Reportedly, Trump has even told EPA administrator Scott Pruitt that he plans to remove the US from the agreement, a decision of which Pruitt most certainly approves. Trump left the G7 summit in Sicily on Saturday without reaffirming his commitment to the accord, unlike the other six world leaders in attendance.
The Paris accord, which was agreed on in December of 2015 by almost 200 countries, aims to keep global temperatures from rising more than 2° C (3.6° F) above pre-industrial levels.
The only other two countries in the United Nations that did not support the deal are Nicaragua and Syria.
Trump tweeted Wednesday that he "will be announcing my decision on the Paris Accord over the next few days".
The United States is the world's second-biggest carbon dioxide emitter behind China.
LeBron's critics return after stinky Game 3 performance
One just wishes Kerr could be in the real heat of the battle for Kerr's sake, and that this horrific affliction would be no more. Can Durant win his first? Did it quiet down after the Lakers' championship window effectly closed a couple of years later? No.
"It also makes the United States an outlier among the world's nations, almost all of whom support the climate change accord", it said. "It is absolutely essential that the world implements the Paris Agreement".
Mr Trump had vowed during his campaign to "cancel" the Paris deal within 100 days of becoming president, as part of an effort to bolster United States oil and coal industries.
There have been influential voices urging Trump not to ditch the Paris accord.
European leaders pressed Trump to stay in the Paris climate accord during the president's overseas trip last week.
According to Axios news outlet, which first reported the withdrawal, Trump's decision was influenced by a letter from 22 Republican senators, including Majority Leader Mitch McConnell, who have called for an exit from the landmark climate deal. Like his boss, Mr. Pruitt has questioned the consensus of climate scientists that the Earth is warming and that man-made climate emissions are to blame.
But the efforts to persuade Trump were "very unsatisfactory", according to German chancellor Angela Merkel, who observed: "Here we have the situation that six members, or even seven if you want to add the European Union, stand against one".