Millions of West Africans don't have access to safe drinking water, which can cause everything from dysentery to permanent parasitic blindness.
Former Los Angeles District Attorney-turned-photographer Gil Garcetti traveled to West Africa, and his photos have been turned into a new book called Water is Key: A Better Future for Africa.
Peter Gleick, the book's editor, is also president and co-founder of the global water research group, Pacific Institute.
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