We are facing a species emergency. With every degree of temperature rise, a billion people will be displaced from the zone in which humans have lived for thousands of years. From Bangladesh to Sudan to the western United States, and in cities from Cardiff to New Orleans to Shanghai, the quadruple threat of drought, heat, wildfires and flooding will utterly reshape Earth's human geography in the coming decades. In this rousing call to arms, Royal Society Science Book Prize-winning author Gaia Vince describes how we can plan for and manage this unavoidable climate migration while we restore the planet to a fully habitable state. Drawing on a wealth of eye-opening data and original reporting, Vince shows that migration is not the problem - it's the solution. We will need to move northwards as a species, into the habitable fringes on Europe, Asia and Canadas Canada and the greening Arctic circle. While the climate catastrophe is finally getting the attention it deserves, the inevitability of mass migration has been largely ignored. In Nomad Century, Vince provides, for the first time, an examination of the most pressing question facing humanity.