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Today is World Water Day; more than 780 million people don't have access to clean water

Tony Karumba / AFP - Getty Images

A water-vendor collects water in jerrycans to sell on March 22, 2012 in the Mathare slum, Nairobi, where a water shortage continues to bite on World Water Day.

Charles Platiau / Reuters

Bottles of water spell the word "Steak" during a demonstration for the World Water Day near the Eiffel Tower in Paris March 22, 2012. The word "Steak" is made from bottles representing 1,500 liters of water, the equivalent needed to produce a 100 grams steak.

Anupam Nath / AP

A stray dog walks, as herons sit on the dirt-littered 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.

Channi Anand / AP

An Indian bathes in the River Tawi, as buffaloes walk past in the background in Jammu, India, Thursday, March 22, 2012.

Noah Seelam / AFP - Getty Images

Indian women fill containers with drinking water from a government water supply tanker at their residential colony in Hyderabad on March 22, 2012.

Farooq Khan / EPA

A Kashmiri woman carries water utensil filled from a water tanker on the outskirts of Srinagar, the summer capital of Indian Kashmir, 22 March 2012.

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