A Rulebook Unwritten, and a Court Fight Ahead: EPA to Repeal Obama-era Policy

A certain Washington drama is back onstage, with a familiar prop in the spotlight: a scientific determination from 2009 that became, in time, a legal foundation. The Trump Administration is preparing to repeal that Obama-era determination — the EPA’s “endangerment finding” — and U.S. officials say it could become the most far-reaching rollback of U.S. climate policy to date. The endangerment finding concluded that six greenhouse gases pose a threat to public health and welfare. It was, in effect, the prerequisite that enabled the agency to regulate greenhouse-gas emissions from new motor vehicles under the Clean Air Act. And now


