Interesting article; I knew of this general problem, but this article really brings it home how dire it's about to become. Number #13 really blew me away : "Right now, the United States uses approximately 148 trillion gallons of fresh water a year, and there is no way that is sustainable in the long run." That number is so huge, you can't even think about, it's so beyond comprehension.
In fact, just the other day I read about water authorities in Texas not releasing dam water to rice farmers because of shortages. I didn't even know they grew rice in Texas - who thought THAT was a good idea?
I would expect a water commodity market to open up in the US maybe next year or the year after. Water is the new oil.