Helioculture- genetically engineered cyanobacteria microorganism can "sweat" fuel from sunlight, carbon dioxide and water

http://www.nytimes.com/2010/09/14/science/earth/14fuel.html?_r=2&scp=1&sq=joule%20unlimited&st=cse


President Obama's call for biofuels that are "made from things like switch grass, wood chips and biomass"  is clearly a shout-out to biodiesel.  But the biodiesel energy has to be careful not to get lumped in with ethanol as a biofuel.  Ethanol production depends heavily on biomass, while biodiesel can be made from less earth intensive technologies like algae.  When you have to grow biomass, you run the risk of displacing land that could be used for food production.


Meanwhile, National Petrochemical & Refiners Association (NPRA) president Charles T. Drevna, slams alternative energy with: “American taxpayers can’t afford to be burdened with billions upon billions of dollars in taxes to subsidize ethanol, electric cars, and other energy ideas that can’t survive in the free market."  
http://www.environmentalleader.com/2011/03/31/obama-calls-for-increased-natural-gas-biofuel-to-reduce-foreign-oil-dependence/.