Commentary: When does a country stop being livable?

At what point is a country actually no longer livable? Is it at 35 degrees? At 40? Or only when the asphalt melts, the forests burn and a walk with the dog becomes a medical emergency? Here we are now. Year after year the same headline. Record heat. Century drought. Millennial fire. And amazingly we still manage to be surprised every time. Almost touching. Of course summers used to be hot too. There were hot days back then as well. That has become the favorite argument of all those who ...