Species must adapt to their environment or they become former species, extinct. They either adapt or die even if the changes are abrupt they must cope, reproduce, and survive or else. Guess what? Humans are no different in this regard. Whereas, humans can modify their environment - heating, air-conditioning, etc. they still have to deal with the outside conditions, unless they wish to go live in caves in the future, or underground. Of course, then they must adapt to those new conditions, you see the point?
One of the biggest issues is thermal or heat stress. In fact, in the Journal of Ergonomics (volume 16, issue 5, 1973) there was an interesting paper titled; "Thermal Stress and Thermal Comfort" by RK MacPherson with an abstract which stated;
One of the biggest issues is thermal or heat stress. In fact, in the Journal of Ergonomics (volume 16, issue 5, 1973) there was an interesting paper titled; "Thermal Stress and Thermal Comfort" by RK MacPherson with an abstract which stated;