The Senate confirmed Scott Pruitt to run the Environmental Protection Agency over the objections of Democrats and environmentalists worried he will gut the agency, as the administration readies executive orders to ease regulation on drillers and miners. Photo: Reuters/Carlos Barria The new head of the Environmental Protection Agency said on Thursday he is not convinced that carbon dioxide from human activity is the main driver of climate change and said he wants Congress to weigh in on whether CO2 is a harmful pollutant that should be regulated.