A new open design challenge is looking for viable alternatives to the dirty diesel pumps that provide irrigation water for off-grid farmers in India ...
http://www.treehugger.com/clean-technology/design-challenge-seeks-port
A new open design challenge is looking for viable alternatives to the dirty diesel pumps that provide irrigation water for off-grid farmers in India ...
http://www.treehugger.com/clean-technology/design-challenge-seeks-port
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