I think many people still view climate change as a future threat. It was really clear in our reporting that this is something happening right now. Of course that's very apparent in the city of Saint-Louis, where we did a lot of our reporting in Senegal. But even in the strawberry fields of Huelva, Spain, farmers told us that the harvest used to begin in February and it now begins in December. Sneak preview: I just interviewed the author Jake Bittle about his forthcoming book, "The Great Displacement," for All Things Considered. He documents the lives of people displaced by climate change in the United States. And he found them all over the country...from droughts in Arizona to floods in Houston. This isn't a future threat; it's happening right now.