Gravity Assist: Let’s Talk About Climate Change, with Gavin Schmidt

What’s the difference between climate and weather? How does NASA monitor changing sea levels, melting glaciers, and other effects of climate change? Gavin Schmidt, NASA’s acting senior climate advisor, explains how rising temperatures lead to many complex changes both in the oceans and on land. When it comes to climate change: “It's real. It's us. But we still have choices about how bad we let it get,” he says.