Can humanity learn how to adapt to a hotter world?

ACTIONS TO combat climate change have been primarily focused on mitigation - limiting the amount of greenhouse-gas emissions in the atmosphere. But even with those efforts, the planet’s temperature will continue to rise, leading to more extreme weather events. How will humanity adapt?

Bill Gates, the co-founder of Microsoft, tells us why adaptation in agriculture is critical to feeding the world. We go to China to explore a “sponge city,” designed to absorb water. And we look at the peril and promise of solar geoengineering.