Climate change is perhaps the single most important challenge we'll deal with in the coming centuries. Kerry Emanuel breaks down what's happening now and how science can help us cope.
Kerry Emanuel is one of the world's foremost experts on hurricanes. As a respected scientist at the Massachusetts Institute of Technology, he's published a spate of important, widely cited papers linking climate change to increasingly dangerous weather. But for doing his job, Emanuel's also received emails threatening his family. He continues to do it anyway.