Carbon Dioxide

An ancient fossil forest in Norway with tropical origins is one of the earliest forests to appear on Earth.

Puddles make water easier to spot and wipe up, but the traditional laws of physics say water should spread indefinitely. So why doesn't it?

Timeworn Antarctica ice suggests a strong link between carbon dioxide levels and glacial cycles for the past million years.

The climate-changing greenhouse effect exists and has been directly measured in the United States.

A massive outpouring of carbon dioxide from the deep ocean helped end the last ice age, scientists report today.

The rise and fall of sea level during the past million years matches up with valleys and ridges on the seafloor, suggesting a link between underwater eruptions and ice ages, two new studies find.

Melting glaciers pose another threat beyond sea level rise. They will dump massive amounts of organic carbon into the world's oceans, altering ecosystems.

NASA scientists unveiled the first data sets from the Orbiting Carbon Observatory-2, or OCO-2.

A striking new video from NASA reveals how the greenhouse gas carbon dioxide spreads across Earth in a single year.

Concentrations of carbon dioxide, a greenhouse gas, will surge to a new high in the atmosphere in 2014.

A new NASA spacecraft is about to embark on a 2-year mission to learn about how carbon dioxide — a heat-trapping gas driving climate change — cycles through the Earth's atmosphere.

Deep-sea fish capture more than a million tons of carbon dioxide from U.K. and Irish surface waters each year, a new study found.

Here's what you need to know about the new EPA power plant emissions proposal.

Dinosaurs that roamed the Earth 250 million years ago had five times more carbon dioxide in the atmosphere than we have today

Results from ice age sediments deal a blow to geoengineering schemes, which seek to slow global warming with iron fertilization.

Pristine Amazon forests pull in more carbon dioxide than they put back into the atmosphere, a new study finds.