Fuel-burning devices can create carbon monoxide gas because not all of the fuel is burned.

VOA: special.2011.01.25

The time that we spend in congested conditions significantly adds to the amount of fuel cars and trucks are burning.

VOA: standard.2010.07.26

Many so-called greenhouse gases, such as carbon dioxide, come from burning fossil fuel such as oil or coal.

VOA: standard.2009.12.16

The bioreactors will grow algae that can produce ethanol fuel through a special process that involves using carbon dioxide from nearby coal-burning power plants to promote faster growth of the algae.

VOA: standard.2009.09.02

"Tractors are always running," "So we're always burning fuel." Pitt and many other U.S. farmers are concerned that fuel may be can more expensive under climate change proposals that U.S.congress and negotiators in Copenhagenare considering.

VOA: standard.2009.12.12