The Trump administration is preparing a sweeping rollback of U.S. climate regulation by revoking the EPA’s 2009 endangerment finding. That determination has underpinned federal limits on greenhouse gases for more than a decade. Officials say ending it would slash regulatory costs, ease energy prices, and prioritize reliability amid grid strain. Critics warn it would weaken federal climate oversight.
Trump’s EPA plans to repeal the 2009 climate “endangerment finding,” dismantling the legal basis for federal greenhouse-gas rules. Officials call it the biggest deregulation ever, aiming to cut costs, boost energy supply, and stabilize the grid. #Deregulation #EnergyPolicy pic.twitter.com/BjdhWUE4VR
— Matthew Brady (@mattbrady775) February 10, 2026
- The Environmental Protection Agency, under Administrator Lee Zeldin, plans to revoke the 2009 “endangerment finding.”
- The finding, finalized during the Barack Obama administration, declared six greenhouse gases a threat to public health and enabled broad climate regulation under the Clean Air Act.
- Repeal would remove the legal foundation for many federal greenhouse-gas regulations, though it would not immediately cancel all existing emissions rules.
- The rollback could be announced this week and is described by Zeldin as “the largest act of deregulation in U.S. history.”
- President Donald Trump ordered a review of the finding on his first day back in office; officials estimate potential regulatory cuts approaching $1 trillion.
- Administration officials argue deregulation will lower energy costs, support grid reliability, and counter recent winter grid stress in the Mid-Atlantic and Northeast.



