Penn State researchers found that the maximum wet-bulb temperature humans can endure is lower than previously thought — about 31°C wet-bulb or 87°F at 100% humidity — even for young, healthy subjects. The temperature for older populations, who are more vulnerable to heat, is likely even lower.
A lot of it is a cumulative effect too, you can survive stretches of high temp/humidity but in the future when it becomes a months long season that will be increasingly difficult. Also FWIW for several years at this point subsistence farmers in central America have been dying early from renal failure brought on by years of hard labor in ever hotter conditions.
A lot of it is a cumulative effect too, you can survive stretches of high temp/humidity but in the future when it becomes a months long season that will be increasingly difficult. Also FWIW for several years at this point subsistence farmers in central America have been dying early from renal failure brought on by years of hard labor in ever hotter conditions.