Aaron Rigsby has built a career out of documenting tornadoes, hurricanes, and other extreme weather up close. So he’s seen just how much more extreme those storms are becoming.This episode was produced by Avishay Artsy, edited by Amina Al-Sadi, fact-checked by Laura Bullard, engineered by David Herman and Andrea Kristinsdottir, and hosted by David Pierce.Transcript at vox.com/today-explained-podcastSupport Today, Explained by becoming a Vox Member today: http://www.vox.com/membersLearn more about your ad choices. Visit podcastchoices.com/adchoices