Drawing on a career of environmental reporting and over two years of travel to the front lines of climate migration across the globe, an award-winning science journalist, in this urgent call to action, discusses the underreported, seismic consequences of climate change and how it will reshape humanity.

Introduction -- The storm -- The four horsemen of the Anthropocene -- Leaving home -- Bordering on insanity -- Wealth of migrants -- New cosmopolitans -- Haven Earth -- Migrant home -- Anthropocene habitats -- Food -- Power, water, stuff -- Restoration -- Conclusion -- Manifesto.