Somebody has been drinking waaay too much Kool Aid - from Reuters:
With heat and humidity, areas will be 'unsuited for outdoor activity'
The old adage, "it's not the heat, it's the humidity," will come into play more often and in more places because of climate change, with life-altering results in southern U.S. cities from Miami to Atlanta to Washington and even northern ones such as New York, Chicago and Seattle.
"As temperatures rise, toward the end of the century, less than an hour of activity outdoors in the shade could cause a moderately fit individual to suffer heat stroke," said climatologist Robert Kopp of Rutgers University, lead scientific author of the report. "That's something that doesn't exist anywhere in the world today."
That result emerges from the heat-and-humidity analysis in "Risky Business," the report on the economic consequences of climate change released on Tuesday. The analysis goes beyond other studies, which have focused on rising temperatures, to incorporate growing medical understanding of the physiological effects of heat and humidity, as well as research on how and where humidity levels will likely rise as the climate changes.
Utter bilge - warmer is better (except for snow sports). More people die from cold than from heat. Plants will grow better too. Pity that the expected warming is not manifesting - we are cooling off. The science is settled.