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?

President Donald Trump pulled the US out of the Paris Agreement. The stakes couldn’t be higher for the planet and our ability to adapt.

The Paris agreement is a mostly voluntary climate pact originally written to both try to reduce warming and withstand the changing political winds in the U.S.