The first global heat wave, across the Northern Hemisphere, land and sea, just happened in July 2023. After the hottest June ever, we burned through four days with the hottest global temperature recorded by humans on this planet. After a fast review of world news on heat and floods, Alex replays interviews with Princeton’s Jane Baldwin (”Back-to-Back Heatwaves”) and Canadian scientist Merritt Turetsky (”Abrupt Permafrost Thaw”).