Desalination for Californian Drought?

Praying for Rain may not be enough for Californians.  Despite several years of Drought, next year could be worse if nothing is done by December 2015.  Options range from Water Rationing to Desalination (ocean water conversion to tap water by removing salt and ocean junk).  With rising Sea levels following melting of Polar Ice due to Climate Change, this may be necessary and help lower the Sea Levels from threatening Pacific Islands (whom also use this practice).  MC 2015.