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This is Scientific Americans 60 Second Science. I'm Steve Mursky.

For this installment of our pre-election podcast series,

I spoke to Andrea Thompson.

She's a Scientific American Associate Editor covering issues in

sustainability and the environment with an emphasis on climate.

I think there's probably a pretty clear difference between the contestants in this election regarding climate science.

Yeah, there definitely is.

President Trump has caught into a question a lot of, you know, well-established climate science.

He has integrated the federal government's own national climate assessment as well as the work put out every

few years by the Intergovernmental Panel on Climate Change, which are sort of the two documents

that really bring together and summarize and synthesize all of the climate research that's being done.

Whereas former Vice President Biden has made it clear that he understands and respects climate science and that he thinks that climate change is a really

existential threat and specifics.

So one of the key things that President Trump did was last year he put in a request to remove the United States from the Paris Climate Agreement, which is the global agreement for countries

to gradually reduce their greenhouse gas emissions.

If Biden wins, he has said, he will immediately bring us back into that agreement.

The National Climate Assessment that I alluded to earlier that comes out every four years.

It's mandated by Congress.

There's multiple federal agencies that put that together and the last one that

...