Millions of people in Texas have gone three or more days without power, water or both. Texas has had winter weather before, so what went so wrong this time? Reporter Mose Buchele of NPR member station KUT in Austin explains why the state's power grid buckled under demand in the storm. And Marshall Shepherd, director of the Atmospheric Sciences Program at the University of Georgia, explains the link between more extreme winter weather and climate change. Additional reporting in this episode from NPR's Camila Domonoske, who reported on the Texas power grid, Ashley Lopez of KUT, Laura Isensee of Houston Public Media, and Dominic Anthony Walsh of Texas Public Radio. In participating regions, you'll also hear a local news segment that will help you make sense of what's going on in your community.Email us at considerthis@npr.org.