The Carlsbad Desalination Plant in Southern California is the largest such plant in the Western Hemisphere, providing 50 million gallons of desalinated seawater per day.​ Reed Kaestner via Getty Images

Desalinating seawater sounds easy, but there are cheaper and more sustainable ways to meet people’s water needs

Nearly 97% of the world’s water is in the oceans, but desalination is no magic bullet for water-stressed coastal cities.

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