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Heat exposure, cloudy water, and bad air: The data gap of toxic prisons

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Wednesday, September 18, 2024

Since she began studying mechanical engineering as an undergraduate at Stanford University, Ufuoma Ovienmhada had little desire to build “tech for tech’s sake.” The university’s sustainability lab offered one route to the applied side of engineering that appealed to her. One summer, she worked with the lab’s researchers on a project in Ivory Coast, in West Africa, where she considered how engineering could be employed for sustainable development. Undergirding Ovienmhada’s academic work was a burgeoning political consciousness shaped by the police murders of unarmed Black people. In her recollection, her college tenure, between 2014 and 2018, was “the Black Lives Matter era of police violence being broadcast on social media every other week.” She regularly attended protests and participated in Black campus organizations where she and her peers frequently discussed police brutality. While researching policing protocols at Stanford, Ovienmhada remembers being told by a campus officer that someone walking down the street in a hoodie would automatically be considered suspicious. “You’re telling me that racism is embedded in how you operate,” she remembers thinking. Ovienmhada went on to enroll in a master’s program at the MIT Media Lab, where she studied the use of satellite imagery analysis to manage invasive species in the Republic of Benin. She was in school during yet another period of time punctuated by police murders — this time of Breonna Taylor and George Floyd. The unprecedented nationwide protests against police brutality in the summer of 2020 encouraged Ovienmhada to pivot from international development work to the domestic issues of policing and mass incarceration. She wanted to figure out how she could apply her skills as an engineer and programmer to address the problems that concerned her most deeply. As young people across the country took the streets to demand an end to racist and violent policing, Ovienmhada learned about the nascent field of prison ecology, which focuses on the environmental hazards within and around carceral facilities (prisons, jails, and immigrant detention centers) and how they affect incarcerated people and surrounding communities.  At the time, academic writings in prison ecology were limited to a handful of journal articles in the social sciences. It seemed to her that few were considering how to apply quantitative methods to uncover the environmental issues affecting incarcerated populations. There was a gap in the data, and she felt called to help fill it.  A mock prison cell, intended to simulate the heat inside Texas prisons, sits outside the Texas State Capitol building in Austin, Texas in July, 2023. SERGIO FLORES/AFP via Getty Images Though the world of academia was only beginning to wake up to the study of prison ecology, organizers working against mass incarceration had already spent years drawing connections between environmental justice issues and the conditions in prisons. Members of the national grassroots organization Fight Toxic Prisons, or FTP, which uses advocacy and direct action to challenge the prison system, were well aware of not only the litany of environmental hazards that incarcerated people in the U.S. face, but also the value of quantitative research and, in particular, geospatial analysis in shaping the work of the decarceration movement.  “There is so much about this issue that is very geographical,” said Mei Azaad, an organizer with the Fight Toxic Prisons, adding that so many of the environmental hazards in prisons come from their proximity to oil and gas infrastructure or to Superfund sites. The lack of data to inform them where specific environmental hazards were concentrated was “something we kept running up against,” she said. By 2020, FTP had been doing disaster response work for a few years, and they knew how useful it would be to have a flood risk map overlaid on top of a map of U.S. carceral facilities, something they could refer to when determining how to prioritize their advocacy efforts. Meanwhile, in the course of her own research, Ovienmhada realized that she could apply her knowledge of remote sensing, which enables practitioners to map a range of environmental indicators such as flood risk, air quality, and heat exposure to wide geographic areas, to contribute better applications of geospatial analysis. From her apartment in Cambridge, Massachusetts, Ovienmhada had been keeping up with FTP’s work. On social media, they often posted data and mapping-oriented information about prisons. She was initially hesitant to reach out to the group and offer her help — aware of the hesitation that community organizers often have toward academics. But, coincidentally, a friend who worked on FTP’s disaster response team heard about Ovienmhada’s satellite imagery-based approach to studying prison ecology, and offered to make the connection.  Ovienmhada joined FTP’s rapid response team in 2022, the year the Category 4 Hurricane Ian barreled through central Florida, taking out power in wide areas of the state, killing 149 people, and causing over $100 billion in damage. As the storm approached the Florida coast, she made a map showing that several of the state’s carceral facilities were in mandatory evacuation zones, but were not being evacuated. After a phone banking campaign in which they informed Tampa’s Hillsborough County Jail of the map they’d made, the facility decided to evacuate its incarcerated residents. “We can’t say that they did this because of FTP but it was cool to see this kind of map used to mobilize,” Ovienmhada said. The Toxic Mapping Project allows users to explore a range of environmental hazards in prisons. Over the past several years, a growing body of academic work has established that prisons expose incarcerated people to a long list of severe environmental hazards. A 2022 report from the American Journal of Public Health found that nearly half of the country’s prisons rely on water from sources contaminated with “forever chemicals,” toxic compounds that do not break down easily in the body and have been linked to serious health effects like cancer and kidney disease. Earlier this year, a group of researchers examined heat exposure for all 4,078 operational carceral facilities in the continental U.S. between the years 1982-2020, and found that prison populations are highly vulnerable to extreme heat exposure, a problem that is only increasing with the climate crisis. Though these kinds of research projects offer valuable insights into environmental conditions afflicting prisoners, Ovienmhada said, they do not often respond to the needs of groups like FTP that want to use satellite data to take immediate action against specific prisons and, ultimately, to advance decarceration.  Ovienmhada found that she enjoyed using the skills she’d developed to aid FTP’s organizing work. But the technical abilities to design maps and build models weren’t the only hurdles that the practical applications of prison ecology had to overcome. The programs and server space to build the maps can cost thousands. They needed money, which is often more readily available to research a problem than to do something about it.  Ovienmhada’s connection with FTP coincided with the Biden Administration’s big push for environmental justice, a span of several years that saw the formation of White House advisory committees on the issue and the dispersal of millions of federal dollars to research projects illuminating the disproportionate impacts of environmental stressors on communities of color across the country. For the first time, federal agencies were under a federal directive to support environmental justice initiatives. In April 2023, President Biden passed Executive order 14096, which directs the federal government to strengthen its commitment to environmental justice by funding scientific research and data collection initiatives, in addition to engaging with local communities. Ovienmhada was just starting her PhD in aerospace engineering when she noticed that NASA had published a solicitation for proposals from academics to use the agency’s satellite imagery to study environmental injustices. The highest tier of funding — $250,000 — was to be awarded to projects that developed a geospatial tool for integrating satellite data and other socioeconomic information around an environmental justice issue. It was the opportunity Ovienmhada and FTP had been waiting for. They quickly put together an application, in which they proposed a different approach to data gathering. Rather than just visualizing environmental-hazard data on top of a map of U.S. carceral facilities, they wanted to incorporate the voices of people held in those same facilities. This qualitative approach, they reasoned, would fill in gaps in their knowledge, illuminating problems that couldn’t be picked up by an infrared camera hovering in space. Several months after they submitted the application, they were informed that they’d won.  They saw the tool they wanted to develop as an intervention into the proliferation of data-driven mapping tools that government agencies and academics have built over the past four years, which illuminate disparities in environmental harm across the country but do little to compel suitable solutions. The federal Council on Environmental Quality, for instance, released the Climate & Economic Justice Screening Tool, an interface that explores the concentration of climate risk in low income communities. The Environmental Protection Agency also published a mapping tool called EJScreen, which allows users to track the geographic distribution of a range of environmental hazards and see how they’re concentrated in communities of color. Though developed as part of federal initiatives to advance environmental justice, Ovienmhada said, these resources do not adequately engage the communities most impacted by environmental hazards, thus limiting their efficacy in affecting tangible, grassroots change. “Just making stuff visible is not environmental justice,” Ovienmhada said. Read Next How schools, hospitals, and prisons in 15 states profit from land and resources on 79 tribal nations Anna V. Smith & Maria Parazo Rose One man who they interviewed for their project (all the interviewees were paid) was formerly incarcerated at the Texas based prison farm Clemens Unit. He said the facility had air conditioned rooms where inmates could sit and cool off on sweltering summer days. But the prison guards were “sadistic human beings,” he said. ”You could be on the verge of a heatstroke and [they’re] not going to open your cell and escort you to respite.”  What this shows, Oviemhada argues, is that a solution that may seem obvious when viewing the data through a normative lens (the establishment of “cooling” rooms) won’t necessarily keep incarcerated people safe if other, experiential aspects of life in prisons are not accounted for (the guards’ behavior). Accounting for the guards’ behavior, she said, requires a reckoning with the wider system of mass incarceration, which punishes people “through neglect, violence, retaliation, slavery, environmental harm, and forced or cheap labor.”  It took about two years for Oviemhada, Azaad, and the rest of the FTP team to collect the data and interviews and build the web-based platform, called the Toxic Prisons Mapping Project, which launches today. Listening to the voices of former prisoners and their loved ones describe the state of the air, water, and land in and around U.S. prisons, users can get a sense of the material realities behind the numbers. Several people, for instance, described laying in pools of water or soaking their clothes to stay cool in the summertime. Others recalled inhaling thick wildfire smoke and not being provided protective equipment or other resources to keep themselves safe. Multiple people interviewed for the project described off-colored smelly tap water that, being behind bars, they had no choice but to drink.  Ovienmhada and Azaad told Grist that they intend for the Project to be a source of education, broadening the public’s knowledge of environmental hazards in prisons. Additionally, they hope that the families of incarcerated people will use the tool to learn more about the facilities where their loved ones are being kept, and to advocate for measures that will improve their conditions. Members of other organizations that conduct disaster-response efforts at carceral facilities can also use the tool to inform and direct their organizing efforts. But even something like a successful evacuation strategy during a storm is just a short term victory, and not what organizers like Azaad are ultimately fighting for. She and others who worked on the tool don’t just want to see less toxic prisons; their ultimate goal is to see no prisons.  In the long term, Azaad continued, they are working toward “a world where both people and land are not seen as disposable.” The way she sees it, industries treat land like a disposable resource to degrade and pollute in the same way that the state incarcerates people it deems unworthy or unable to participate in society. “The same logic that allows a Superfund site to exist allows a prison to exist,” Azaad said. That’s why, she concluded, the environmental movement should see itself not as distinct from, but as a partner to, the fight against prisons.  “If we want a world without prisons, we also need to heal the land,” she said. This story was originally published by Grist with the headline Heat exposure, cloudy water, and bad air: The data gap of toxic prisons on Sep 18, 2024.

There’s been a proliferation of data-driven mapping tools that illuminate disparities in environmental harm, but they do little to compel suitable solutions — especially for incarcerated people.

Since she began studying mechanical engineering as an undergraduate at Stanford University, Ufuoma Ovienmhada had little desire to build “tech for tech’s sake.” The university’s sustainability lab offered one route to the applied side of engineering that appealed to her. One summer, she worked with the lab’s researchers on a project in Ivory Coast, in West Africa, where she considered how engineering could be employed for sustainable development.

Undergirding Ovienmhada’s academic work was a burgeoning political consciousness shaped by the police murders of unarmed Black people. In her recollection, her college tenure, between 2014 and 2018, was “the Black Lives Matter era of police violence being broadcast on social media every other week.” She regularly attended protests and participated in Black campus organizations where she and her peers frequently discussed police brutality. While researching policing protocols at Stanford, Ovienmhada remembers being told by a campus officer that someone walking down the street in a hoodie would automatically be considered suspicious. “You’re telling me that racism is embedded in how you operate,” she remembers thinking.

Ovienmhada went on to enroll in a master’s program at the MIT Media Lab, where she studied the use of satellite imagery analysis to manage invasive species in the Republic of Benin. She was in school during yet another period of time punctuated by police murders — this time of Breonna Taylor and George Floyd. The unprecedented nationwide protests against police brutality in the summer of 2020 encouraged Ovienmhada to pivot from international development work to the domestic issues of policing and mass incarceration. She wanted to figure out how she could apply her skills as an engineer and programmer to address the problems that concerned her most deeply. As young people across the country took the streets to demand an end to racist and violent policing, Ovienmhada learned about the nascent field of prison ecology, which focuses on the environmental hazards within and around carceral facilities (prisons, jails, and immigrant detention centers) and how they affect incarcerated people and surrounding communities. 

At the time, academic writings in prison ecology were limited to a handful of journal articles in the social sciences. It seemed to her that few were considering how to apply quantitative methods to uncover the environmental issues affecting incarcerated populations. There was a gap in the data, and she felt called to help fill it. 

A mock prison cell, intended to simulate the heat inside Texas prisons, sits outside the Texas State Capitol building in Austin, Texas in July, 2023. SERGIO FLORES/AFP via Getty Images

Though the world of academia was only beginning to wake up to the study of prison ecology, organizers working against mass incarceration had already spent years drawing connections between environmental justice issues and the conditions in prisons. Members of the national grassroots organization Fight Toxic Prisons, or FTP, which uses advocacy and direct action to challenge the prison system, were well aware of not only the litany of environmental hazards that incarcerated people in the U.S. face, but also the value of quantitative research and, in particular, geospatial analysis in shaping the work of the decarceration movement. 

“There is so much about this issue that is very geographical,” said Mei Azaad, an organizer with the Fight Toxic Prisons, adding that so many of the environmental hazards in prisons come from their proximity to oil and gas infrastructure or to Superfund sites. The lack of data to inform them where specific environmental hazards were concentrated was “something we kept running up against,” she said. By 2020, FTP had been doing disaster response work for a few years, and they knew how useful it would be to have a flood risk map overlaid on top of a map of U.S. carceral facilities, something they could refer to when determining how to prioritize their advocacy efforts. Meanwhile, in the course of her own research, Ovienmhada realized that she could apply her knowledge of remote sensing, which enables practitioners to map a range of environmental indicators such as flood risk, air quality, and heat exposure to wide geographic areas, to contribute better applications of geospatial analysis.

From her apartment in Cambridge, Massachusetts, Ovienmhada had been keeping up with FTP’s work. On social media, they often posted data and mapping-oriented information about prisons. She was initially hesitant to reach out to the group and offer her help — aware of the hesitation that community organizers often have toward academics. But, coincidentally, a friend who worked on FTP’s disaster response team heard about Ovienmhada’s satellite imagery-based approach to studying prison ecology, and offered to make the connection. 

Ovienmhada joined FTP’s rapid response team in 2022, the year the Category 4 Hurricane Ian barreled through central Florida, taking out power in wide areas of the state, killing 149 people, and causing over $100 billion in damage. As the storm approached the Florida coast, she made a map showing that several of the state’s carceral facilities were in mandatory evacuation zones, but were not being evacuated. After a phone banking campaign in which they informed Tampa’s Hillsborough County Jail of the map they’d made, the facility decided to evacuate its incarcerated residents.

“We can’t say that they did this because of FTP but it was cool to see this kind of map used to mobilize,” Ovienmhada said.

The Toxic Mapping Project allows users to explore a range of environmental hazards in prisons.

Over the past several years, a growing body of academic work has established that prisons expose incarcerated people to a long list of severe environmental hazards. A 2022 report from the American Journal of Public Health found that nearly half of the country’s prisons rely on water from sources contaminated with “forever chemicals,” toxic compounds that do not break down easily in the body and have been linked to serious health effects like cancer and kidney disease. Earlier this year, a group of researchers examined heat exposure for all 4,078 operational carceral facilities in the continental U.S. between the years 1982-2020, and found that prison populations are highly vulnerable to extreme heat exposure, a problem that is only increasing with the climate crisis. Though these kinds of research projects offer valuable insights into environmental conditions afflicting prisoners, Ovienmhada said, they do not often respond to the needs of groups like FTP that want to use satellite data to take immediate action against specific prisons and, ultimately, to advance decarceration. 

Ovienmhada found that she enjoyed using the skills she’d developed to aid FTP’s organizing work. But the technical abilities to design maps and build models weren’t the only hurdles that the practical applications of prison ecology had to overcome. The programs and server space to build the maps can cost thousands. They needed money, which is often more readily available to research a problem than to do something about it. 

Ovienmhada’s connection with FTP coincided with the Biden Administration’s big push for environmental justice, a span of several years that saw the formation of White House advisory committees on the issue and the dispersal of millions of federal dollars to research projects illuminating the disproportionate impacts of environmental stressors on communities of color across the country. For the first time, federal agencies were under a federal directive to support environmental justice initiatives. In April 2023, President Biden passed Executive order 14096, which directs the federal government to strengthen its commitment to environmental justice by funding scientific research and data collection initiatives, in addition to engaging with local communities.

Ovienmhada was just starting her PhD in aerospace engineering when she noticed that NASA had published a solicitation for proposals from academics to use the agency’s satellite imagery to study environmental injustices. The highest tier of funding — $250,000 — was to be awarded to projects that developed a geospatial tool for integrating satellite data and other socioeconomic information around an environmental justice issue. It was the opportunity Ovienmhada and FTP had been waiting for. They quickly put together an application, in which they proposed a different approach to data gathering. Rather than just visualizing environmental-hazard data on top of a map of U.S. carceral facilities, they wanted to incorporate the voices of people held in those same facilities. This qualitative approach, they reasoned, would fill in gaps in their knowledge, illuminating problems that couldn’t be picked up by an infrared camera hovering in space. Several months after they submitted the application, they were informed that they’d won. 

They saw the tool they wanted to develop as an intervention into the proliferation of data-driven mapping tools that government agencies and academics have built over the past four years, which illuminate disparities in environmental harm across the country but do little to compel suitable solutions. The federal Council on Environmental Quality, for instance, released the Climate & Economic Justice Screening Tool, an interface that explores the concentration of climate risk in low income communities. The Environmental Protection Agency also published a mapping tool called EJScreen, which allows users to track the geographic distribution of a range of environmental hazards and see how they’re concentrated in communities of color. Though developed as part of federal initiatives to advance environmental justice, Ovienmhada said, these resources do not adequately engage the communities most impacted by environmental hazards, thus limiting their efficacy in affecting tangible, grassroots change.

“Just making stuff visible is not environmental justice,” Ovienmhada said.

One man who they interviewed for their project (all the interviewees were paid) was formerly incarcerated at the Texas based prison farm Clemens Unit. He said the facility had air conditioned rooms where inmates could sit and cool off on sweltering summer days. But the prison guards were “sadistic human beings,” he said. ”You could be on the verge of a heatstroke and [they’re] not going to open your cell and escort you to respite.” 

What this shows, Oviemhada argues, is that a solution that may seem obvious when viewing the data through a normative lens (the establishment of “cooling” rooms) won’t necessarily keep incarcerated people safe if other, experiential aspects of life in prisons are not accounted for (the guards’ behavior). Accounting for the guards’ behavior, she said, requires a reckoning with the wider system of mass incarceration, which punishes people “through neglect, violence, retaliation, slavery, environmental harm, and forced or cheap labor.” 

It took about two years for Oviemhada, Azaad, and the rest of the FTP team to collect the data and interviews and build the web-based platform, called the Toxic Prisons Mapping Project, which launches today. Listening to the voices of former prisoners and their loved ones describe the state of the air, water, and land in and around U.S. prisons, users can get a sense of the material realities behind the numbers. Several people, for instance, described laying in pools of water or soaking their clothes to stay cool in the summertime. Others recalled inhaling thick wildfire smoke and not being provided protective equipment or other resources to keep themselves safe. Multiple people interviewed for the project described off-colored smelly tap water that, being behind bars, they had no choice but to drink. 

Ovienmhada and Azaad told Grist that they intend for the Project to be a source of education, broadening the public’s knowledge of environmental hazards in prisons. Additionally, they hope that the families of incarcerated people will use the tool to learn more about the facilities where their loved ones are being kept, and to advocate for measures that will improve their conditions. Members of other organizations that conduct disaster-response efforts at carceral facilities can also use the tool to inform and direct their organizing efforts. But even something like a successful evacuation strategy during a storm is just a short term victory, and not what organizers like Azaad are ultimately fighting for. She and others who worked on the tool don’t just want to see less toxic prisons; their ultimate goal is to see no prisons. 

In the long term, Azaad continued, they are working toward “a world where both people and land are not seen as disposable.” The way she sees it, industries treat land like a disposable resource to degrade and pollute in the same way that the state incarcerates people it deems unworthy or unable to participate in society. “The same logic that allows a Superfund site to exist allows a prison to exist,” Azaad said. That’s why, she concluded, the environmental movement should see itself not as distinct from, but as a partner to, the fight against prisons. 

“If we want a world without prisons, we also need to heal the land,” she said.

This story was originally published by Grist with the headline Heat exposure, cloudy water, and bad air: The data gap of toxic prisons on Sep 18, 2024.

Read the full story here.
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Gold clam invasion in NZ threatens drinking water for millions of people

The invasion threatens more than water. Clams could foul dam intakes and reduce hydroelectric efficiency in a river that generates 13% of New Zealand’s power.

Michele Melchior, CC BY-NDAs a geochemist studying New Zealand’s freshwater systems, I’ve spent years tracking the subtle chemical shifts in our rivers and lakes. But nothing prepared me for the rapid transformation unfolding in the Waikato River since the invasion of the Asian clam (Corbicula fluminea, also known as the freshwater gold clam). First detected in May 2023 in Lake Karāpiro, a reservoir lake on the Waikato, this bivalve is now altering the river’s chemistry in ways that could jeopardise drinking water for up to two million people, disrupt hydroelectric power and undermine decades of ecosystem restoration efforts. Our team’s work reveals how these clams are depleting essential minerals like calcium from the water, impairing arsenic removal during treatment and signalling a rapid escalation with broader impacts ahead. Gold clams now dominate the river bed in many areas, with densities exceeding 1,000 individuals per square metre. Michele Melchior, CC BY-ND Native to eastern Asia, the gold clam can self-fertilise and spreads via contaminated gear, birds or floods. Climate change will likely accelerate its invasion. The problem is already spreading quickly beyond the Waikato River. A recent detection in a Taranaki lake has led to waterway closures. And warnings for the Whanganui River underscore the urgent need for national vigilance. A silent invasion with big consequences The Waikato River stretches 425 km from Lake Taupō to the Tasman Sea, powering nine hydroelectric dams and supplying drinking water to Auckland, Hamilton and beyond. It’s a taonga (cultural treasure) central to Māori identity and the subject of a landmark restoration strategy, Te Ture Whaimana o Te Awa o Waikato, that aims to revive the river’s mauri (life force). In late 2024, arsenic levels in treated Waikato water briefly exceeded safe limits of 0.01 milligrams per litre (mg/L), triggering alarms at treatment plants. Investigations ruled out typical culprits such as geothermal spikes. Instead, our analysis points to the clams. By filtering water and building calcium carbonate shells, the clams are drawing down dissolved calcium by 25% below historical norms. But calcium is crucial for water treatment processes because it helps bind and remove contaminants such as arsenic. Our modelling estimates the clams are forming up to 30 tonnes of calcium carbonate daily in Lake Karāpiro alone. This suggests lake-wide densities averaging around 300 individuals per square metre. 2025 surveys show hotspots with up to 1,134 clams per square metre. The result? Impaired arsenic removal. Without stable calcium, flocs (clumps of particles) don’t form properly, letting arsenic slip through. While the exceedances were short-lived and contained through quick adjustments, they exposed vulnerabilities in a system optimised for historically consistent river chemistry. Field teams survey the rapidly expanding population of freshwater gold clams in the Waikato River. Michele Melchior, CC BY-ND How the clams are changing the river The gold clam isn’t just a filter-feeder; it’s an ecosystem engineer. Each clam can process up to a litre of water per hour, sequestering calcium for shells while releasing ammonia and bicarbonate. Our data from 2024-2025, collected at multiple sites, show these shifts are most pronounced in deeper waters. Statistical tests confirm patterns absent in pre-invasion records. Longer residence times in the reservoir lake (up to seven days) exacerbate the issue. Faster flushing correlates with higher growth rates, as clams ramp up activity. But prolonged retention in warmer months can lead to hypoxia (low oxygen), with the potential to trigger mass die-offs that release toxins or mobilise sediment-bound arsenic. Lake Karāpiro water column temperature and dissolved oxygen levels (from November 2024 to October 2025) show oxygen depletion in deep water during warmer summer conditions, likely exacerbated by the gold clam. Author provided, CC BY-NC-ND These changes threaten more than water treatment. Clams could biofoul dam intakes and reduce hydroelectric efficiency in a river that generates 13% of New Zealand’s power (25% at peak). Native species like kākahi (freshwater mussels) face competition and shifts in nutrient cycling could fuel algal blooms, clashing with restoration goals. Climate risks and stressors in a warming world Amid these ongoing changes, climate projections indicate that hot, dry events – such as prolonged heatwaves or droughts – are likely to become more frequent. Such conditions could reduce river flows and elevate water temperatures, lowering dissolved oxygen levels and creating low-oxygen zones. If clam densities continue to rise exponentially, a mass die-off might occur. This would release pulses of ammonia and organic matter that further deplete dissolved oxygen. This, in turn, could promote arsenic mobilisation from sediments and harmful algal blooms in nutrient-enriched, stagnant waters. This could necessitate supply restrictions for affected communities. Ecologically, it might kill fish and disrupt native biodiversity. Economically, it could interrupt industries reliant on the river. From the Waikato to a nationwide threat The invasion isn’t contained. The clam, which can produce up to 70,000 juveniles annually, thrives in warm, nutrient-rich waters. It is notoriously hard to eradicate once established. In mid-November, the Taranaki Regional Council confirmed the gold clam in Lake Rotomanu. Just days later, warnings were issued to boaties on the Whanganui River, urging rigorous “check, clean, dry” protocols. Without intervention, the clams could reach other systems, including the Clutha or Waitaki, and compound pressures on New Zealand’s already stressed freshwaters. Our research highlights the need for integrated action. Monitoring should expand, incorporating environmental DNA for early detection and calcium isotope tracing to pinpoint clam impacts. Water providers could trial calcium dosing during peak growth periods. But solutions must honour Te Tiriti o Waitangi principles. Collaboration with iwi and blending mātauranga Māori (indigenous knowledge) with science, such as using tikanga indicators for water health, is essential. Biosecurity measures including gear decontamination campaigns are critical to slow spread. Field teams are counting invasive gold clams on the banks of the Waikato River. Michele Melchior, CC BY-ND This invasion intersects with New Zealand’s evolving water policy framework, particularly the Local Water Done Well regime which replaced the repealed Three Waters reforms in late 2023. Councils are now implementing delivery plans and focusing on financial sustainability and infrastructure upgrades. The Water Services Authority Taumata Arawai continues as the national regulator, enforcing standards amid an estimated NZ$185-260 billion infrastructure deficit. Recent government announcements propose further streamlining, including replacing regional councils with panels of mayors or territories boards, while encouraging amalgamations to simplify planning and infrastructure delivery. These changes aim to make local government more cost-effective and responsive to issues such as housing growth and infrastructure funding. But a hot or dry event could test the effectiveness of water policy, potentially straining inter-council coordination for shared resources such as the Waikato River and highlighting gaps in emergency response. Globally, the gold clam has cost billions in damages. New Zealand can’t afford to wait. By acting now, we can protect Te Awa o Waikato and safeguard water security for generations. Adam Hartland receives funding from the Ministry of Business, Innovation and Employment via grant LVLX2302.

Water shortages could derail UK’s net zero plans, study finds

Tensions grow after research in England finds there may not be enough water for planned carbon capture and hydrogen projectsRevealed: Europe’s water reserves drying up due to climate breakdownTensions are growing between the government, the water sector and its regulators over the management of England’s water supplies, as the Environment Agency warns of a potential widespread drought next year.Research commissioned by a water retailer has found water scarcity could hamper the UK’s ability to reach its net zero targets, and that industrial growth could push some areas of the country into water shortages. Continue reading...

Tensions are growing between the government, the water sector and its regulators over the management of England’s water supplies, as the Environment Agency warns of a potential widespread drought next year.Research commissioned by a water retailer has found water scarcity could hamper the UK’s ability to reach its net zero targets, and that industrial growth could push some areas of the country into water shortages.The government has a legally binding target to reach net zero greenhouse gas emissions by 2050, and has committed to a clean power system by 2030 with at least 95% of electricity generated from low-carbon sources, but the study concludes there will not be enough water available to support all planned carbon capture and hydrogen projects.Development of these kinds of projects, which use significant amounts of water, could push some UK regions into water shortages, according to the analysis undertaken by Durham University and funded by the water retailer Wave – a joint venture between Anglian Venture Holdings, the investment and management vehicle responsible for Anglian Water Group’s commercial businesses, and the Northumbrian Water Group.Led by Prof Simon Mathias, an expert in hydraulics, hydrology and environmental engineering, researchers assessed plans across England’s five largest industrial clusters in Humberside, north-west England, the Tees Valley, the Solent and the Black Country, to determine how much water would be needed to reach net zero and whether the UK’s future water supply could meet this demand.“Decarbonisation efforts associated with carbon capture and hydrogen production could add up to 860m litres per day of water demand by 2050. In some regions, for example Anglian Water and United Utilities, deficits could emerge as early as 2030,” said Mathias.Decarbonisation within the Humberside industrial cluster could push Anglian Water into water deficit by 2030, leading to a shortage of 130m litres a day by 2050, while plans around the north-west cluster could push United Utilities into a deficit of around 70m litres a day by 2030, according to the research.However, a United Utilities spokesperson said the deficit figures were “overstated as regional water management plans already make allowances for the predicted hydrogen demand”, and added that the “drive to net zero is an important issue facing the water sector, with significant work already under way to drive sustainable solutions”.Anglian Water did recognise the deficit figures but said they were at the upper end of a range it had considered. It blamed Ofwat for not allowing water companies to spend more, hindering its ability to secure future supplies.Business demand is often excluded from strategic planning, according to Anglian Water, which it said prevented water companies from making the investments needed, weakening the system’s resilience to the climate crisis and limiting its capacity to support economic growth.A spokesperson for Water UK confirmed water companies’ plans to ensure there were enough water supplies in the future did not take into account the needs of some large planned projects, and blamed the Environment Agency for the omission.“After being blocked from building reservoirs for more than 30 years, we have finally been given approval to build 10. The problem is that the Environment Agency’s forecasts, on which the size, number and locations of these reservoirs are based, do not account for the government’s economic or low-carbon ambitions. Hydrogen energy needs a lot of water, so correcting these forecasts is increasingly urgent.”Nigel Corfield from Wave said he had commissioned the work because “water companies don’t have the same statutory obligations for businesses as they do for households, and we sensed that there was going to be a bit of a problem”.“Government and Ofwat are allowing businesses and these big projects to sort themselves out in terms of how they’re going to get their water,” said Corfield. “We generally don’t think that’s right, because this is about energy security so we think that the best people to provide that and supply that and support that are the water companies.”The government said the UK was “rolling out hydrogen at scale”, with 10 projects said to be shovel-ready. It said it expected all schemes to have sustainable water-sourcing plans and, where required, abstraction licences. Carbon capture schemes would get the green light only if they could prove they met strict legal standards and limits and offered “a high level of protection” for people and the environment, it said.“We face a growing water shortage in the next decade and that is one of the reasons we are driving long-term systemic change to tackle the impacts of climate change,” said a government spokesperson.“This includes £104bn of private investment to help reduce leakage and build nine reservoirs, as well as a record £10.5bn in government funding for new flood defences to protect nearly 900,000 properties by 2036.”But Dieter Helm, a professor of economic policy at the University of Oxford, said England’s water system was stuck in the past and that there was no lack of water, rather that it was badly managed.“It’s worse than an analogue industry,” he said. “Until recently, some water companies didn’t even know where their sewage works were, let alone whether they were discharging into rivers. The information set is extremely weak. But a data revolution now means we can map water systems in extraordinary detail, digitally, at a far finer resolution.”Helm said every drop of water should be measured and reported in real time, and that the data should sit with a new, independent catchment regulator, not the water companies.“You should never be able to have an abstraction without an abstraction meter,” he said. “And it should be a smart meter, automatically reporting. You can’t run a system without data, and you can’t rely on the water companies to hold the data for everyone in the system – they’re just one player.”In his model, the catchment regulator would hold live data on “all the catchment uses of water”, such as abstraction, runoff, water and river levels, sewage discharges, and publish everything on a public website. Anyone, he said, should be able to look up a catchment, see what was going on, and even model the impact of a new project, such as a hydrogen plant, on the system.“That’s how you run an electricity system,” Helm said. “Why don’t we have that in water? And why don’t we have a body responsible for it? There’s an information revolution required here, quite separate from the question of whether we actually run short of water.”The government and the Environment Agency have already warned of an England-wide water deficit of 6bn litres a day by 2055, and have said England faces widespread drought next year unless there is significant rainfall over the winter.

Brown Grass Cost a Famed Golf Course a Big Tournament and Highlighted Hawaii Water Problems

The Plantation Course at Kapalua Resort on Maui is famous for its ocean views and hosting The Sentry, a $20 million PGA Tour event

HONOLULU (AP) — High up on the slopes of the west Maui mountains, the Plantation Course at Kapalua Resort provides golfers with expansive ocean views. The course is so renowned that The Sentry, a $20 million signature event for the PGA Tour, had been held there nearly every year for more than a quarter-century. “You have to see it to believe it," said Ann Miller, a former longtime Honolulu newspaper golf writer. “You're looking at other islands, you're looking at whales. ... Every view is beautiful.”Its world-class status also depends on keeping the course green.Ultimately, as the Plantation's fairways and greens grew brown, the PGA Tour canceled the season opener, a blow that cost what officials estimate to be $50 million economic impact on the area.A two-month closure and some rain helped get the course in suitable condition to reopen 17 holes earlier this month to everyday golfers who pay upwards of $469 to play a round. The 18th hole is set to reopen Monday, but the debate is far from over about the source of the water used to keep the course green and what its future looks like amid climate change. Questions about Hawaii's golf future There’s concern that other high-profile tournaments will also bow out, taking with them economic benefits, such as money for charities, Miller said.“It could literally change the face of it,” she said, “and it could change the popularity, obviously, too.”The company that owns the courses, along with Kapalua homeowners and Hua Momona Farms, filed a lawsuit in August alleging Maui Land & Pineapple, which operates the century-old system of ditches that provides irrigation water to Kapalua and its residents, has not kept up repairs, affecting the amount of water getting down from the mountain.MLP has countersued and the two sides have exchanged accusations since then.As the water-delivery dispute plays out in court, Earthjustice, a nonprofit environmental legal group, is calling attention to a separate issue involving the use of drinking water for golf course irrigation, particularly irksome to residents contending with water restrictions amid drought, including Native Hawaiians who consider water a sacred resource.“Potable ground drinking water needs to be used for potable use,” Lauren Palakiko, a west Maui taro farmer, told the Hawaii Commission on Water Resource Management at a recent meeting. “I can’t stress enough that it should never be pumped, injuring our aquifer for the sake of golf grass or vacant mansion swimming pools.” ‘This is water that we can drink’ Kapalua's Plantation and Bay courses, owned by TY Management Corp., have historically been irrigated with surface water delivered under an agreement with Maui Land & Pineapple, but since at least the summer have been using millions of gallons of potable groundwater, according to Earthjustice attorneys who point to correspondence from commission Chairperson Dawn Chang to MLP and Hawaii Water Service they say confirms it. Chang said her letter didn't authorize anything, but merely acknowledged an “oral representation" that using groundwater is an an “existing use” at times when there’s not enough surface water. She is asking for supporting documentation from MLP and Hawaii Water Service to confirm that interpretation. In emails to The Associated Press, MLP said it did not believe groundwater could be used for golf course irrigation and Hawaii Water Service said it didn’t communicate to the commission that using groundwater to irrigate the courses was an existing use. MLP's two wells that service the course provide potable water. “This is water that we can drink. It’s an even more precious resource within the sacred resource of wai,” Dru Hara, an Earthjustice attorney said, using the Hawaiian word for water. TY, owned by Japanese billionaire and apparel brand Uniqlo’s founder Tadashi Yanai, doesn't have control over what kind of water is in the reservoir they draw upon for irrigation, TY General Manager Kenji Yui said in a statement. They're also researching ways to bring recycled water to Kapalua for irrigation. Kamanamaikalani Beamer, a former commissioner, said he's troubled by Earthjustice's allegations that proper procedures weren't followed. The wrangling over water for golf shows that courses in Hawaii need to change their relationship with water, Beamer said: “I think there needs to be a time very soon that all golf courses are utilizing at a minimum recycled water.” Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See – Nov. 2025

Violent conflict over water hit a record last year

Violence over water is on the rise worldwide. Researchers counted a record 420 incidents of conflict in 2024, many in Ukraine and the Middle East.

In Algeria, water shortages left faucets dry, prompting protesters to riot and set tires ablaze.In Gaza, as people waited for water at a community tap, an Israeli drone fired on them, killing eight. In Ukraine, Russian rockets slammed into the country’s largest dam, unleashing a plume of fire over the hydroelectric plant and causing widespread blackouts.These are some of the 420 water-related conflicts researchers documented for 2024 in the latest update of the Pacific Institute’s Water Conflict Chronology, a global database of water-related violence.The year featured a record number of violent incidents over water around the world, far surpassing the 355 in 2023, continuing a steeply rising trend. The violence more than quadrupled in the last five years. In 2024, there were 420 water-related conflicts globally The majority of incidents were in the Middle East, Sub-Saharan Africa, South Asia and Eastern Europe. Russia and Ukraine 51 conflicts Russia and Ukraine 51 conflicts Pacific Institute Sean Greene LOS ANGELES TIMES The new data from the Oakland-based water think tank show also that drinking water wells, pipes and dams are increasingly coming under attack.“In almost every region of the world, there is more and more violence being reported over water,” said Peter Gleick, the Pacific Institute’s co-founder and senior fellow, and it “underscores the urgent need for international attention.”The researchers collect information from news reports and other sources and accounts. They classify it into three categories: instances in which water was a trigger of violence, water systems were targeted and water was a “casualty” of violence, for example when shell fragments hit a water tank.Not every case involves injuries or deaths but many do.The region with the most violent incidents was the Middle East, with 138 reported. That included 66 in the Israeli-Palestinian conflict, both in Gaza and the West Bank.In the West Bank there were numerous reports of Israeli settlers destroying water pipelines and tanks and attacking Palestinian farmers.In Gaza the Israeli military destroyed more than 30 wells in the southern towns of Rafah and Khan Younis.Gleick noted that when the International Criminal Court issued arrest warrants for Israeli and Hamas leaders last year, accusing them of crimes against humanity, the charges mentioned Israeli military attacks on Gaza water systems.“It is an acknowledgment that these attacks are violations of international law,” he said. “There ought to be more enforcement of international laws protecting water systems from attacks.”Water systems also were targeted frequently in the Russia-Ukraine war, in which the researchers tallied 51 violent incidents. Residents collect water in bottles in Pokrovsk, Ukraine, where repeated Russian shelling has left civilians without functioning infrastructure. (George Ivanchenko / Associated Press) Russian strikes disrupted water service in Ukrainian cities, and oil spilled into a river after Russian forces attacked an oil depot.“These aren’t water wars. These are wars in which water is being used as a weapon or is a casualty of the conflict,” Gleick said.The researchers also found water scarcity and drought are prompting a growing number of violent conflicts. “Climate change is making those problems worse,” Gleick said.Many conflicts were in South Asia and Sub-Saharan Africa.In India, residents angry about water shortages assaulted a city worker. In Jammu, India, a woman carries a container of drinking water filled from leaking water pipes in March. (Channi Anand / Associated Press) In Cameroon, rice farmers clashed with fishers, leaving one dead and three injured.At a refugee camp in Kenya, three people died in a fight over drinking water.There’s an increase in conflicts over irrigation, disputes pitting farmers against cities, and violence arising in places where only some water is safe to drink. A man carries jugs to fetch water from a hole in the sandy riverbed in Makueni County, Kenya in February 2024. (Brian Inganga / Associated Press) Gleick, who has been studying water-related violence for more than three decades, said the purpose of the list is to raise awareness and encourage policymakers to act to reduce fighting, bloodshed and turmoil.The United Nations, in its Sustainable Development Goals, says every person should have access to water and sanitation. “The failure to do that is inexcusable and it contributes to a lot of misery,” Gleick said. “It contributes to ill health, cholera, dysentery, typhoid, water-related diseases, and it contributes to conflicts over water.”In Latin America, there were dozens of violent incidents involving water last year.In the Mexican state of Veracruz, protesters were blocking a road to denounce a pork processing plant, which they accused of using too much water and spewing pollution, when police opened fire, killing two men.In Honduras, environmental activist Juan López, who had spoken up to protect rivers from mining, was gunned down as he left church. He was the fourth member of his group to be murdered. A man fills containers with water because of a shortage caused by high temperatures and drought in Veracruz, Mexico in June 2024. (Felix Marquez / Associated Press) “There needs to be more attention on this issue, especially at the international level, but at the national level as well,” said Morgan Shimabuku, a senior researcher with the Pacific Institute. “It is getting worse, and we need to turn that tide.”For 2024, there were few events in the U.S., but among them were cyberattacks on water utilities in Texas and Indiana.In one, Russian hackers claimed responsibility for tampering with an Indiana wastewater treatment plant. Authorities said the attack caused minimal disruption. In another, a pro-Russian hacktivist group manipulated systems at water facilities in small Texas towns, causing water to overflow.The Pacific Institute’s database now lists more than 2,750 conflicts. Most have occurred since 2000. The researchers are adding incidents from 2025 as well as previous years.During extreme drought in Iran worsened by climate change, farmers were desperate enough to go up against security forces, demanding access to river water. Iran’s water crisis, compounded by decades of excessive groundwater pumping, has grown so severe that the president said Tehran no longer can remain the capital and the government will have to move it to another city.Tensions also have been growing between Iran and Afghanistan over the Helmand River, with Iranian leaders accusing their upstream neighbor of not letting enough water flow into the country.Gleick said if the drought persists and the Iranian government doesn’t improve how it manages water, “I would expect to see more violence.”

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