Humans are pretty amazing at living pretty much anywhere and so that makes me optimistic that perhaps humanity will be able to survive itself, because the reality is that we are going to have problems with water in this century.
In my bright, utopian future world, they will hand out college educations like cups of water at the end of the L.A. Marathon.
From those who agonize that they may no longer be able to write off their private jet to someone who doesn't feel like making the three mile hike to the well to get water and carry it back, everyone struggles.
The reality is that we are going to have problems with water in this century. And the fact that we are going to have problems with fossil fuel is a given.