The test flights are part of an aviation industry plan to derive 1 percent of jet fuel from petroleum alternatives by 2015, or roughly 600 million gallons a year. (scientificamerican.com)
The same fats and oils can also be made into a substitute for jet fuel using a related process. (ucsusa.org)
Right now, that means fossil fuels, but what if we could create jet fuel from sources that are at least carbon neutral? (treehugger.com)