Last year, I signed in the law in the United States the largest investment ever anywhere

in the history of the world to combat the climate crisis and help move the global economy

toward a clean energy future.

For the past dozen years or so, every time the General Assembly meets inside the United

Nations, climate activists hit Manhattan to protest outside.

They call it climate week and this has been a big one with tens of thousands of protesters

demonstrating.

I today explained after a summer of extreme weather, we thought we'd acknowledge climate

week with a conversation, not with an activist but with a scientist, one who's been at the

center of climate science since before it was cool and has some ideas on how we can keep

the planet from getting too hot.

Support for this show comes from Delta Airlines.

No one sees the world quite like an airline, but the world seen below is changing.

Fast.

That's why Delta Airlines is committed to net zero carbon emissions by 2050.

It's why Delta is getting rid of 4.9 million pounds of single-use plastics annually and

why they're accelerating their push to source sustainable aviation fuel.

Because Delta knows a thing or two about getting where it needs to be.

And it's time we all got going.

Together, learn more at delta.com slash sustainability.

I am Michael Mann, professor at the University of Pennsylvania and author of the forthcoming

book, Our Fragile Moment.

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