Sea level rise, sweltering temperatures, parching drought, intense wildfires, catastrophic flooding, powerful hurricanes—the effects of climate change are widespread and varied across the globe. These events, which are becoming more severe, don’t just threaten animals and plants that are rapidly going extinct. They threaten humans, too, and are expected to have devastating impacts on some of the most populous parts of the world, including places humans have called home for millennia. Climate change could trigger the largest human migration to have ever occurred. In fact, it’s already begun.
Some experts and policymakers are starting to plan for this new reality of mass migration. But will new destinations be ready when the migrants show up?