Journalist Mary Ellen Hannibal looks at the important, often overlooked role that citizen science can play in saving the planet.This talk was filmed at TEDxStanford. All TEDx events are organized independently by volunteers in the spirit of TED's mission of ideas worth spreading. To learn more about TEDxSHORTS, the TEDx program, or give feedback on this episode, please visit http://go.ted.com/tedxshorts.

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