Trump flouts science to revoke landmark US climate finding, calling it ‘giant scam’

US President Donald Trump on Thursday revoked a landmark scientific finding underpinning US regulations to curb planet-warming pollution, marking his biggest rollback of climate policy to date. The repeal of the Environmental Protection Agency’s 2009 “endangerment finding” was paired with the immediate elimination of greenhouse gas standards on automobiles. But it also places a host of other climate rules in jeopardy, including carbon dioxide emissions from power plants and methane leaks for oil...