A young Indian boy bathes under a public tap at a slum area, on the eve of World Water Day in Allahabad, India Thursday, March 21, 2013. 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/ Rajesh Kumar Singh), APTOPIX