Older equipment powered by fossil fuels should be inspected every year to make sure it continues to be safe.

VOA: special.2010.02.02

The two scientists have concluded from fossil records that giant meat-eating dinosaurs like the Tyrannosaurus rex mainly ate young dinosaurs.

VOA: special.2009.09.01

Experts agree that the leading cause of carbon monoxide poisoning is damaged equipment that burns these fossil fuels.

VOA: special.2010.02.02

Paul Sereno said the fossil will be returned to China and put in a museum when the scientists have finished their studies.

VOA: special.2009.10.13

Natural gas is considered the cleanest of the fossil fuels, the fuels created by plant and animal remains over millions of years.

VOA: special.2009.10.23

He found fossil remains of the same kind of an early plant in areas of Africa, South America,India, Australia and even Antarctica.

VOA: special.2010.01.12

The museum also has many fossil remains of the huge cats that once lived in the area.

VOA: special.2010.04.07

Visitors can see the ancient fossil bones of creatures like the imperial mammoth and the American mastodon.

VOA: special.2010.04.07

There,Darwin noted that levels of rock extending high above the sea contained the fossil remains of shells.

VOA: special.2009.02.25

Fossil records of the stomach contents of the larger dinosaurs suggest they swallowed these young dinosaurs whole.

VOA: special.2009.09.01

He says knowing how to do this may be especially valuable if fossil fuel should become unavailable.

VOA: special.2009.04.14

It is exciting to stand only a few meters away and watch scientists clean the asphalt off a fossil that is thousands of years old.

VOA: special.2010.04.07

The gas is mainly methane. It produces half the carbon dioxide of other fossil fuels.

VOA: special.2009.10.23

But he is hard at work. He and his team currently are trying to make algae that can change carbon dioxide back into fossil fuel.

VOA: special.2010.07.20

Scientists have recovered more than one million fossil bones from the La Brea Tar Pits.

VOA: special.2010.04.07

The area is considered one of the richest areas of fossil bones in the world.

VOA: special.2010.04.07

Students grow organic food and use as little fossil fuels and chemicals as possible.

VOA: special.2009.04.14

He also collected the fossil remains of animals that had disappeared from the Earth.

VOA: special.2009.02.25

The museum also has thousands of fossil remains of an ancient kind of wolf.

VOA: special.2010.04.07

Doctor Kriegstein named the fossil to honor his parents and donated it to science.

VOA: special.2009.10.13

But Mister Rauhut says fossil records show that this is not the case.

VOA: special.2009.09.01

Also in the Mediterranean, a team of census-takers discovered a living fossil.

VOA: special.2010.11.09

The fossil was removed from China under mysterious conditions.

VOA: special.2009.10.13

But it also leads to a fossil fuel.

VOA: special.2009.10.23

"We're looking to get off fossil fuel generation, whatever it might be, and we need to bring these newer technologies in.

VOA: standard.2010.03.23

Senator Lamar Alexander said the country should build 100 nuclear power plants, to help break its reliance on fossil fuels.

VOA: standard.2009.04.25

The disaster comes as Obama administration attempts to chart a course toward U.S.energy independence and less reliance on fossil fuels.

VOA: standard.2010.05.02

Does measures seem to low emissions of greenhouse gases by raising the cost of gasoline, coal,natural gas and other fossil fuels.

VOA: standard.2009.12.12