biofuel

The Texas city of San Antonio today announced that it would become the first major U.S. city to harvest methane gas from human waste and produce a clean burning fuel from it.

The city of 1.3 million people produces about 140,000 tons of a substance euphemistically called "biosolids" per year. The main byproduct of this substance is methane, which can easily be converted into natural gas to burn in power plants. The city made a deal in which Massachusetts based Ameresco Inc. will convert

What if instead of brewing beer you could brew crude oil? A Silicon Valley company is doing just that. Genetically modified microbes feed on renewable sugars and excrete hydrocarbons instead of alcohol. LS9 envisions their products being used directly in

any application where petroleum is required. Advantages to fermented petroleum include the fact that the renewable raw materials grown to feed oil-producing microbes will remove more carbon from the atmosphere than burning the fuels will release. Not only carbon-balanced, the process is economically