Thanks to my brother-in-law (who refuses to blog) for this link.
The idea is that there is a genetically-mutated bacteria that can convert waste materials like wood chips or particular grasses into crude oil. Oh, and the crude produces a petroleum that is carbon-negative. Weird. Cool?
Of course this is no "big answer," but it is perhaps a step in a better direction than fossil fuel or food-fuel. Check out the article.