A startup based in Cambridge, MA–Joule Biotechnologies–today revealed details of a process that it says can make 20,000 gallons of biofuel per acre per year. If this yield proves realistic, it could make it practical to replace all fossil fuels used for transportation with biofuels. The company also claims that the fuel can be sold for prices competitive with fossil fuels.
This is from MIT Technology Review. They say the process has been demonstrated in laboratories and uses special microorganisms to convert the energy of the sun into ethanol or other such fuels.
Could be a game changer.