The old lamplighter of the early 1900's has morphed into man's best friend in the new millennium... at least at one dog park in Cambridge, Massachusetts. The Park Sparks is the invention of artist Matthew Mazzotta who's come up with a converter that uses dog waste to create methane gas that powers a lantern in the park.
Dog owners pick up the poo, put it into biodegradeable plastic bags and drop them into the converters.
San Francisco, which thinks of itself as a green city, thought about a similar idea four years ago, but it got bogged down in bureaucracy and safety concerns. For people in Cambridge, the Park Sparks just dandy.
