Cow power: Indiana farm uses manure to fuel its dairy trucks
April 5, 2013, 3:42 p.m. by John Platt
Fair Oaks Farms now powers 42 tractor-trailers with compressed natural gas from methane, the largest project of its kind to date.
Fixing diesel's bad reputation with 50-mpg clean cars
February 8, 2013, 1:20 p.m. by Jim Motavalli
In the '70s and '80s, diesels were noisy, smelly, polluting and slow. Well, guess what? They're not anymore. Clean diesel is a real alternative, with 650-mile range being one big benefit.
Solved: The mystery of the biofuel-filled train that kept crossing the border
December 28, 2012, 10:32 a.m. by John Platt
A Canadian company and a partner are the latest to defraud an EPA system designed to bring more renewable fuels into the market.
Student entrepreneurs help heat Rhode Island homes
December 21, 2012, 3:08 p.m. by Melissa Hincha-Ownby
Cassandra Lin and her classmates provided enough biodiesel to heat 210 homes in Westerly, Rhode Island.
Advantages of biodiesel fuel blends for home heating
November 28, 2012, 12:39 p.m. by Networx Systems
Virtually sulfur-free biodiesel fuel is available in blends for home oil burners.
Daryl Hannah on her biodiesel
March 26, 2012, 10:41 a.m.
Video: Actress and environmental activist Daryl Hannah tells WSJ's Joe White about the biodiesel-powered cars in her garage at the 2012 ECO:nomics conference.
Forget electric vehicles: Here come the 50-mpg gas and diesel cars
November 15, 2011, 11:26 a.m. by Jim Motavalli
Electric cars get all the love and the federal money, say diesel and turbo advocates — and they want a level playing field.
Envelope, please: The Green Car of the Year awards
October 26, 2011, 2:30 p.m. by Jim Motavalli
Five cars vie for the title, but only one will win. Luckily, they're all worthy. Just don't make me watch the awards ceremony, because I hate that stuff.
19 weird and wonderful turtle and tortoise species
The government will pay you $1,000 to adopt a wild horse
Photographer captures stunning image of eagle in symmetrical reflection
'Super mom' spotted on a Minnesota lake — with 56 ducklings in tow
10 of the top U.S. cities for nature lovers
A fire chief comforts a dog who refuses to leave his trapped owner's side