Extreme Heat: the Climate Disaster That's Hardest to See Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A sign stands warning of extreme heat Tuesday, July 11, 2023, in Death Valley National Park, Calif. July is the hottest month at the park with an average high of 116 degrees ( Ty ONeil / AP Photo ) Hosted by Brooke Gladstone Produced by WNYC Studios