The U.S. Environmental Protection Agency plans to repeal all greenhouse gas emission standards for light-duty, medium-duty, and heavy-duty vehicles and engines in the coming days after it removes the scientific finding that justified those rules,

This move effectively strips the EPA of its legal basis to regulate CO₂ and other vehicle emissions under the Clean Air Act. Reversing the endangerment finding jeopardizes the

The EPA is advancing a proposal to reverse its 2009 “endangerment finding,” a legal determination that greenhouse gas emissions pose a threat