U.S. formally exits Paris Climate Agreement aiming to curb climate change

Berlin • The United States on Wednesday formally left the Paris Agreement, a global pact it helped forge five years ago to avert the threat of catastrophic climate change.The move, long threatened by U.S. President Donald Trump and triggered by his administration a year ago, further isolates Washington in the world but has no immediate impact on international efforts to curb global warming.Still, the U.N. agency that oversees the treaty, France as the host of the 2015 Paris t