A Pakistani child drinks water from a hand-pump in an impoverished neighborhood of Karachi, Tuesday, March 22, 2011. Tuesday marks World Water Day, established by the United Nations to focus attention on the importance of freshwater and its sustainable management.
Playboy models Victoria Eisermann, left, and Monica Harris pose during a campaign for People for the Ethical Treatment of Animals (PETA), Tuesday, March 22, 2011, at Trafalgar Square, in London, to highlight World Water Day. According to PETA it takes 4,000 liters of water to produce one steak, the equivalent of taking 50 baths.
Prince Willem-Alexander of the Netherlands drinks water, while he addresses the United Nations World Water Day conference, on Tuesday, March 22, 2011, in Cape Town, South Africa. "Water for Cities: responding to the urban challenge" is the theme of World Water Day 2011.
A boy carries drinking water from a public supply source in Mumbai, India, on World Water Day, Tuesday, March 22, 2011.
Water drips down from a road side water tap in Allahabad, India, Tuesday, March 22, 2011. World Water Day is being marked across the world Tuesday.
Pakistani women leave their homes in search of water in the suburbs of Hyderabad, Pakistan, on World Water Day, Tuesday, March 22, 2011.
Secretary of State Hillary Rodham Clinton shakes hands with World Bank President Robert Zoellick after signing a memorandum of understanding on World Water Day, Tuesday, March 22, 2011, at the World Bank in Washington.
A boy in a shanty area bathes under a public tap in the eastern Indian city of Bhubaneshwar, Tuesday, March 22, 2011. World Water Day is being marked across the world Tuesday.
A Cambodian child drinks water while his school celebrates an annual World Water Day at Chroy Chang Va primary school, in Phnom Penh, Cambodia, Tuesday, March 22, 2011.
An Indian boy washes his face at a road side water tap in Allahabad, India, Tuesday, March 22, 2011. Tuesday marks World Water Day, established by the United Nations to focus attention on the importance of freshwater and its sustainable management.
Pakistani women carry pots while walking back to their homes after collecting fresh water from a nearby water point on the outskirts of Islamabad, Pakistan, on World Water Day, Tuesday, March 22, 2011.
A man washes himself in the water that drains from an overflowing tank on the outskirts of Jammu, India, on World Water Day, Tuesday, March 22, 2011.
A young girl joins her elders as they display empty plastic bottles with water drop-shaped placards during a rally commemorating World Water Day, on Tuesday, March 22, 2011, in Manila, Philippines.
A Pakistani girl leaves home to fetch water for her family in the slums of Karachi, Pakistan, on Tuesday, March 22, 2011. Tuesday marks World Water Day, established by the United Nations to focus attention on the importance of freshwater and its sustainable management.