An Inconvenient Truth, which followed Gore as he worked tirelessly to convince USA legislators and the general public of the impending catastrophic events resulting from climate change, was critically acclaimed, winning 32 awards and was nominated for 11 more.
But Cohn, Trump's chief White House economic adviser, told reporters during the trip overseas that the president's views on climate change were "evolving" following the discussions with European leaders.
Trump's decision sparked an instant wave of indignation both at home and overseas, with Obama saying the move meant the United States was "joining a handful of nations that reject the future".
The agreement came about after The United Nations Intergovernmental Panel on climate Change concludes with 95% confidence that the emissions humans have been creating were "extremely likely to have been the dominant cause of the observed warming since the mid-20th century".
However, Trump declared, emphasizing every word: "As of today, the United States will cease all implementation of the nonbinding Paris accord".
"Generations from now, Americans will look back at Donald Trump's decision to leave the Paris Agreement as one of the most ignorant and unsafe actions ever taken by any president", Sierra Club executive director Michael Brune said in a statement. For example, soon after the announcement, 61 USA mayors, calling themselves the "Climate Mayors", released a statement saying they would continue to uphold the goals set by the Paris agreement, in spite of the president's idiotic decision. But Obama says he's confident nonetheless that US cities, states and businesses will fill the void by taking the lead on protecting the climate.
Abandoning the pact was one of Trump's principal campaign pledges.
Still, Cohn said that the carbon levels agreed to by the prior administration "would be highly crippling to the US economic growth", and if the president had to choose between limiting carbon and economic growth, "growing our economy is going to win".
That's according to multiple congressional officials and others briefed by the White House on the decision.
Those briefed by the White House insisted on anonymity in order to discuss the matter ahead of Trump's announcement Thursday afternoon in the Rose Garden.
"The Paris agreement was created to be flexible so that parties could respond to changing domestic circumstances", Andrew Light, a distinguished senior fellow at the World Resources Institute told ABC News.
"We hope that the hard work of those who made the deal happen will not be in vain".
Chinese Premier Li Keqiang says fighting climate change is a "global consensus" and an "international responsibility".
China is the top emitter of man-made carbon dioxide emissions, and the United States is second. A formal withdrawal would take years, experts say, a situation that led the president of the European Commission to speak dismissively of Trump on Wednesday. And the final decision may not be entirely clear-cut: Aides were still deliberating on "caveats in the language", one official said.
Trump said Wednesday he was still listening to "a lot of people both ways". The president has been known to change his thinking on major decisions and tends to seek counsel from both inside and outside advisers, many with differing agendas, until the last minute.