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A billion people across Asia, Africa, and Latin America are estimated to rely on untreated surface water sources for their daily water needs. Of these, some two million are thought to die from diseases caught from contaminated water every year, with the majority of these deaths occurring among children under five years of age.
Michael Lea, a Current Protocols author and a researcher at Clearinghouse, a Canadian organisation dedicated to investigating and implementing low-cost water purification technologies, believes the Moringa oleifera tree could go a long way to providing a solution.
"Moringa oleifera is a vegetable tree which is grown in Africa, Central and South America, the Indian subcontinent, and South East Asia. It could be considered to be one of the world's most useful trees," said Lea.
"Not only is it drought resistant, it also yields cooking and lighting oil, soil fertilizer, as well as highly nutritious food in the form of its pods, leaves, seeds and flowers. Perhaps most importantly, its seeds can be used to purify drinking water at virtually no cost."…
Sonjna Moringa oleifera tree in Kolkata, West Bengal, India, shot by J.M.Garg, Wikimedia Commons, under the Creative Commons Attribution-Share Alike 3.0 Unported license
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