BERLIN, GERMANY - JUNE 02:  Members of the German Greens Party (Buendnis 90/Die Gruenen), including party co-heads Katrin Goering-Eckardt and Cem Oezdemir (C), protest outside the U.S. Embassy against the announcement by U.S. President Donald Trump the day before that he will pull the USA out of the Paris Agreement on June 2, 2017 in Berlin, Germany. Politicians and governments across Europe have reacted with dismay and frustration over Trump's decision to pull the world's second biggest emitter of greenhouse gases out of the Paris Agreement. Nearly all the world's acountries signed the agreement in 2015 with the goal of setting a limit to global warming in an effort to counter climate change.  (Photo by Sean Gallup/Getty Images)