The 4th of July was the hottest day yet—not just of the summer but of recorded human history. Between waves of Canadian wildfire smoke, malaria reappearing in the United States, and deaths from heat, this might be the year that we’re forced to reckon with what life will be like on our newly hotter planet. Guest: Jeff Goodell, contributing writer at Rolling Stone and the author of the upcoming book The Heat Will Kill You First: Life and Death on a Scorched Planet. If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices