A good friend of mine currently has a hog operation right near me. Actually, I rent some of his land. He has a proposal for a biodigester to come in to convert some of his manure into methane. I don't know the process yet, but it's in the works of getting set up. I can't comment on the production or how that's going to work, but initially it sounds like a very good alternative.
On February 25th, 2008. See this statement in context.