President Donald Trump on his first day in office again withdrew the U.S. from a landmark global pact to fight climate change. So what is the Paris Agreement? And what happens to it now?

Trump is pulling America out of the Paris Agreement, leaving the U.S. as the only major emitter not part of the treaty. It's a loss for U.S. businesses and the planet.

President Donald Trump announced that he was withdrawing the U.S. from the Paris Climate Agreement, the Washington Examiner reported. The move was among the numerous executive orders Trump signed on his first day in office after his inauguration. The new president called the climate agreement unfair and costly while announcing the decision.