Last week, I read The West without Water (WWW), about the paleoclimatology of the American west. I read it because I wanted to learn more about the PDO, Pacific Decadal Oscillation that some say is responsible for our drought. It's not the best book for learning about PDO.
|Correlation and anti-correlation of CA and PNW rainfall from The West without Water.|
WWW deserves a longer and more thoughtful post later, perhaps in tandem with a discussion about Atmospheric Rivers.
I just want to point out that we don't need to literally import/export water between north and south. It would be much more efficient to ship embedded water in the form of goods.