A proposal by the Trump administration’s Environmental Protection Agency seeks to rescind the 2009 “endangerment finding” that classified greenhouse gases as a health threat under the Clean Air Act.

The move would dismantle the legal basis for major climate regulations targeting vehicle emissions, power plants, and methane leaks. EPA Administrator Lee Zeldin described it as “the greatest day of deregulation our nation has seen,” framing it as a boost for energy jobs and lower costs. 7/24/2025