The Trump administrations pick to head The Environmental Protection Agency, Scott Pruitt, has been a key architect of the legal battle against climate change policies. Mr. Pruitt is a longtime close ally of the fossil fuel industry, believes that climate change is a hoax, believes the Clean Power Act is a “war on coal” and has vowed to “cancel” the Paris Accords. The administration pick to head the Department of Labor, Andy Puzder, is...