David Wallace-Wells is the author of The Uninhabitable Earth. The book describes the fires, floods, and famine we’ll experience as our planet heats up. It’s not a pretty picture.

And we talk with Anya Sastry. The 16-year-old from Barrington is national outreach director for the U.S. Youth Climate Strike, an organization of young people pushing for the New Green Deal and raising awareness about climate change.