Past California drought lasted 200+ years

In theory, cities cannot run out of water. All we can do is run out of cheap water, or not have as much water as we need when we really want it.
— Professor Barton Thompson

San Jose Mercury News has a startling article about scientists reporting that past megadroughts in California having lasted more than 200 years. 

If this is the beginning of a megadrought for the Golden State, then Californians need to come up with a contingency plan fast.