Bill Gates Knows 'How to Avoid a Climate Disaster'

James Corden welcomes New York Times bestselling author of "How to Avoid a Climate Disaster: The Solutions We Have and the Breakthroughs We Need," Bill Gates. And James asks Bill to outline the challenge humanity faces to combat climate change - and Bill calls it the most significant challenge humans will ever undertake. And the two discuss the most impactful changes individuals can make to contribute to the cause.