You desperately need desalination plants. You guys will never use public transport in Calif. The trains don't go to enough places.
If you lived in California, would you rather have your tax money spent on a Bullet train or Desalination plants?
Considering the thermal prediction NASA posted recently ... I would go with desalination plants.
Though if I lived in CA, I'd honestly be looking to move somewhere further north. Where water will be less of a problem as the Earth warms. I'm talking Northwest WA, Canada, or Alaska.
Desalination plant....of course! Bullet train? Meh...take a flight! I can live without a train, water on the other hand....not so much!
I do live in California, and I would definitely choose the desalination plants.