Brain drain at the EPA
Administrator of the Environmental Protection Agency Scott Pruitt speaking at the 2017 Conservative Political Action Conference (CPAC) in National Harbor, Maryland. (Gage Skidmore/Flickr)

More than 700 people have left the Environmental Protection Agency since President Donald Trump took office, a wave of departures that puts the administration nearly a quarter of the way toward its goal of shrinking the agency to levels last seen during the Reagan administration.