Water is essential to life. The United Nations estimates that nearly 1 billion people do not have access to safe drinking water. And the demand for fresh water doubles every 20 years, according to Rajiv Shah, administrator of the U.S. Agency for International Development (USAID).
March 22 was designated as World Water Day by the United Nations in 1993. The day focuses attention on the importance of clean water and promotes sustainable management of freshwater resources.