Associated Press
A woman bathes using water collected from various areas on World Water Day at a slum in Bhubaneswar, India, Thursday, March 22, 2012. The U.N. estimates that more than one in six people worldwide do not have access to 20-50 liters (5-13 gallons) of safe freshwater a day to ensure their basic needs for drinking, cooking and cleaning. (AP Photo/Biswaranjan Rout)

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