The Park Spark Project Digests Dogs' Feces to Power a Park Lamp

 - Sep 11, 2010
References: parksparkproject & fastcompany
The Park Spark project uses dog feces to power a park. "The first public methane digestor for dogs," according to Fast Company, it currently just generates enough energy to light a nearby lamp. Over time, however, they hope to extend it to other objects in the park.

Based in a Cambridge, Massachusetts dog park, the Park Spark project "demonstrate(s) to community members that waste is a precious resource."