Environmental economists are warning that the Trump EPA’s proposal to repeal all power plant greenhouse gas standards will impose roughly double the net costs to society than the agency projected, and potentially far more, due to projected high electricity demand and Republicans’ recent law scaling back clean energy tax credits. “Considering both climate and health damages, this regulatory repeal is expected to cost the United States $198--855 billion,” says an Aug. 7 report from Resources for the Future (RFF) researchers...