endangerment finding

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Climate Science Cross-cutting Issues

Responding to EPA’s Claim that U.S. Motor Vehicle Emissions Have a “De Minimis” Impact on Climate-Related Harms

  On February 12, 2026, the U.S. Environmental Protection Agency (EPA) issued a final rule rescinding the 2009 Greenhouse Gas Endangerment Finding and eliminating all federal greenhouse gas (GHG) emission standards for U.S. motor vehicles and engines. To justify this action, EPA has adopted an  interpretation of the Clean Air […]