Trump says he believes greenhouse gases contribute to climate change

During the first 2020 presidential debate, President Trump said he believes, to an extent, that greenhouse gases from humans contribute to climate change.

Video Transcript

CHRIS WALLACE: What do you believe about the science of climate change, sir?

DONALD TRUMP: I believe that we have to do everything we can to have immaculate air, immaculate water, and do whatever else we can that's good. You know, we're planting a billion trees-- the billion tree project. And it's very exciting to a lot of people.

CHRIS WALLACE: Do you believe that human pollution, greenhouse gas emissions contributes to the global warming of this planet?

DONALD TRUMP: I think a lot of things do. But I think, to an extent, yes. I think, to an extent, yes. But I also think we have to do better management of our forests. Every year, I get the call, California's burning, California's burning. If that was cleaned, if that were-- if you had forest management, good forest management, you wouldn't be getting those calls.