Paget says Belu -- derived from the word blue and the Italian word for beautiful, "bella" -- takes a three-pronged approach to its clean water projects, by not only providing a clean water source for drinking but water for washing hands and education about the importance of hygiene.
In a statement, the Shanghai municipal government said that the water in Huangpu River, which is a major source of drinking water for Shanghai, was safe.
Declared one of three wetlands of global importance by Unesco in 1971, the Everglades is also the source of drinking water for approximately five million people in south Florida.
Purves is very concerned about the glaciers in the Himalayan mountains that are the main source of water for irrigation and drinking in China and India, well over 2 billion people.
FORBES: 500 Million People Will Be Displaced By Glaciers Melting In Greenland And The Himalayas
Aid organizations inside Zimbabwe warn that the contagious disease is spreading fast since raw sewage from burst pipes near the capital, Harare, flowed into wells, rivers and streams, the only source of drinking water for many Zimbabweans.
Of greatest concern initially, the Keystone XL pipeline was designed to run through Nebraska's Sandhills, which lie above the Ogallala Aquifer, the main source of drinking water and irrigation for millions of people.
"Using these plants, we will be able to remove radioactive nuclides from the water and make it clean for irrigation purposes or even as a source of drinking water, " says Slavik Dushenkov of Phytotech.
As regards human consumption, the main source of demand comes from urban communities requiring water for drinking, sanitation and drainage.
Groundwater is the source for nearly half of all drinking water in the world and around 43% of all water effectively consumed in irrigation.
As for the Yamuna river, long the main source of the city's drinking water, it is clinically dead.
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