‘Extreme threat’: Large swathe of southern US at dangerous ‘wet bulb temperature’
by Jeremy Tanner - 06/29/23
"Readings of a key indicator of heat exposure danger have reached the highest possible threat level in multiple southern states, as well as in a few states in the #Midwest.
"When it comes to the 'wet bulb temperature,' nearly all of #Louisiana, #Mississippi, and #Arkansas are under 'extreme threat.' The wet bulb temperature measures multiple stressors on the human body in direct sunlight, not in the shade, as the #HeatIndex does.
"When it’s hot, humans sweat to cool off, but if the humidity is also high enough there’s a point at which sweat loses its cooling effect.
"The upper limit that humans could withstand was thought to be 95 F at 100% humidity, according to a 2010 study. New research out of Penn State University’s Noll Laboratory found that the critical limit is in fact even lower – 88 F at 100% humidity."
#ExtremeWeather #WetBulb #ExtremeHeat #Humidity #Climate #ClimateCrisis #ClimateCatastrophe #USA #SouthernUSA
Read more:
https://thehill.com/homenews/nexstar_media_wire/4074341-extreme-threat-large-swathe-of-southern-us-at-dangerous-wet-bulb-temperature/