Actor Harrison Ford on Tuesday swiped at President TrumpDonald John TrumpO'Rourke: Trump driving global, U.S. economy into recession Manchin: Trump has 'golden opportunity' on gun reforms Objections to Trump's new immigration rule wildly exaggerated MORE, saying that leaders who "deny or denigrate science" are on the wrong side of history. 

"Around the world, elements of leadership — including in my own country — to preserve their state and the status quo, deny or denigrate science," Ford said in a speech on the final day of the World Government Summit in Dubai, according to The Associated Press. "They are on the wrong side of history."

Ford urged citizens to protect the world's oceans, the AP reported. The actor, best known for his roles in the "Star Wars" and "Indiana Jones" film franchises, called on governments to rely on "sound science" in their response to climate change. 

"We are faced [with] what I believe is the greatest moral crisis of our time," Ford said. "That those least responsible for nature's destruction will suffer the greatest consequences."

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Ford told CNN before his speech in Dubai that he believes governments around the world aren't doing enough to institute policies to combat climate change. 

"I don't know what the answer to it is, but the start of the answer is to elect people who believe in science," he said. "This current government is bent on dismantling all of the gains we've made in the protection of the environment, in human health."
 
Trump has repeatedly cast doubt on the existence of global warming, and last year disputed the scientific consensus that human activity contributes to climate change. 
 
Trump mocked the idea of global warming multiple times in January as separate winter storms hit parts of the U.S. 
 
"What the hell is going on with Global Waming?" he asked on Twitter in late January as a storm hit the Midwest. "Please come back fast, we need you!"