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
