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The Peer Water Exchange (PWX), has energized and engaged over 40,000 local, grassroots water projects. Realizing that small-scale, community owned and operated projects were successful in driving change, the Blue Planet Run Foundation set up the PWX to manage and build on this capacity.  By providing a platform that is transparent, map-driven, and scalable, the PWX serves as a network to the global water, sanitation and health community where projects are selected, funded, managed, and tracked in a collaborative and efficient way.  In this audio interview, Stanford Center for Social Innovation correspondent Sheela Sethuraman talks with Rajesh Shah, the 2010 Tech Award winner in the Intel Environmental category, as he shares this social entrepreneurship model that leverages technology, new media and peer interaction to solve the water crisis.

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