The answer to: "how hot can it possibly get on #earth?" is debated. we do know ppl can't naturally adapt v quickly, & a lot of our food sources wont either
Now a new Nature study says it may top 50ºC
A 2020 SciAdvnc study theorized that humans cannot survive more than a few hours in shade even w unlimited water in wet-bulb temp of 35C (95F) (= a heat index of 70C or 160F)
#WetBulb temp is measured w a thermometer covered in a H2O-soaked cloth
#Climate #ClimateChange
https://www.nature.com/articles/s41612-023-00377-4