Indian women collect water on the eve of World Water Day in Ahmadabad

Indian women collect water at a slum area on the eve of World Water Day in Ahmadabad, 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.

People return after collecting water at a slum area on the eve of World Water Day in Ahmadabad, India, Thursday, March 21, 2013. <AP Photo/NEWSis/Ajit Solanki>