What happened in Canada last year (and partly to those of us who live in PNW: it hit 108F at our house last year in the woods next to the Puget Sound) wasn't about average temperatures, it was about more energy in a quasi-stable chaotic system causing more frequent extremes on both/all sides.
The old saying goes: a human dies after three minutes without O2, three days without water, three weeks without food. More to this point, a human dies after being exposed to 95F wet bulb temperatures for three hours.
What's this have to do with living near the poles as the average warms up? There might be some use there, but wild weather is a truly global thing, and the poles are, on average, accumulating even more energy than the equator.