Massachusetts Institute of Technology officials said U.S. President Donald Trump badly misunderstood their research when he cited it on Thursday to justify withdrawing the United States from the Paris Climate Agreement.

Trump announced during a speech at the White House Rose Garden that he had decided to pull out of the landmark climate deal, in part because it would not reduce global temperatures fast enough to have a significant impact.

"Even if the Paris Agreement were implemented in full, with total compliance from all nations, it is estimated it would only produce a two-tenths of one degree Celsius reduction in global temperature by the year 2100," Trump said.

"Tiny, tiny amount."

That claim was attributed to research conducted by MIT, according to White House documents seen by Reuters. The Cambridge, Massaschusetts-based research university published a study in April 2016 titled "How much of a difference will the Paris Agreement make?" showing that if countries abided by their pledges in the deal, global warming would slow by between 0.6 degree and 1.1 degrees Celsius by 2100.

"We certainly do not support the withdrawal of the U.S. from the Paris agreement," said Erwan Monier, a lead researcher at the MIT Joint Program on the Science and Policy of Global Change, and one of the study's authors.