In Cambridge, Massachusetts, a guy named Matthew Mazzotta wondered, "Why not use the methane gas from dog poop to power a lamp in a city park?" Since dogs are ALREADY pooping in the park, it seemed like the perfect idea!
Mazzotta called this idea the Park Spark project. For it, he installed a Methane Digester above-ground (it’s underground in the diagram below). The Methane Digester has a tube and a hand-crank, so that people can feed poop into it and stir the mixture inside.
The methane captured by the Park Spark is then piped to a gas lamp…and ta-dah! Let there be light! Yes, it’s a poopy light, but so what? And what I like about this is that the dog poop doesn’t just end up in a landfill…or on my shoe! And now, here is a BBC news story about Park Spark. (It’s a radio broadcast with photos.)
The Park Spark website is here.
Top photo from the good people at Sprinkle Brigade.