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Last Update: 10/26/2026 at 11:33 PM EST
Power-Plant Climate Regulation
Coverage from Arnold & Porter, ProPublica, and others
U.
S. power-plant climate regulation centers on EPA standards for greenhouse-gas emissions from coal- and natural-gas-fired facilities and the legal authority to impose them under the Clean Air Act. The regulatory framework has included carbon-capture or closure pathways, emissions reporting, and related methane requirements. Its rollback has raised questions about grid reliability, industry costs, future administrations’ authority, and the durability of federal climate rules, while environmental and public-health groups point to potential increases in greenhouse gases and conventional pollutants. Litigation and state permitting decisions are important channels through which these disputes play out.
Key Articles3 of 86 articles
If you read one thing
This broad overview introduces the federal rollback and its stakes for power-plant emissions and regulation.
Latest development
It covers the multistate legal challenge, a major development that tests EPA’s authority and brings the dispute into court.
The counter-case
It presents the repeal’s savings rationale alongside projected health and climate costs, adding the economic case to the contested picture.
Key Issues
Federal power-plant carbon controls are being dismantled
EPA has repealed most Biden-era greenhouse-gas standards for coal- and gas-fired plants and is pursuing proposals to remove remaining requirements and limit future federal regulation. The repeal is finalized, while the broader proposals remain pending.
Stable
Projected pollution and health costs define the stakes
Analyses project higher emissions and pollution-related harms if the standards are removed, while EPA cites compliance and electricity-cost savings. These are modeled effects and competing estimates, not measured impacts of the repeal to date.
The repeal is under broad legal challenge
Environmental and public-health groups, joined by more than 20 states and several cities, are challenging the rollback in federal court. The cases contest EPA’s authority and its treatment of scientific, technical, and cost evidence; outcomes remain unresolved.
Stable
Key Numbers
Jan. 1, 2032
Biden rule compliance date
“The Trump EPA’s new rule says a system that captures 90% of a power plant’s carbon dioxide emissions, as contemplated by the Biden rule, has not been adequately demonstrated and is not reasonably priced. The agency also said a large network of pipelines and sequestration facilities would need to be built, which is unlikely before the Biden rule’s Jan. 1, 2032 compliance date.”
$370 billion
climate and public-health net benefits
“It projected up to $370 billion in climate and public-health net benefits over two decades.”
1 billion metric tonnes
projected greenhouse-gas emissions reduction
“Reuters reported that the standards were projected to cut greenhouse gas emissions by about 1 billion metric tonnes by 2047.”
1,200 deaths
premature deaths prevented
“The Biden administration estimated that its power-plant rules would have prevented up to 1,200 premature deaths and 360,000 asthma attacks in 2035 alone.”
30,000 deaths
deaths potentially prevented by the targeted rules
“An Associated Press analysis based on prior EPA assessments and other research found that the targeted rules could prevent an estimated 30,000 deaths and save $275 billion annually while in effect.”
Contested Issue
Would repealing the power-plant standards produce net economic benefits, or would the resulting health and climate damages outweigh the savings?
EPA estimates substantial compliance or consumer savings from repeal, while other analyses estimate substantial avoided health and climate costs from retaining the standards or damages from added pollution. The estimates use different scopes and accounting assumptions, so they are not directly comparable, but they support incompatible conclusions about the overall economic case.
Savings from repeal
EPA estimates that repeal would reduce compliance costs and produce substantial consumer or economy-wide savings.
Benefits of retaining standards
Other analyses estimate that the standards' health and climate benefits, or the damages caused by repeal, could outweigh the savings attributed to repeal.
Looking Back
366 Day Timeline
Oct '25
Nov '25
Feb '26
Apr '26
May '26
Aug '26
Oct '26
The Story So Far
New development
Opponents turn threatened challenges into a multistate lawsuit
More than 20 states and several cities have filed a federal challenge to the EPA’s power-plant emissions rollback, moving the dispute from anticipated litigation to a court test of the agency’s Clean Air Act authority.
Previously
The U.S. Environmental Protection Agency has moved to repeal greenhouse-gas limits for coal- and gas-fired power plants and proposed broader restrictions on federal regulation of their emissions. The changes reverse Biden-era rules and could affect a major source of U.S. climate pollution; the administration cites cost and grid concerns, while environmental groups warn of higher emissions and have signaled legal challenges. Other material concerns separate EPA actions on emissions reporting and Hawaiʻi power-plant pollution, making the broader regulatory picture less unified.
History
10/03/2026
The rollback has advanced from proposed or pending action to repeal of most standards, and opponents have now filed a formal court challenge.
All Articles86 articles
Important
The U.S. Environmental Protection Agency has proposed in the United States to repeal most federal greenhouse gas reporting rules, reshaping CCUS incentives and methane oversight.
10/13/2025 • Clean Energy & Emissions • General
During the Trump administration, the U.S. Environmental Protection Agency proposed weakening methane inspections and equipment requirements for more than 700,000 stripper wells across the United States.
9/11/2026 • Policy, Politics & Governance • General
In a 2026 policy action, the Trump administration's EPA repealed U.S. power-plant greenhouse-gas rules, projecting lower electricity costs while excluding health and climate damages.
9/22/2026 • Policy, Politics & Governance • General
The EPA is proposing to repeal power-plant greenhouse-gas standards in a federal rulemaking, a change that groups warn could increase emissions from Georgia generators.
9/27/2026 • Policy, Politics & Governance • General
In 2025, the Trump administration's EPA proposed repealing power plant emissions standards, a change advocates say could increase emissions from coal and new gas generation in Georgia.
9/21/2026 • Policy, Politics & Governance • General
The U.S. Supreme Court limited EPA authority to regulate power plant carbon emissions in Washington, D.C., on June 30, 2022, affecting federal climate policy nationwide.
9/9/2026 • Policy, Politics & Governance • General
EPA Administrator Lee Zeldin said greenhouse-gas rules should await Congress, but policy experts cited Energy Policy Act of 2005 and EISA authority for emissions reductions via efficiency and vehicle standards.
4/6/2026 • Policy, Politics & Governance • General
More than 20 states and several cities sued the EPA on October 1 in the U.S. Court of Appeals for the District of Columbia over its proposed repeal of power plant greenhouse gas standards.
10/2/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency announced in September that it would relinquish greenhouse gas regulatory authority over power plants in the United States.
9/27/2026 • Policy, Politics & Governance • General
Environmental and public health groups sued in 2025 against the Trump administration's proposed EPA repeal, warning that Georgia Power coal and gas plants could emit substantially more pollution in Georgia and Alabama.
9/21/2026 • Policy, Politics & Governance • General
Environmental and public health groups petitioned the D.C. Circuit in Washington, D.C., to challenge the EPA repeal of greenhouse gas standards for fossil fuel power plants.
9/18/2026 • Policy, Politics & Governance • General
The Trump administration completed U.S. EPA climate-regulation rollbacks in 2025, weakening power-plant emissions controls nationwide and lowering projected clean-energy deployment and emissions reductions through 2035.
9/16/2026 • Policy, Politics & Governance • General
The Trump administration is now repealing Biden-era federal power-sector carbon limits in the United States, potentially delaying coal retirements as data-center electricity demand rises.
9/16/2026 • Policy, Politics & Governance • General
The EPA announced plans in Houston to repeal fossil-fuel power-plant climate standards and study pharmaceuticals in U.S. drinking water under the Trump administration.
9/15/2026 • Policy, Politics & Governance • General
On September 17, the Natural Resources Defense Council and Clean Air Task Force asked the US Court of Appeals for the District of Columbia Circuit to review the EPA's repeal of power plant carbon capture standards.
9/25/2026 • Policy, Politics & Governance • General
The Natural Resources Defense Council and Clean Air Task Force petitioned the US Court of Appeals for the District of Columbia Circuit on September 17 to challenge the Trump EPA's reversal of carbon capture-based power-plant standards.
9/25/2026 • Policy, Politics & Governance • General
In 2025, the U.S. Environmental Protection Agency under Lee Zeldin began repealing federal greenhouse gas standards for power plants and vehicles, while state climate policies faced federal challenges across the United States.
9/21/2026 • Policy, Politics & Governance • General
The US Environmental Protection Agency finalized repeal of Clean Air Act Section 111(d) greenhouse gas standards for power plants in the United States, following rescission of the endangerment finding.
9/14/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency is expected to rescind fossil-fuel power plant carbon standards in Houston during a Group of 20 energy ministers meeting.
9/14/2026 • Policy, Politics & Governance • General
Northwestern University experts said the Trump administration's rollback of U.S. power plant pollution limits could increase emissions and health risks, especially in Chicago communities.
9/1/2026 • Policy, Politics & Governance • General
Georgia, Ohio, Pennsylvania, and North Dakota state regulators include EPA greenhouse gas standards in new gas-plant permits while EPA repeal plans proceed under review.
6/26/2026 • Policy, Politics & Governance • General
The U.S. EPA partially denied Hawaiʻi's 2024 Regional Haze implementation plan, rejecting Hawaiian Electric oil-plant shutdown deadlines for Class I parks in 2028.
5/24/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency on Jan. 9 rejected Colorado's regional haze plan, requiring continued operation of several coal plants to maintain electric grid reliability.
1/16/2026 • Policy, Politics & Governance • General
Inside Climate News describes how, during the Trump administration, EPA proposed a nationwide Clean Water Act Section 401 rule to streamline permitting for large U.S. energy projects.
1/14/2026 • Policy, Politics & Governance • General
On Sept. 14 in Houston, EPA Administrator Lee Zeldin announced the repeal of most federal power-plant emissions standards and proposed ending remaining requirements.
9/21/2026 • Policy, Politics & Governance • General
The Trump administration's EPA announced on September 14 in Houston that it would repeal U.S. fossil-fuel power-plant pollution limits, prompting lawsuits over climate and health protections.
9/18/2026 • Policy, Politics & Governance • General
The U.S. administration finalized repeal of Biden-era carbon standards for coal and gas power plants while proposing to withdraw EPA authority over greenhouse-gas regulation.
9/17/2026 • Policy, Politics & Governance • General
The Trump administration finalized repeal of U.S. power-plant carbon standards and proposed removing remaining greenhouse gas controls during a Sept. 14 energy meeting in Houston.
9/16/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency, led by Lee Zeldin, announced in Houston that most federal greenhouse-gas requirements for coal and gas power plants would be repealed.
9/16/2026 • Policy, Politics & Governance • General
On Monday in the United States, the Trump administration's Environmental Protection Agency announced plans to repeal power-plant greenhouse-gas standards and revoke remaining federal requirements.
9/15/2026 • Policy, Politics & Governance • General
The EPA moved on September 14 in the United States to repeal greenhouse gas rules for coal and natural gas power plants, prompting expected court challenges.
9/15/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency announced in 2025 in Houston that it would repeal U.S. power-plant greenhouse gas rules and propose limits on future climate regulation.
9/14/2026 • Policy, Politics & Governance • General
The Trump administration and EPA repealed major US power-plant greenhouse gas limits on September 14 in Houston and proposed eliminating remaining standards.
9/14/2026 • Policy, Politics & Governance • General
The Trump EPA is expected to repeal Biden-era carbon emissions rules for U.S. coal and natural gas power plants during a policy action potentially timed with a G20 energy ministers meeting in Houston.
9/14/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency is expected to announce in Houston a repeal of greenhouse gas limits for US coal- and gas-fired power plants under President Donald Trump.
9/14/2026 • Policy, Politics & Governance • General
The Trump administration is expected to announce in Houston that the Environmental Protection Agency will repeal Biden-era carbon standards for US coal and gas power plants, prompting lawsuits from environmental groups.
9/14/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency announced in Houston that the Trump administration would repeal Biden-era greenhouse-gas standards for coal- and gas-fired power plants.
9/14/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency proposed in the United States repealing Biden-era power-plant greenhouse gas rules, citing Clean Air Act limits and projected consumer savings.
9/14/2026 • Policy, Politics & Governance • General
During the current Trump administration, EPA Administrator Lee Zeldin announced in Houston a rollback of power-plant greenhouse-gas limits and a legal challenge to Clean Air Act climate authority.
9/14/2026 • Policy, Politics & Governance • General
The Trump administration plans to repeal Biden-era power-plant greenhouse-gas standards in the United States, with EPA Administrator Lee Zeldin expected to announce the rollback in Houston.
9/14/2026 • Policy, Politics & Governance • General
The Trump administration is proposing to repeal U.S. power-plant climate standards and limit EPA authority, prompting expected lawsuits from Democratic-led states and environmental groups.
9/14/2026 • Policy, Politics & Governance • General
The U.S. EPA proposed repealing Biden-era carbon standards for coal- and gas-fired power plants in Houston, reversing federal power-sector climate regulation under President Donald Trump.
9/14/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency announced power-plant climate rule rollbacks in Houston in 2026, potentially allowing higher greenhouse-gas emissions and prompting legal challenges.
9/14/2026 • Policy, Politics & Governance • General
The US Environmental Protection Agency announced in 2025 that it would repeal greenhouse gas limits for coal- and gas-fired power plants, drawing opposition from health and environmental groups nationwide.
9/14/2026 • Policy, Politics & Governance • General
The EPA announced in Houston that it would repeal Biden-era carbon standards for U.S. coal- and gas-fired power plants and seek to block future federal regulation.
9/14/2026 • Policy, Politics & Governance • General
Since January 2025, the Trump administration and EPA have weakened US power-plant and vehicle climate rules, potentially increasing national emissions through 2040.
9/16/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency finalized most of its repeal of federal carbon limits for coal and natural gas power plants on September 14, 2026, in the United States.
9/16/2026 • Policy, Politics & Governance • General
The Trump administration EPA is rolling back US power-plant greenhouse-gas limits, potentially increasing emissions, health risks, and electricity costs during the current policy cycle.
9/16/2026 • Policy, Politics & Governance • General
The Trump administration announced a proposed repeal of U.S. coal and gas power-plant carbon standards in Houston, Texas, on September 14, 2026.
9/15/2026 • Policy, Politics & Governance • General
On Monday in the United States, EPA Administrator Lee Zeldin announced repeal of most Biden-era power-plant greenhouse-gas standards while states and environmental groups prepared legal challenges.
9/15/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency finalized repeal of Biden-era power-plant carbon standards in the United States, potentially extending coal and gas operations as data-center electricity demand rises.
9/15/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency is expected in 2025 to repeal power-plant greenhouse gas limits at a possible G20 energy meeting in Houston, prompting legal challenges.
9/14/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency announced in Houston that it would repeal the 2024 power-plant greenhouse gas rule and other climate regulations, prompting expected environmental lawsuits.
9/14/2026 • Policy, Politics & Governance • General
The EPA announced in Houston that it was repealing Biden-era power-plant greenhouse gas limits and proposing to restrict future regulation of stationary-source climate pollution.
9/14/2026 • Policy, Politics & Governance • General
The Trump administration's EPA moved in 2025 to repeal U.S. power-plant greenhouse-gas standards, challenging the Clean Air Act basis for climate regulation.
9/14/2026 • Policy, Politics & Governance • General
The Trump administration is repealing Biden-era greenhouse gas limits for U.S. coal and natural gas power plants, announced by EPA Administrator Lee Zeldin in Houston, Texas, amid planned legal challenges.
9/14/2026 • Policy, Politics & Governance • General
The Trump administration is repealing Biden-era U.S. power-sector carbon regulations, potentially extending coal-plant operations as data-center demand increases electricity needs.
9/14/2026 • Policy, Politics & Governance • General
Interesting
The EPA finalized repeal of the 2024 Carbon Pollution Standards under the Trump administration in the United States, with supporters presenting the change as a way to reduce energy costs.
9/26/2026 • Policy, Politics & Governance • General
Twenty-one states, the District of Columbia, and several cities petitioned the D.C. Circuit on Thursday to overturn the EPA's repeal of power plant emissions limits.
10/1/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency repealed Biden-era power-plant carbon limits in the United States while clean-energy companies and technology firms pursued geothermal, solar, and grid-flexibility projects.
9/18/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency recently repealed U.S. power-plant greenhouse-gas limits, prompting Idaho environmental groups to warn of longer fossil-fuel use and legal challenges.
9/17/2026 • Policy, Politics & Governance • General
On September 14, the U.S. Environmental Protection Agency repealed power-plant climate pollution limits in the United States, prompting Katharine Hayhoe to warn of higher climate risks.
9/15/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency is expected to remove greenhouse gas limits for U.S. power plants, a decision E2 says could increase emissions and economic costs.
9/14/2026 • Policy, Politics & Governance • General
The Trump EPA reportedly plans to repeal power-plant carbon standards in the United States, prompting Margie Alt and the Climate Action Campaign to warn of increased health and climate risks.
9/14/2026 • Policy, Politics & Governance • General
Twenty-one states, the District of Columbia, and several cities challenged the EPA's power plant emissions-rule repeal Thursday in the U.S. Court of Appeals for the District of Columbia Circuit.
10/2/2025 • Policy, Politics & Governance • General
The EPA proposed eliminating remaining greenhouse gas standards for US power plants in 2020s America as electricity demand rises, prompting environmental groups to prepare legal challenges.
9/14/2026 • Policy, Politics & Governance • General
On September 14, the U.S. Environmental Protection Agency repealed most federal power-plant carbon standards in Houston while European manufacturers and investors reassessed climate requirements and demand.
9/16/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency announced plans in the United States to repeal coal and natural gas power-plant greenhouse gas limits, prompting opposition from Colorado officials over costs, pollution, and climate risks.
9/15/2026 • Policy, Politics & Governance • General
The Trump Environmental Protection Agency plans to repeal U.S. power-plant greenhouse-gas regulations in Houston, potentially extending coal operations and enabling new gas-fired plants.
9/15/2026 • Policy, Politics & Governance • General
The Trump administration is repealing US power-plant greenhouse gas and toxic-pollution standards through the Environmental Protection Agency, weakening climate and public-health regulation nationwide.
9/15/2026 • Policy, Politics & Governance • General
The Environmental Protection Agency on Monday repealed Biden-era power-plant carbon limits in the United States and proposed ending remaining greenhouse-gas regulations during G20 energy meetings in Houston, Texas.
9/14/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency announced Monday that it would repeal greenhouse gas limits for coal- and natural-gas-fired power plants nationwide, prompting opposition and expected lawsuits.
9/14/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency announced in Houston that the Trump administration would repeal Biden-era power-plant carbon limits and block future climate-focused regulation.
9/14/2026 • Policy, Politics & Governance • General
The Trump administration and EPA Administrator Lee Zeldin announced proposed repeal of Biden-era U.S. power-plant greenhouse gas standards in Washington, D.C., citing up to $670 billion in compliance savings.
9/15/2026 • Policy, Politics & Governance • General
The US Environmental Protection Agency is preparing to repeal carbon pollution standards for coal- and gas-fired power plants during the G20 energy ministers meeting in Houston, Texas.
9/14/2026 • Policy, Politics & Governance • General
Environmental and public-health organizations filed a September 17 D.C. Circuit petition challenging EPA's rescission of existing fossil-fuel power-plant carbon standards in Washington, D.C.
9/21/2026 • Policy, Politics & Governance • General
Fossil fuel companies and trade groups urged EPA in 2025 to retain GHGRP while loosening methane rules as Washington considered repeal.
8/18/2026 • Policy, Politics & Governance • General
Illinois officials respond to Trump administration EPA policy changes after announcement of endangerment finding repeal, prompting legal action amid uncertainty for coal power plant closures.
4/11/2026 • Policy, Politics & Governance • General
EPA proposed weakened coal ash disposal rules in the 2020s, easing groundwater monitoring and cleanup requirements at some US sites amid criticism.
4/9/2026 • Policy, Politics & Governance • General
EPA, under the Trump administration, proposes rollback of heavy-duty truck and bus emissions rules in the United States, replacing engine derate requirements with driver alerts.
7/9/2026 • Policy, Politics & Governance • General
EPA rolls back 2024 emissions standards for coal and oil plants in the United States, citing consumer savings while health and climate benefits are debated.
2/28/2026 • Policy, Politics & Governance • General
Since January 2025, Donald Trump’s administration has weakened US federal greenhouse gas controls by reversing EPA power plant and vehicle standards.
9/15/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency is reportedly preparing to repeal Biden-era emissions standards for coal- and gas-fired power plants in the United States as soon as Monday.
9/14/2026 • Policy, Politics & Governance • General
The Trump administration announced that the Environmental Protection Agency will seek to end federal regulation of greenhouse gas emissions from coal and gas power plants in the United States, a move expected to face court challenges.
9/14/2026 • Policy, Politics & Governance • General
The U.S. Environmental Protection Agency finalized repeal of 2024 carbon pollution standards for existing coal and new gas power plants in the United States.
9/14/2026 • Policy, Politics & Governance • General
Economists from several U.S. universities reported Thursday in Science that correcting EPA assumptions could turn vehicle emissions standards repeal into a $670 billion national cost.
8/27/2026 • Policy, Politics & Governance • General