Great article about Peter Bethune a Kiwi environemtalist/sailor who has built a boat that runs on bio-diesel. That’s recycled oil from deep-fat fryers.
Sadly his project is very short of the $4 million needed to leave California so he doesn’t seem to be going anywhere.
I am not sure that this will catch-on as a major form of transportation as the boat has a distinct aroma
“Then there are the curious smells that follow biodiesel vehicles in
general, often reflecting the fuel’s origins. “You may smell doughnuts,
you may smell French fries,” said Josh Tickell, of the advocacy group
Biodiesel America. “People say they smell fried catfish, but that might
be a stretch.”
Link: A Boat Racing on Biodiesel, but Running Low on Money – New York Times.