EPA Proposes Rescinding 2009 Greenhouse Gas Endangerment Finding

The United States Environmental Protection Agency has proposed rescinding the 2009 endangerment finding, the scientific conclusion that greenhouse gases contribute to global warming and harm human health. This finding serves as the legal foundation for federal climate regulations, including vehicle emission standards and power plant rules.

EPA Administrator Lee Zeldin characterized the proposal as "driving a dagger through the heart of climate change religion." During a CNN interview, Zeldin argued that the 2009 finding relied on pessimistic scientific scenarios that did not materialize and asserted that policy should reflect 2025 facts. He specifically noted that the proposal targets mobile sources and vehicles, while citing Supreme Court rulings in Loper Bright and West Virginia v. EPA to argue that agencies cannot implement trillion-dollar regulations without explicit congressional authorization.

The administration further contends that U.S. emissions are too small a global share to justify domestic rules and cites a Department of Energy report suggesting global warming may be beneficial. Simultaneously, President Donald Trump signed an executive order declaring the primacy of fossil fuels and directed the Department of Justice to challenge state-level climate policies, specifically those in California.

Critics and legal experts argue the move repudiates federal authority to fight climate change and contradicts the 2007 Supreme Court ruling in Massachusetts v. EPA. Opponents claim the administration is relying on outlier science while ignoring the global scientific consensus.