We live in a moment with almost daily reminders of how fragile life on Earth is whether it be from climate change, nuclear weapons or AI. In this episode, we bring you a story from the not-so-distant past when we learned what drove dinosaurs to extinction. And how it might have helped us avoid the same end. This episode was originally published in March 2025. Guests: David Sepkoski, Thomas M. Siebel Chair in History of Science at the University of Illinois and author of Catastrophic Thinking: Extinction and the Value of Diversity. Owen Brian Toon, professor of atmospheric and oceanic sciences at the University of Colorado Boulder. Alec Nevala-Lee, novelist, critic, and biographer and author of the forthcoming book Collisions: A Physicist's Journey from Hiroshima to the Death of the Dinosaurs. Ann Druyan, co-writer and co-creator of the television series Cosmos: A Personal Voyage. Andrew Revkin, science and environmental journalist. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at <a href="http://plus.npr.org/"target="_blank" >plus.npr.org</a>. See <a href="https://pcm.adswizz.com">pcm.adswizz.com</a> for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. <a href="https://www.npr.org/about-npr/179878450/privacy-policy">NPR Privacy Policy</a>

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