

SUBSCRIBE TO OUR FREE NEWSLETTER
Daily news & progressive opinion—funded by the people, not the corporations—delivered straight to your inbox.
5
#000000
#FFFFFF
To donate by check, phone, or other method, see our More Ways to Give page.


Daily news & progressive opinion—funded by the people, not the corporations—delivered straight to your inbox.
Sierra Club said the rollback "puts the public at greater risk of heart and lung disease, cancer, and even premature death, as well as causing severe neurological damage to fetuses and children.”
The Trump administration on Friday finalized its rollback of clean air regulations limiting mercury and other toxic pollutants from power plants, sparking condemnation from public health and environmental advocates who warned that the move will increase the risk of death or serious illness for millions of people in the United States.
The US Environmental Protection Agency (EPA) said it is repealing the Mercury and Air Toxics Standards (MATS), which were implemented during the Biden administration in order to protect people from mercury and other toxic air pollutants—including arsenic, lead, and chromium—from fossil fuel power plants.
The Trump administration contends that rescinding MATS will lower financial costs for utilities running older coal-fired plants during a period of rapidly rising demand from consumer and data centers powering artificial intelligence systems.
“The Biden-Harris administration’s anti-coal regulations sought to regulate out of existence this vital sector of our energy economy," EPA Administrator Lee Zeldin said Friday at the Mills Creek Power Plant, a coal-fired facility in Louisville, Kentucky. "The Trump EPA knows that we can grow the economy, enhance baseload power, and protect human health and the environment all at the same time."
However, the Sierra Club said Friday that "rolling back the new and more protective [MATS] will allow coal- and oil-fired power plants to emit more damaging pollution that puts the public at greater risk of heart and lung disease, cancer, and even premature death, as well as causing severe neurological damage to fetuses and children."
"According to the Sierra Club’s Trump Coal Pollution Dashboard, reversing the 2024 improvements and reverting to the 2012 standards will allow the dirtiest coal-fired power plants to emit 50% more mercury pollution," the group added. "In May 2025, the Trump administration exempted 68 power plants—including some of the biggest polluters in the nation—from MATS after soliciting exemption requests from big polluters over email."
Sierra Club Beyond Coal campaign director Laurie Williams called the MATS rollback "a direct attack on the health of Americans."
Last June, Sierra Club was a key part of a coalition of environmental and community groups that sued the Trump administration over the exemptions.
“These protections from mercury and other toxic pollution existed to protect communities from reckless polluters," Sierra Club campaign organizing strategist Bonnie Swinford said Friday. "By repealing these protections, the Trump administration is giving handouts to the coal industry elites—and waging war on the public’s ability to hold polluters accountable."
The Environmental Protect Network also decried the MATS repeal, saying it "will allow hundreds of facilities across 45 states to avoid meeting critical safety standards—jeopardizing public health, degrading ecosystems, and disproportionately harming children, pregnant people, and communities already overburdened by pollution."
"This is no way to make America healthy again."
Moms Clean Air Force co-founder and director Dominique Browning focused on the harms to children the rollback will inflict.
"The science is clear, and profoundly alarming. No amount of mercury is safe for babies’ developing brains," she said. "Mercury is a dangerous neurotoxin that damages the architecture of babies’ and children’s developing brains."
“The mercury rules were working," Browning argued. "Toxic emissions from US coal plants were dropping, and water bodies were getting cleaner. But now EPA Administrator Zeldin’s rollback... will allow coal plants to emit more toxic heavy metals like mercury, chromium, and lead—pollutants that contaminate our air, fall into our lakes and waterways, and poison our food supply."
"This is no way to make America healthy again," she added, referring to one of President Donald Trump's campaign slogans.
Julie McNamara, associate policy director at the Union of Concerned Scientists' Climate and Energy Program, said in a statement Friday: “Once again, the Trump administration is abandoning science and abandoning statute to give polluters a free pass. And once again, the Trump administration is doing so at the expense of people’s health."
National Resources Defense Council senior attorney John Walke asserted that "the coal industry is in decline, and dismantling clean air protections won’t bring it back."
“It will only lead to more asthma attacks, more heart problems, and more premature deaths, especially in communities living in the shadow of coal plants," Walke added. "We have a right to breathe clean air, and we will fight for that right even if Trump’s EPA refuses to.”
The EPA’s newest decision will allow power plants to emit more brain-damaging mercury and dangerous soot pollution, putting frontline communities at especially greater risk of heart and lung disease, cancer, and premature death.
[image or embed]
— NRDC (@nrdc.org) February 20, 2026 at 9:09 AM
Friday's EPA announcement followed the agency's repeal earlier this month of the endangerment finding, the Obama-era rule empowering climate regulation over the past 15 years that treated six greenhouse gases caused by burning fossil fuels as a single air pollutant for regulatory purposes.
Speaking at a Friday press conference in Washington, DC organized by Moms Clean Air Force, Talia, a local fourth grade student, said that “climate disasters are becoming more common, and they’re hurting our planet, our health, and the future of kids like me."
“Adults in the government are supposed to protect kids from climate change and not ignore it," she said, adding in a message to Trump officials that "we are taught to listen to scientists and doctors and moms—why don’t you listen to them?”
"This shameful and dangerous action," said one expert, "is rooted in falsehoods, not facts, and is at complete odds with the public interest and the best available science."
Over a dozen young Americans as well as a coalition of environmental and public health groups on Wednesday filed a pair of legal challenges against President Donald Trump's administration for repealing the "endangerment finding" that enabled federal policies aimed at combating the fossil fuel-driven climate emergency.
Environmental Protection Agency Administrator Lee Zeldin announced the long-anticipated move last week. The coalition of groups responded with a petition at the US Court of Appeals for the District of Columbia Circuit that names him and the EPA.
"The endangerment finding has been the backbone of climate policy for 17 years, protecting us from air pollution that endangers public health and welfare—including greenhouse gases that are driving climate change," explained Lawrence Hafetz, legal director at Clean Air Council, one of the groups behind the case, in a statement.
"By repealing the finding, we are sweeping the single deadliest type of pollution, climate pollution, under the rug," Hafetz continued. "Deadly floods, droughts, wildfires, and hurricanes are harming our health, our communities, and our economy. This climate chaos plan is decimating the EPA's ability to act when we need protections more than ever."
Gretchen Goldman, president and CEO at the Union of Concerned Scientists, another plaintiff, argued that "EPA's repeal of the endangerment finding and safeguards to limit vehicle emissions marks a complete dereliction of the agency's mission to protect people’s health and its legal obligation under the Clean Air Act."
"This shameful and dangerous action by the Trump administration and EPA Administrator Zeldin is rooted in falsehoods, not facts, and is at complete odds with the public interest and the best available science," she noted. "Heat-trapping emissions and global average temperatures are rising—primarily due to the burning of fossil fuels—contributing to a mounting human and economic toll across the nation."
In the lead-up to the repeal, institutions worldwide concluded that 2025 was among the hottest years on record, a group of global experts declared that "current economic models systematically underestimate climate damage," and another international team of scientists warned in a review of climate tipping points that Earth is at risk of a hothouse trajectory.
Despite such findings, Trump has waged a sweeping war on the climate since he returned to office last year, thanks in part to campaign cash from the fossil fuel industry. In addition to repealing the 2009 endangerment finding—which the administration celebrated as the "single largest deregulatory action in US history"—he has declared a "national energy emergency" and ditched a long list of organizations and treaties, including the Paris Agreement.
Friends of the Earth legal director Hallie Templeton said Wednesday that "today's lawsuit makes clear that we will not idly stand by while EPA blatantly refutes its core mission to protect the environment and public health from dangerous pollution."
Templeton and David Pettit, an attorney at the Center for Biological Diversity’s Climate Law Institute, stressed that with the repeal, the Trump administration is unlawfully choosing big polluters at the expense of the public and the planet."
"We're suing to stop Trump from torching our kids' future in favor of a monster handout to oil companies," said Pettit. "Nobody but Big Oil profits from Trump trashing climate science and making cars and trucks guzzle and pollute more. Consumers will pay more to fill up, and our skies and oceans will fill up with more pollution. The EPA's rollbacks are based on political poppycock, not science or law, and the courts should see it that way."
Other organizations involved in the case include the American Public Health Association, American Lung Association, Center for Community Action and Environmental Justice, Environmental Defense Fund, Natural Resources Defense Council, Physicians for Social Responsibility, Public Citizen, Sierra Club, and more.
Also on Wednesday, 18 children and young adults from across the United States filed a separate petition at the same court challenging the EPA repeal. They are represented by Our Children's Trust and Public Justice, which have worked on various youth climate cases.
"My Catholic faith teaches me to care for all life and protect the most vulnerable, and it teaches that children are a gift," said lead petitioner Elena Venner. "I now struggle to imagine bringing a child into a world where the air is unsafe and the climate is increasingly unstable. The EPA's repeal of the endangerment finding violates my First Amendment right to practice my faith and my Fifth Amendment rights to life and liberty."
"I have asthma, and worsening pollution harms my health and makes it harder for me to breathe and live fully outdoors," Venner explained. "When the air is thick with the pollution of fossil fuel-burning cars and trucks and ever-increasing wildfire smoke, I feel it in my chest, and I am reminded that something as basic as breathing is no longer guaranteed. That is not the life today or the future my generation deserves."
"The only beneficiaries will be polluting industries, many of which are among President Trump’s largest donors,” the lawmakers wrote.
A group of 31 Democratic senators has launched an investigation into a new Trump administration policy that they say allows the Environmental Protection Agency to "disregard" the health impacts of air pollution when passing regulations.
Plans for the policy were first reported on last month by the New York Times, which revealed that the EPA was planning to stop tallying the financial value of health benefits caused by limiting fine particulate matter (PM2.5) and ozone when regulating polluting industries and instead focus exclusively on the costs these regulations pose to industry.
On December 11, the Times reported that the policy change was being justified based on the claim that the exact benefits of curbing these emissions were “uncertain."
"Historically, the EPA’s analytical practices often provided the public with false precision and confidence regarding the monetized impacts of fine particulate matter (PM2.5) and ozone," said an email written by an EPA supervisor to his employees on December 11. “To rectify this error, the EPA is no longer monetizing benefits from PM2.5 and ozone.”
The group of senators, led by Sen. Sheldon Whitehouse (D-RI), rebuked this idea in a letter sent Thursday to EPA Administrator Lee Zeldin.
"EPA’s new policy is irrational. Even where health benefits are 'uncertain,' what is certain is that they are not zero," they said. "It will lead to perverse outcomes in which EPA will reject actions that would impose relatively minor costs on polluting industries while resulting in massive benefits to public health—including in saved lives."
"It is contrary to Congress’s intent and directive as spelled out in the Clean Air Act. It is legally flawed," they continued. "The only beneficiaries will be polluting industries, many of which are among President [Donald] Trump’s largest donors."
Research published in 2023 in the journal Science found that between 1999 and 2020, PM2.5 pollution from coal-fired power plants killed roughly 460,000 people in the United States, making it more than twice as deadly as other kinds of fine particulate emissions.
While this is a staggering loss of life, the senators pointed out that the EPA has also been able to put a dollar value on the loss by noting quantifiable results of increased illness and death—heightened healthcare costs, missed school days, and lost labor productivity, among others.
Pointing to EPA estimates from 2024, they said that by disregarding human health effects, the agency risks costing Americans “between $22 and $46 billion in avoided morbidities and premature deaths in the year 2032."
Comparatively, they said, “the total compliance cost to industry, meanwhile, [would] be $590 million—between one and two one-hundredths of the estimated health benefit value."
They said the plan ran counter to the Clean Air Act's directive to “protect and enhance the quality of the Nation’s air resources so as to promote the public health and welfare,” and to statements made by Zeldin during his confirmation hearing, where he said "the end state of all the conversations that we might have, any regulations that might get passed, any laws that might get passed by Congress” is to “have the cleanest, healthiest air, [and] drinking water.”
The senators requested all documents related to the decision, including any information about cost-benefit modeling and communications with industry representatives.
"That EPA may no longer monetize health benefits when setting new clean air standards does not mean that those health benefits don’t exist," the senators said. "It just means that [EPA] will ignore them and reject safer standards, in favor of protecting corporate interests."