These are all good ideas, but . . . deserts don't support this level of population density without bringing in water.
LA is not in a desert climate. Its not even semi-arid. At just under 15 inches per year of precip, and rain on about 10 percent of days annually, its classified as mediterranean/subtropical.
Regardless of the climate designation, there's a LOT more they can be doing with that 15 inches. The volume of storm runoff, for example, that ends up in the sanitary sewer system is ludicrous. Or at least was years ago when I was studying the problem. I don;t think any major infrastructure upgrades have been made in this regard. Would like to hear that I am wrong about this.
