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Environmental scientist Ashok Gadgil is perhaps best known for his inventions which include an ultraviolet water purifier that can provide clean, cheap water for a thousand people per day and an inexpensive, ultra-efficient cooking stove for families in Darfur.
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clean water, poor, an interdependent world (1945-present), earth science instrumentation, earth and space science, human impacts on earth systems, inexpensive inventions and the world's poor: earthsky, instrumentation, measurement, and units, pbs learningmedia, pollution and waste, reducing environmental impacts, the world since 1945, world history, ultraviolet water purifier