Through all the discussion of climate change, alternative fuels have shared a major portion of the spotlight. Whether ethanol, which is powering some aircraft flying at air shows today, or more exotic ideas for all segments of the aviation industry, the search for an environmentally-friendly fuel has sparked a wave of research that could one day lead to lower emissions for aircraft from LSA’s to jumbo jets. The Obama administration recently announced a plan to spend up to $510 million to subsidize advanced biofuel production. The move is part of an effort to spur commercial development as the sector has not grown as quickly as expected. Perhaps with the above concept, things will move faster.