Boeing is working to allow their jets to run off a bio fuel made from algae. Of course we all like the idea of fuel that isn’t as bad for the environment, but one of the benefits of this type of fuel is that jatropha (the image above and where the fuel is made from) is a nonfood plant (at least for us humans).
E85 Ethanol fuel has seen the ramifications of using a food plant where the prices rise dramatically as the price of corn rose.
Currently Continental Airlines is working on flying one engine of a 737-800 on a fuel mixture.
This looks promising. Goldman Sachs recently stated that, “Jatropha curcas as one of the best candidates for future biodiesel production.”