alt Hacker NewsIt's a problem anywhere that temperatures reach that high. Higher latitudes have colder climates. Hence, not a problem. If it becomes a problem, people move toward the poles. No longer a problem.
Earth would have to experience > +35 to +50C for the poles to be uninhabitable due to heat.
> Higher latitudes have colder climates.
Not reliably, not continually, and much less often when you dump enough energy into the atmosphere to disrupt major wind patterns.
British Columbia hitting 121°F/49.6°C at 50°N latitude would sort of suggest your generalization doesn't hold true anymore.