7 of 20: A young Indian boy holds a pot after collecting water from a broken pipe in a slum on the outskirts of Mumbai, 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/Rafiq Maqbool) (AP Photo/ Rafiq Maqbool)

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