Diesel

Eric Loveday of AutoBlogGreen explains why we'll be seeing a lot more diesels in the U.S.: increased federal emission standards will only be met by increasing the number of diesel cars on the market.

Last year, the idea that diesel fuel could be created using algae was all over the news. Unfortunately, the effort can only work on a very small scale that makes no sense, says Jonathan Marshall of PG&E.

An organism discovered in the Patagonian rainforest produces a mixture of chemicals similar to diesel.

The fourth attempt proved a charm as Marin and Sonoma county voters narrowly passed a 1/4 cent sales tax measure to build and run a diesel light rail train through both counties along with an adjacent bike path. The tax measure needed 2/3 to pass.

Austin and a number of other cities are working to reduce the carbon footprint left by their fleets of city vehicles. Austin officials are looking for ways to offset their remaining emissions.