by TheFair » 27 Jan 2011, 09:02
Check out the biogas that is made from digested cow manure! Great stuff. My bio class took a tour of one over the summer. There are two in MN, but they are working on them in other states as well. Guessing that a google search on biogas, alternative fuels, or manure digestion plants will give you several hits. If not, zip me a line and I'll see what I can find.