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 said Monday he will again withdraw the United States from the landmark Paris climate agreement, dealing a blow to worldwide efforts to combat global warming and once again distancing the U.S. from its closest allies.

China’s Foreign Ministry criticized President Trump’s decision to withdraw from the Paris climate accord and the World Health Organization, offering an initial look at how Beijing intends to present itself as a force for stability in global affairs during the new administration.