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...

European automakers demanded more time on Wednesday to meet mooted CO2...

Exxon and Rosneft, Russia's state oil company, reached an agreement today to explore for oil in a Russian sector of the Artic Ocean. The...

Florida Governor Charlie Crist announced Friday "bold" new air-pollution targets for...

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

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...

Last week's battle in a House committee over fuel economy increases...

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

Gas and electric company Dominion Resources Inc. said Monday it will...