A few years ago, a company started producing Bio diesel from the left over sugar cane stalks after processing. They ran all thier trucks and equiiment on this fuel and burned very efficiently. They decided they wanted to expand, but didn't have the means to distribute the product. A big oil company showed interest and negotiated to buy the plant, formulations and take over the facility. The upstart company relented thinking that their idea would be a hit. As soon as the big oil company took over the plant, they shut it own. They crushed their competition, to never be heard of again.
There's another company that buys plastic dshboards and seats from cars in junk yards, and produce high quality bio diesel from it. The problem will always be the same, the delivery of the product. Only big oil companies have the capabilites and infrastructure needed to deliver the production of these fuel. With their cooperation, USA could be weaned off fossil fuels. I don't think I will live to see it happen.