It is kind of terrifying to realize that large portions of the third world are soon going to become so hot that it will be impossible to do any sort of physical

It is kind of terrifying to realize that large portions of the third world are soon going to become so hot that it will be impossible to do any sort of physical exertion outside for large parts of the day without putting yourself at risk for heat stroke. That's at lower warming scenarios. At even higher temps it becomes damned near impossible to live without AC (which many in the third world don't have)