It could be as simple as the relative change is one people aren't yet used to. If you grow up in 100 degree weather your whole life you get used to it. Probably

It could be as simple as the relative change is one people aren't yet used to. If you grow up in 100 degree weather your whole life you get used to it. Probably there is some delta of time where we would adapt to any change in temp, but if the temp itself is constantly increasing then maybe our adaptation can't keep up as well