As this year's United Nations Climate Summit wraps up, today's episode examines what people often get wrong about climate change. David Wallace-Wells' 2019 book The Uninhabitable Earth: Life After Warming outlines three major misunderstandings: the speed, scope, and severity of climate change. Here, Wallace-Wells speaks with NPR's Rachel Martin back in 2019 about the worst-case scenario for human life in 2050 and the optimistic outcome we could expect if we take immediate action.

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