’s emergency room between Jan. 7, the day the fires began, and April 7. The department recorded fewer in-person visits for mental health emergencies and chronic conditions during that time compared to the same time period in earlier years, said Dr. Susan Cheng, director of public health research at Cedars-Sinai and the study’s senior author.The increase in visits for acute cardiovascular problems and other serious sudden illnesses made up the difference. The study team also looked at results from blood tests drawn from patients visiting the ER for serious physical symptoms without immediate explanation — dizziness without dehydration, for example, or chest pains not caused by heart attacks.Their blood tests returned unusual results at a rate more than double that seen in previous years. These atypical numbers cut across the spectrum of the blood panel, Cheng said. “It could be electrolyte disorder, change in protein levels, change in markers of kidney or liver function.”The rate of unusual test results held steady through the three-month period, leading the team to conclude that exposure to the fires’ smoke “has led to some kind of biochemical metabolic stress in the body that likely affected not just one but many organ systems,” Cheng said. “That’s what led to a range of different types of symptoms affecting different people.”Joan Casey, an environmental epidemiologist at the University of Washington who was not part of the Cedars-Sinai team, noted that the study found health effects lasting over a longer period than similar studies have.Three months “is a substantial length of time to observe elevated visits, as most studies focused on acute care utilization following wildfire smoke exposure find increased visit counts over about a weeklong period,” Casey said. Her own research found a 27% increase in outpatient respiratory visits among Kaiser Permanente Southern California members living within 12.4 miles of the burn zones in the week following the fires.“The L.A. fires were such a severe event, including not only smoke, but also evacuation and substantial stress in the population, that effects may have lingered longer,” Casey said.Thirty-one people are known to have died as a direct result of injuries sustained in the fires. But researchers believe that when taking into account deaths from health conditions worsened by the smoke, the true toll is significantly higher.A research letter published earlier this year in the Journal of the American Medical Assn. calculated that there were 440 excess deaths in L.A. County between Jan. 5 and Feb. 1. That paper looked at deaths caused by a variety of factors, from exposure to air pollution to disrupted healthcare as a result of closures and evacuations.On Tuesday, a team from Stanford University published itsprojection that exposure to the fires’ smoke, specifically, led to 14 deaths otherwise unaccounted for.Wildfire is a major source of fine particulate pollution, bits measuring 2.5 microns or less in diameter that are small enough to cross the barriers that separate blood from the brain and the lungs’ outer branches.Compared with other sources, wildfire smoke contains a higher proportion of ultrafine particles miniscule enough to penetrate the brain after inhalation, Casey told The Times earlier this year. The smoke has been linked to a range of health problems, including dementia, cancer and cardiovascular failure.In the last decade, increasing numbers of wildfires in Western states have released enough fine particulate pollution to reverse years’ worth of improvements under the Clean Air Act and other antipollution measures.

How the devil is in the details of greener new jobs

Building a skilled workforce for a sustainable future has been much discussed in climate proposals. Now researchers are figuring out what green jobs actually entail, and how to support them.

What makes a job sustainable — both eco-friendly and liable to stick around? That question is at the center of new research from the Dukakis Center at Northeastern University’s Policy School, commissioned by the City of Boston to help meet its ambitious Climate Action Plan goals.  The plan lays out a road map for transitioning the city off fossil fuels, achieving citywide carbon neutrality by 2050, and making the city resilient to a future changing climate. It aims to decarbonize buildings, electrify the transportation system, upgrade the city’s grid, and build coastal resiliency. But getting there depends on people — who’s going to do the work, and how will they get trained? “Climate plans are like a jigsaw puzzle,” said Joan Fitzgerald, a professor of public policy at Northeastern who led the research. “And the last piece to be put in place often is workforce development.” For Boston, that last puzzle piece comes with the release of the City’s Climate Ready Workforce Action Plan, which marks the culmination of a year-long research project conducted in partnership with the Dukakis Center along with the Burning Glass Institute, TSK Energy Solutions, and Community Labor United. Additionally, the plan incorporates feedback from 51 advisors, including city and state officials, training and education partners, labor partners, employer partners, and community leaders.  One of the biggest challenges researchers encountered was how to define a “green job.” Take car mechanics, for instance. Fixing a gas-guzzling car might not seem like a climate-friendly role. But as electric vehicles become more common, mechanics are more likely to be servicing them. (Still, that doesn’t necessarily mean there will be more mechanic jobs overall, according to Fitzgerald; electric cars have fewer parts and don’t need as much maintenance.) The same is true for an HVAC technician—one day they could be installing a gas furnace, and the next, an energy-efficient electric heat pump. “These examples show some of the murkiness of figuring out what a green job is,” Fitzgerald said. Professor Joan Fitzgerald presents Northeastern’s research on green workforce needs for Boston’s climate goals at a green economy workshop. Northeastern University To tackle this challenge, Northeastern made use of a novel dataset collected by the Burning Glass Institute, a data-driven think tank, to do an inventory of what jobs are needed in the green economy and what skills those occupations need. “Imagine a data set that’s hundreds of millions of individual job ads,” Stuart Andreason, the institute’s executive director, said. “We look at job postings from across the globe, identify the skills in them, and track how those skills are changing.” The researchers found that, while jobs like solar developer are undoubtedly part of the green workforce, many existing jobs could become green jobs with new or evolving skills. Construction workers might need training in energy-efficient building codes; electricians may need to understand how to install EV chargers. As the nation pivots from fossil fuels toward clean energy, green skills are becoming essential for workers across sectors. Drawing on both the Burning Glass data and other publicly available data from the Bureau of Labor Statistics, Dukakis Center Director Alicia Modestino then analyzed two key questions: How many workers are going to be needed for the projects and initiatives laid out in Boston’s Climate Action Plan? And how many of these jobs will be held by new workers entering the labor force or workers who need to be replaced due to projected retirements? Despite some of these uncertainties, it’s clear that cities such as Boston can’t be climate-ready without a climate ready workforce. “And there is a limited number of programs and slots to equip workers with the green skills that are needed,” Modestino said. “The transition from entirely carbon-based jobs to those that require green skills or become entirely ‘greened’ will be rapid … possibly creating a shortage of workers if cities do not get ahead of the curve.”  That kind of analysis helps cities like Boston understand what jobs are growing, what skills those jobs require, and how to shape workforce training accordingly. “The problem is predicting need. Is it both training new people to enter the green workforce and on-the-job training for people who are already in the labor force? That makes it hard to predict,” Fitzgerald said.  In line with the environmental justice goals of Boston’s Green New Deal, researchers looked into what career opportunities exist for the city’s disadvantaged communities. These jobs run the gamut from designing and building climate-friendly infrastructure to community engagement. Beyond identifying what green jobs were out there, Fitzgerald’s team also explored how workers can climb the career ladder and identified where training programs are falling short.  One concern: Many existing green workforce programs do not have enough funding to provide wages and support services to trainees. Once the funding ends, so does the career pipeline. “One of our recommendations is that’s where cities can help,” Fitzgerald said. “If you have an effective training program but it’s relying on funding that doesn’t allow it to pay trainees, then the city can support the wages for participants.” Despite the challenges, Boston’s Climate Ready Workforce Action Plan lays the groundwork for other cities to turn their far-reaching climate goals into real, lasting job opportunities. This report is the first of its kind, connecting Boston’s climate agenda to economic opportunity, said Oliver Sellers-Garcia, Environment Commissioner and Green New Deal Director. “Our work to fight climate change will create good-paying jobs and a more inclusive workforce in Boston,” he said. Northeastern University’s School of Public Policy and Urban Affairs (Policy School) offers master’s degrees that feature innovative, real-world explorations of our world’s most challenging climate, environmental, and sustainability issues. Through a combination of experiential learning, interdisciplinary research, and cutting-edge coursework, these programs prepare you for the next step in your career, using policy to address environmental and social justice in communities around the globe. Learn with us at our campuses in Boston, Arlington (Metro D.C.), and Oakland. LEARN MORE This story was originally published by Grist with the headline How the devil is in the details of greener new jobs on Dec 17, 2025.

How justice gets sold to the lowest bidder in rural CA

The law firm Fitzgerald, Alvarez and Ciummo has earned a nickname: The WalMart of public defense.  Over three decades, the firm has won county contracts to provide poor people with criminal defense in the state’s rural stretches. It’s done so by making aggressively low bids.  Old iterations of the firm’s website asked local politicians what […]

The front entrance of the Fitzgerald, Alvarez and Ciummo law firm in Madera on Oct. 20, 2025. Photo by Larry Valenzuela, CalMatters/CatchLight Local The law firm Fitzgerald, Alvarez and Ciummo has earned a nickname: The WalMart of public defense.  Over three decades, the firm has won county contracts to provide poor people with criminal defense in the state’s rural stretches. It’s done so by making aggressively low bids.  Old iterations of the firm’s website asked local politicians what they might do with all the money they could save on public defense: “Better schools? Better fire protection? More police? Improved roads? More parks?”  Today, nearly half of California counties pay private lawyers and firms to represent poor people in criminal cases. Most of them do it through what’s known as a “flat-fee” contract, meaning they pay a fixed amount, regardless of how many cases the attorneys handle or how much time they spend on each case.  As CalMatters investigative reporter Anat Rubin details, these arrangements so clearly disincentivize investigating and litigating cases that they’ve been banned in other parts of the country.  But they have flourished in California.  In San Benito County, for example, a state evaluation found that Ciummo attorneys barely spoke with their clients and seldom filed legal motions on their behalf.  Defendants asked them to contest the prosecution’s evidence, to interview witnesses, to do anything, really, to challenge law enforcement’s narrative of the crime. Instead, they ushered almost all of them to plea deals.  Even some law enforcement leaders — the people trying to put the Ciummo firm’s clients behind bars — are raising the alarm. They say they’re not being challenged like they should be in a functioning system.  Joel Buckingham, San Benito County District Attorney: “Police officers must make mistakes sometimes.”  Read the full story. This is the second part of Anat’s series examining the lack of key safeguards against wrongful conviction in California. Be sure to read her first piece, The Man Who Unsolved a Murder. Focus on Inland Empire: Each Wednesday, CalMatters Inland Empire reporter Aidan McGloin surveys the big stories from that part of California. Read his newsletter and sign up here to receive it. Become a member: Keep independent, trustworthy information in every Californian’s hands and hold people in power accountable for what they do, and what they don’t. Any gift makes you a member for a year, give $10+ for a limited edition tote. Please give now. Other Stories You Should Know GOP begins legal fight against Prop. 50 A “No on Prop. 50” sign at the Kern County Republican Party booth at the Kern County Fair in Bakersfield on Sept. 26, 2025. Photo by Larry Valenzuela, CalMatters/CatchLight Local On Monday the Trump administration and California Republicans made their arguments challenging Proposition 50 before a panel of federal judges, kicking off the court battle over California’s voter-approved gerrymandering efforts, write CalMatters’ Maya C. Miller and Mikhail Zinshteyn. Republicans say that Prop. 50’s congressional maps violate the 14th and 15th amendments because race, they argue, was used as a factor in determining district lines. They are seeking a preliminary injunction on the maps before Dec. 19 — the date when candidates can start collecting signatures to get on the 2026 primary ballot — to temporarily ban the use of the maps in an election. Prop. 50 supporters argue that the maps were drawn to create a partisan advantage for Democrats, and it was only incidental if the maps lent any outsized influence to certain ethnic or racial groups. Prop. 50 opponents face an uphill battle, given that the U.S. Supreme Court recently upheld Texas’ redrawn maps by overturning a lower court’s finding that the Texas GOP committed unconstitutional racial gerrymandering. Read more here. Seeking solutions to a sewage crisis A warning sign about sewage and chemical contamination is posted along the shore of Imperial Beach on Nov. 21, 2025. Photo by Adriana Heldiz, CalMatters Members of the California legislature brought together policymakers and scientists during a joint environmental committee hearing last week, which explored how the state can tackle the Tijuana River sewage crisis, reports CalMatters’ Deborah Brennan. During the hearing, lawmakers and others reviewed how neglect, failed infrastructure and industrial waste created the decadeslong environmental disaster. They discussed potential mitigating solutions such as updating air quality standards; improving working conditions for those who are exposed to the pollution; and holding companies accountable for their role in polluting the river.  State Sen. Catherine Blakespear, an Encinitas Democrat who led the hearing: “What is happening in the Tijuana River Valley is an international, environmental disaster that undermines everything that California stands for. … The sewage flowing into San Diego County’s coastline is poisoning our air and water, harming public health, closing beaches and killing marine life.” This year, the U.S. repaired and expanded a San Diego wastewater treatment plant, while Mexico repaired a plant near the border. But more work is still required, including at the Imperial Beach shoreline, which has remained closed for years. On Monday the U.S. and Mexico signed an agreement addressing the crisis.  Read more here. And lastly: Wiener’s bid for Congress State Sen. Scott Wiener during a Senate floor session at the state Capitol in Sacramento on Jan. 23, 2025. Photo by Fred Greaves for CalMatters In October state Sen. Scott Wiener announced his run for Nancy Pelosi’s congressional seat, entering a contest that highlights a broader debate over the future direction of Democratic leadership. Maya and CalMatters’ video strategy director Robert Meeks have a video segment on the San Francisco Democrat as part of our partnership with PBS SoCal. Watch it here. SoCalMatters airs at 5:58 p.m. weekdays on PBS SoCal. California Voices CalMatters columnist Dan Walters: Gov. Gavin Newsom champions pro-housing policies, but he’s tougher on Republican-leaning communities, like Huntington Beach, compared to Democratic ones, such as Marin County. A new report finds that California neighborhoods closest to oil wells and refineries disproportionately harm Latino and Black residents, underscoring how the environmental injustices of the oil age are being repackaged in the plastic economy, write Veronica Herrera and Daniel Coffee, UCLA professor and researcher, respectively.  Other things worth your time: Some stories may require a subscription to read. Dating app rape survivors file lawsuit accusing Hinge, Tinder of ‘accommodating rapists’ // The Markup Trump immigration raids take toll on child-care workers in CA and nationwide // Los Angeles Times CA sues Trump for blocking EV charging funds // The Mercury News CA lawmakers say they’ll keep pushing to regulate AI // The Sacramento Bee Newsom leads backlash to Trump’s unhinged response to Reiner killings // San Francisco Chronicle CA AG Bonta leads coalition opposing proposed collection of diversity data // EdSource National Guard troops under Trump’s command leave LA before court’s deadline // Los Angeles Times How some of LA’s biggest apartment owners avoid Section 8 tenants // Capital & Main

As oil and gas companies pivot to plastic, California neighborhoods become sacrifice zones again

As oil and gas companies pivot to plastic, certain California neighborhoods become unhealthy sacrifice zones again.

Guest Commentary written by Veronica Herrera Veronica Herrera is a professor of urban planning at UCLA Daniel Coffee Daniel Coffee is a researcher at UCLA’s Luskin Center for Innovation The fossil fuel industry is pivoting. As demand for gasoline declines, oil and gas companies are betting their future on plastic. What once powered our cars is now being refined, cracked and polymerized into bottles, packaging and single-use products that will outlive us all. This shift isn’t just a climate concern — it’s a public health crisis. Plastics are fossil fuels in another form. And the communities most exposed to their production bear the highest health burdens. A new report from the UCLA Luskin Center for Innovation on what defines a plastic-burdened community traces how this expanding plastic economy maps directly onto California’s oil and gas footprint.  Even as California celebrates its climate leadership, our neighborhoods remain entwined with the legacies of fossil fuel infrastructure. More than 2.5 million Californians live within a kilometer of an active or idle oil or gas well. There are pumpjacks in Inglewood, refineries along the Wilmington corridor and wells beside schools in Kern County.  Refinery infrastructure — much of it feeding plastic precursor production — also is heavily concentrated in Los Angeles County, the most populous region in the state. Unequal exposure The science is unequivocal: living near oil and gas development is linked to a wide array of health harms: respiratory disease, cardiovascular illness, adverse birth outcomes and elevated cancer risk. The higher odds for these conditions persist even when controlling for socioeconomic and environmental factors.  In California and beyond, research shows pollutants from drilling and refining — such as volatile organic compounds, nitrogen oxides, particulate matter and formaldehyde — degrade air quality and increase asthma, heart attack and low-birth-weight rates. The burden of these exposures falls unevenly, our analysis shows.  Neighborhoods closest to wells and refineries have far higher proportions of Latino and Black residents, lower incomes and greater health vulnerabilities. On average, for each refinery within 1.5 miles of a community, the median household income is nearly $11,000 lower, poverty rates are 5.5% higher and emergency-room visits for asthma and heart disease are significantly elevated.  The environmental injustices of the oil age are being repackaged in the plastic economy. Globally, the Organisation for Economic Co-operation and Development projects plastic production will triple by 2060. Petrochemicals already account for roughly 14% of oil use and by mid-century could drive nearly half of global oil demand. In other words, even as we transition away from burning fossil fuels, we are locking ourselves into new forms of dependence — embedded in the packaging we discard daily. Recognizing this link is critical as California prepares to implement the Plastic Pollution Mitigation Fund under Senate Bill 54, a plastics recycling and pollution prevention law signed in 2022. The fund will direct hundreds of millions of dollars from the plastics industry to communities harmed by pollution.  Administered wisely, the fund could be a catalyst for mitigating the adverse health impacts of plastics and could create a transformative shift away from plastic production, use and disposability, building on the plastic reduction efforts required of the industry under SB 54. Plastic pollution is not just about littered beaches or overflowing landfills; it begins long before a product reaches a store shelf.  If California truly intends to lead on climate and environmental justice, it must see plastic for what it is — the fossil fuel industry’s new frontier — and it must ensure that communities long treated as sacrifice zones become the first to benefit from solutions.

The U.S. is committed to cleaning up Tijuana River pollution. Will California follow through?

San Diego leaders are calling on California to take stronger action to address the ongoing environmental crisis caused by sewage and industrial pollution flowing from the Tijuana River.

In summary San Diego leaders are calling on California to take stronger action to address the ongoing environmental crisis caused by sewage and industrial pollution flowing from the Tijuana River. As Tijuana River sewage has contaminated neighborhoods in southern San Diego County, the federal government has pledged two-thirds of a billion to clean it up.  Now local lawmakers are calling on California to step up the fight against cross-border pollution, and one introduced a bill this week to revisit air quality standards for noxious gas from the river. State Sen. Catherine Blakespear held a joint hearing of the Senate Environmental Quality Committee and the Assembly Environmental Safety and Toxic Materials Committee in San Diego Thursday to explore how the state can help solve the problem. “California has long been a national leader in environmental stewardship and policy making,” Blakespear said at the hearing. “But what is happening in the Tijuana River Valley is an international environmental disaster that undermines everything that California stands for.” The hearing at Scripps Institution of Oceanography in La Jolla, convened scientists and civic leaders to discuss how failed infrastructure, industrial waste and decades of neglect created the environmental disaster, and what it will take to fix it. “Due to its international nature, we know the federal government must take the lead,” Blakespear said. “Still, there is much that the state and local governments can do.” After decades of stalemate, action on Tijuana River pollution is speeding up. The U.S. Environmental Protection Agency on Monday announced a new agreement with Mexico to plan for wastewater infrastructure to accommodate future population growth in Tijuana. On Wednesday State Sen. Steve Padilla introduced a bill to update state standards for hydrogen sulfide, a noxious gas with a rotten egg smell that’s produced by sewage in the river. Residents in the area complain of headaches, nausea and other ailments when hydrogen sulfide reaches high concentrations. The bill would require the California Air Resources Board to review the half-century-old standard and tighten it if needed. State Lawmakers also aim to improve conditions for lifeguards and other workers exposed to pollution, and hold American companies accountable for their role in contamination of the river. County officials will conduct an extensive health study to measure effects of Tijuana River pollution, and are making plans to remove a pollution hot spot in Imperial Beach. Ongoing, chronic pollution Sewage spills in south San Diego County became common in the early 2000s, sickening swimmers and surfers at local beaches. Then the aging wastewater plants failed, sending hundreds of millions of gallons of raw sewage into the ocean. Last year Scripps researchers found that the river is harming nearby communities by releasing airborne chemicals including hydrogen sulfide gas, which smells like rotten eggs. “The sewage flowing into San Diego County’s Coastline is poisoning our air and water, harming public health, closing beaches, and killing marine life,” Blakespear said.  San Diego officials have successfully lobbied for federal investment to upgrade aging wastewater treatment plants. They also introduced faster water quality testing and surveyed residents to understand health issues.  Paula Stigler Granados, a professor of public health at San Diego State University, said studies of people living near the Tijuana River found “more scary stuff,”  with 45% experiencing health problems, 63% saying pollution disrupted their work or school and 94% of respondents reporting sewage smells at home.  “Children are waking up sick in the middle of the night,” she said. “This is an ongoing, chronic exposure, not a one-time event.” A section of the Tijuana River next to Saturn Boulevard in San Diego on Nov. 21, 2025. Photo by Adriana Heldiz, CalMatters Water samples revealed industrial chemicals, methamphetamine, fentanyl, restricted pesticides, pharmaceuticals and odor-causing sulfur compounds, she said. “This is absolutely a public health emergency,” Stigler Granados said. “I do think it is the biggest environmental crisis we have in the country right now.” That sense of urgency isn’t universal. Last year Gov. Gavin Newsom declined requests by San Diego officials to declare a state of emergency over the border pollution problem, saying it “would have meant nothing.” Over the last two years State Sen. Steve Padilla has introduced legislation to fund improvements to wastewater treatment, limit landfill construction in the Tijuana River Valley and require California companies to report waste discharges that affect water quality in the state, but those bills failed. He said the problem is overlooked in this border area, with its low-income and working class population. “This is one of the most unique and acute environmental crises in all of North America,” Padilla said. “It is underappreciated simply because of where it is occurring.”  Tijuana River solutions This year the U.S. repaired the failing South Bay International Wastewater Treatment Plant and expanded its capacity from 25 million to 35 million gallons of wastewater per day. In April, Mexico repaired its Punta Bandera plant near the border, reducing sewage flows into the ocean. But the Imperial Beach shoreline has remained closed for three years, and residents still complain of headaches, nausea, eye irritation and respiratory ailments from airborne pollution. That problem is worst at a point known as the Saturn Blvd. hot spot in Imperial Beach, where flood control culverts churn sewage-tainted water into foam, spraying contaminants into the air. “When the water is polluted you can close the beach,” said Kim Prather, an atmospheric chemist at Scripps, who identified the airborne toxins. “But you can’t tell people not to breathe.” Community members feel forgotten by state leaders as they face chronic air pollution and years of closed beaches because of contaminated wastewater from the Tijuana River, said Serge Dedina, executive director of the environmental organization WildCoast and former Imperial Beach mayor. “What they say is ‘how come California doesn’t care about us?’” Dedina said. As federal authorities plan expansions to the South Bay International Wastewater Treatment Plant that will boost its capacity to 50 million gallons per day, local and state leaders have their own action plan. A top priority for Aguirre is removing culverts at the Saturn Blvd. hot spot that cause airborne pollution. “That’s low hanging fruit that we don’t need to depend on the federal government to fix,” Aguirre said. She hopes to get funding for that project from Proposition 4, the state environmental bond that voters passed earlier this year. It dedicates $50 million to cleaning up degraded waterways, including the Tijuana River and New River, which flows into the Salton Sea.  The county is also planning a health study that would include physiological measurements to determine the health effects of Tijuana River pollution. “What we’re working on is how are we going to take real, hard medical data and follow a cohort of people who live in this environment, so we can understand what is happening in their bodies,” Aguirre said. “What is happening to children and seniors? What is in their bloodstreams?” San Diego County has distributed about 10,000 home air purifiers to households near the Tijuana River, but Aguirre wants to provide devices to all 40,000 homes in the affected area. Dedina said his organization is removing waste tires that are exported to Mexico and wash back into the Tijuana River Valley. “My lesson here is we need to stop the sediment, the tires, the trash, the toxic waste, the sewage,” he said. In addition to his bill updating hydrogen sulfide standards, Padilla said he’s exploring legislation to regulate pollution created by California companies operating through maquiladoras in Mexico. He wants to work with Mexico “to put some pressure on them to basically clamp down on American companies that are licensed to do business here in California. Blakespear said she wants to protect lifeguards and other public workers exposed to pollution. Whether the solution is creating environmental standards for international businesses or funding costly infrastructure, lawmakers acknowledge that the binational nature of the problem makes it tough to solve. “The complexity around it being an international issue and being a federal issue has added to the difficulties about who should act,” Blakespear said.

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