E.P.A. Faces Suit Over Repeal of Endangerment Finding

Environmental and health groups sued the E.P.A. on Wednesday in the U.S. Court of Appeals for the District of Columbia Circuit, challenging the agency’s elimination of the endangerment finding. Last week the E.P.A. erased the scientific determination that had given it authority to regulate greenhouse gases.

Cars are a top emitter of the gases, which cause climate change. The lawsuit says the agency’s move to remove limits on greenhouse gases from vehicles and other sources was illegal and rehashes arguments the Supreme Court rejected in the 2007 case Massachusetts v.

E.P.A. In that decision the justices said the E.P.A. had to determine whether greenhouse gases posed a threat to public health under the 1970 Clean Air Act and, if so, regulate them; in 2009 the E.P.A. issued the endangerment finding that allowed the government to limit emissions.

United States, District of Columbia

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