Biofuels find a following

Demand for eco-friendly transportation is driving innovation in both fuel and automotive technologies.

San Francisco opens first commercial biodiesel station

Hybrid B20 fuel can be used in most diesel vehicles without engine modification.
Photos: San Francisco fuels up on biodiesel
April 24, 2007

Tyson, ConocoPhillips link up for biodiesel

Companies will team up to turn billions of pounds of animal fat into biodiesel for U.S. drivers.
April 17, 2007

Gold to go in diesel engines

Gold. It's not just for teeth anymore. Nanostellar is going to use it to save automakers money and make diesel cars run cleaner.
April 15, 2007

Hummers and muscle cars go green

Diesel's not just for trucks anymore. Converting cars with notoriously bad mileage can make them eco-friendly without harming performance.
Photos: Muscle cars with a conscience
Video: Souped-up Impala outraces Lamborghini
April 9, 2007

U.S. cities hot for hydrogen

Hydrogen supporters hope what happens in Vegas doesn't just stay in Vegas.
Photos: A hydrogen oasis
Studying the hydrogen energy chain
April 4, 2007

Texas power plant runs on biodiesel

Biofuels Power is harvesting oil from deep-fat fryers to run its 5-megawatt power plant.
March 19, 2007