Algae to fuel our cars?

Several teams of U.S. researchers are working on the idea of building algal farms to produce hydrogen for the fuel cells that will power our cars in a decade or two. According to ScienCentral News, we generate today ten million tons of hydrogen. But by re-engineering algae at the molecular level, it would be feasible to generate ten times that amount, and without using any fossil fuels.
ZDNet