President-elect Donald Trump has chosen ex-Oklahoma attorney general Scott Pruit to run the Environmental Protection Agency. Pruit, a close ally of the fossil fuel industry, has firmly opposed Barack Obama's climate change policies. Trump has not shied away from criticizing the established science of human-caused global warming and his choice of Pruit reaffirms this. “During the campaign, Mr. Trump regularly threatened to dismantle the E.P.A. and roll back many of the gains made to reduce Americans’ exposures to industrial pollution, and with Pruitt, the president-elect would make good on those threats,” said Ken Cook, head of the Environmental Working Group