There are 16,000 desalination plants on the planet , and their numbers are rising . It 's dependent on water to sustain that economy . A huge desalination plant is under construction in Carlsbad , California . When completed it will be the largest such facility in the Western Hemisphere . It's expected to produce enough water for about 10 million people a year ( or more than half of all Californians ). Ocean water is `` a seemingly inexhaustible supply ''
There are 16,000 desalination plants on the planet , and their numbers are rising . A huge desalination plant is under construction in Carlsbad , California . When completed it will be the largest such facility in the Western Hemisphere . It's expected to produce enough water for about 10 million people a year ( or more than half of all Californians ). Ocean water is `` a seemingly inexhaustible supply ''