According to two senior U.S. officials, President Donald Trump is expected to announce the United States’ withdrawal from the Paris Climate Agreement, which was signed on April 22, 2016, and began to take effect on November 4, 2016. If true, the decision would be a huge departure from the position of the United States’ European allies. The news comes just days after Trump’s first overseas trip as President, which included meeting with European heads of states as well as a visit to NATO headquarters in Brussels, Belgium.

Trump’s decision to withdraw will likely be met with harsh criticism both in the U.S. and around the world. While abroad, several European leaders including German Chancellor Angela Merkel and newly-elected French President Emmanuel Macron, tried to persuade Trump to not withdraw, citing the various emissions restrictions that the agreement includes. The aims of the agreement are to not let the global average temperature raise 2 degrees celsius above pre-industrial levels and to increase the ability to adapt to adverse effects of climate change.

The United States’ withdrawal would also be a huge departure from most of the developed world, as 146 other countries are part of the agreement. Of the involved countries, the U.S. is one the biggest contributors of carbon emissions in the environment due to its high amount of industrial factories. Without the U.S. in the deal, scientists agree that temperatures will rise, which could cause rising seas, droughts, crop failures, and stronger and more deadlier storms.

It still remains to be seen whether the U.S. will drop out for sure or not. President Trump tweeted when he will make the announcement, saying, “I will be announcing my decision on Paris Accord, Thursday at 3:00 P.M. The White House Rose Garden. MAKE AMERICA GREAT AGAIN!”