> humans cope pretty well over a wide variety of temperatures.
That's not the problem, though. The problem is almost nothing else can. Livestock, staple crops, pollinating insects, etc.
That's not the problem, though. The problem is almost nothing else can. Livestock, staple crops, pollinating insects, etc.
There is a pretty big variation in average temperatures by country [0]. Somehow People everywhere from Thailand to Greenland manage to find food. All else failing it is a possibility to trade for calories. Let alone technology improvements that might save the day by accident.
I mean, it might make places uninhabitable over the course of a few generations, but things that change so slowly are't actually much of a threat on an individual level. Worst of the worst cases people can move or not have children - the statistics suggest that is an acceptable option to a lot of people.
[0] https://en.wikipedia.org/wiki/List_of_countries_by_average_y...
This won't end humanity, no. But it is likely to cause absolutely catastrophic levels of upheaval and probably billions (with a b) of deaths—from famine, disease, exposure, and war.