Is the world facing a chaotic century of mass migration spurred by climate change? As the planet’s temperature warms, award-winning environmental journalist Gaia Vince thinks so. In her book, Nomad Century: How Climate Migration Will Reshape Our World, she contemplates a future in which hundreds of millions of people move from one part of the globe to another in a planned and deliberate migration. We discuss her bold solutions for managing what she terms a species emergency in this episode.