More Words, Deeper Hole

I don't think food supply is a problem either. I'm less comfortable with clean water. Even in parts of the US I think people are going to be a little upset about what's going to happen to their water access over the next 20 years, but they'll have to live with dirty cars and something other than grass on their lawns.

In some areas, dramatic water shortages could lead to significant political problems and that could easily affect hundreds of millions of people across the world.

Water and dealing with once a generation storms every other year, or a couple of times a year is going to be more than enough to deal with.