https://apnews.com/1331bc30021756454dda8eb7ff3c1075 > BERLIN (AP) — The United States on Wednesday formally left the Paris Agreement, a global pact forged 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 the United States in the world but has no immediate impact on international efforts to curb global warming.