Scott Pruitt, administrator of the Environmental Protection Agency (EPA), right, shakes hands with U.S. President Donald Trump during an announcement in the Rose Garden of the White House in Washington, D.C., U.S., on Thursday, June 1, 2017. Trump announced the U.S. would withdraw from the Paris climate pact and that he will seek to renegotiate the international agreement in a way that treats American workers better. Photographer: Andrew Harrer/Bloomberg via Getty Images