Like many people I recently read that 17 communities in California would run out of water soon. In 60 days or less. I perused 20 or so articles turned up in a Google search about this. Now reading a handful of articles certainly doesn't make me any kind of expert on this complex situation, but I noticed a few things. Some ideas that were touted. And others that were omitted.
Desalination was the most mentioned solution. Who doesn't love big sexy technology. Most articles also mentioned that desal is both costly and energy intensive.