Photos: Betting big on biodiesel
Start-up GreenFuels Technologies uses algae to help curb power plant emissions, while others want to pump biodiesel into your car.
Betting big on biodiesel
Start-up GreenFuel uses 3-meter-high tubes to mix algae with sunlight, water and carbon-carrying emissions from power plants to create biodiesel fuel.
Credit: GreenFuel
Betting big on biodiesel
The algae system is being put to the test with the help of MIT and an energy utility in the southwestern United States.
Credit: GreenFuel
Betting big on biodiesel
GreenFuel isn't alone in its work on biodiesel. Others include the Virginia Biodiesel Refinery, which President Bush visited on May 16.
Credit: White House photo by Eric Draper
Betting big on biodiesel
While GreenFuel's biodiesel is intended for use in power plants, other companies are producing plant-based fuel for cars, as at this filling station in Toronto.
Credit: Zuma Press
Betting big on biodiesel
Bloomington, Ind., uses the biodiesel fuel B20 in some vehicles in its public transportation fleet.
Credit: National Biodiesel Board
