COP 23 United Nations Climate Conference In Bonn

BONN, GERMANY - NOVEMBER 11: Climate activists join a discussion at the America's Pledge launch event at the U.S. "We Are Still In" pavilion at the COP 23 United Nations Climate Change Conference on November 11, 2017 in Bonn, Germany. America's Pledge is a report detailing the efforts of U.S. states, cities and businesses to keep America on line in fulfilling goals towards carbon reduction set out by the Paris Climate Agreement. U.S. President Donald Trump has announced that the U.S. is withdrawing from the accord and the White House is sending its own delegation of fossil fuel supporters to the COP 23 conference next week to make the case for the continued role of coal and petroleum in world energy needs. (Photo by Lukas Schulze/Getty Images)