Originally Posted by bzh
biodiesel for airplane, no different than Jet fuel...invest in oil seeds stock for the long term....
only certification is needed...
Problem with bios is we need to dedicate even more land to their growth. There are already massive environmental issues with degredation of natural forest to make land for livestock use. If you start needing to feed mechanical horses then it would be even less sustainable than it already is.
Back to the drawing board.