General Motors Co.  today announced a five-year partnership with the U.S. Department of Energy (DOE) to help develop the potential of the jatropha plant...

Car makers are not doing enough to meet proposed EU targets for cutting carbon dioxide emissions, according to a report Tuesday, with some German...

Oil prices rose Monday after Iran's oil minister said OPEC has...

The nation's passenger cars and light trucks may have to average 75 miles per gallon by the 2030s, a top federal environmental official said...

With gasoline prices hitting records above $3 a gallon, analysts are watching closely for any hints that motorists are altering their behavior. This vigilance...

Germany's automakers association played down concerns Thursday that large numbers of cars would be incompatible with a new biofuel mix that the government wants...

Iran jumped gasoline prices 25 percent Tuesday in a new blow...

Gasoline prices extended their advance at the pump Friday, while gas...

New York's signature yellow taxis will all run on hybrid energy...

Retail gasoline prices dropped a cent overnight Tuesday, and oil and...