An Indian homeless woman bathes her child on the banks of the River Brahmaputra in Gauhati, India, Thursday, March 22, 2012. According to U.N. estimates, 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/Anupam Nath)