Global Warming’s Deadly Combination: Heat and Humidity – The New York Times

Above a wet-bulb temperature of 35 Celsius, the body cannot cool down, as sweat on the skin can no longer evaporate. Prolonged exposure to such conditions can be fatal, even for healthy people. Lower but still high wet-bulb temperatures can affect health and productivity in other ways.
Ms. Zhang cautioned that the effect on health from her study was uncertain, since she and her colleagues looked only at how high wet-bulb temperatures would get, not how often the extremes would be reached or how…

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