Donald Trump has once again taken the US out of the landmark Paris climate agreement, abandoning the global effort to limit climate change. Trump signed an executive order today to exit.

President Donald Trump says he will again withdraw the United States, a top carbon polluting nation, from the landmark Paris climate agreement, dealing a blow to worldwide efforts to combat global warming and once again distancing the U.

WASHINGTON (Reuters) - President Donald Trump will order the U.S. to withdraw from the Paris climate agreement, the White House said on Monday, once again placing the world's top historic emitter of greenhouse gas emissions outside of the global pact aimed at pushing nations to tackle climate change through domestic actions.