At a time when U.S. gasoline prices were arcing beyond $4 a gallon nationwide, Sapphire Energy said it had proven the feasibility of using algae to make "green crude" that can serve as an identical substitute for crude oil. Sapphire said its product, unlike other biofuels, could enter the pipeline at any petroleum refinery for processing into gasoline and other fuels. Sapphire's process has been used successfully to make the three most important fuels, gasoline, diesel, and jet fuel, and all three products have been independently certified to meet fuel standards set by the American Society for Testing and Materials. Sapphire's concept calls for creating enormous algae "farms" throughout the desert lands of the southwestern United States. Read more here.