Comment by blahedo

Quite possibly, and for a very important and underrated reason: the fights over water are already starting and are going to get bigger and nastier over the next few decades, but the cities on the shores of the largest freshwater supply in the world will be sitting pretty. Detroit may have to spend its forty years in the wilderness (rather more literally than that phrase is usually used), but there's really no question about it coming back eventually. Not with all that fresh water close at hand.