Countdown to extinction: Nuclear war and the end of humanity

On this episode of Going Underground, we speak to Brian Toon, professor of atmospheric and oceanic sciences at the University of Colorado Boulder. He discusses the civilisation-ending impact nuclear war would have, with 50-150 million people being killed in a hypothetical war between India and Pakistan. He also discusses the harsh impacts of nuclear winter and why it is a credible extinction-level threat, the close-call accidents and mistakes that have almost caused nuclear wars to begin, the threat of a large-exchange nuclear war involving the US, the case for disarmament, and much more.

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