Good point AN. I am really surprised Moores law or some analogy does not apply to desal technology. Seems like if there was a heavy focus, it could be achieved on a friendlier economic scale.
To me there really will be no other alternative.
The problem in my mind is not drought or no drought, it is simply consumption of a finite resource due to population growth. It is not just California as well. The largest aquafir that basically sits under the entire midwest has been consumed to a level that is problematic as well.
Basically we need to lay off of the fresh water aquafirs/river system or at least drastically reduce our dependence on them and let them replenish and the only way to do that is with a substantial desalinization program… It will hurt alot now and hurt more later.