A Truck That Runs on Coffee Grounds (and How Wood-Gas Powers Cars With Garbage) : Gas 2.
All you people who consider yourselves eco-holier-than-thou just because you use coffee grounds in your mulch can bow down to this guy. I always knew coffee would save the world, I just figured it would be via the stimulation of the intellect. It would seem coffee can have a more hands on approach. Thanks to James Hoffman over on the Jimseven.com blog for the link.