Carbon Dioxide

Levels of carbon dioxide in Earth's atmosphere this year have already surpassed a troublesome record set in May 2013.

Researchers have shown that a new group of organisms can produce vitamin B12 in the ocean.

Cooling caused by volcanic eruptions accounts for 15 percent of the global warming "pause," the mismatch between actual warming and climate-model predictions.

Rapidly growing mountains have higher rates of soil production and weathering than scientists thought possible, suggesting they may be able to act as carbon sinks.

Jumping sea snails may turn sluggish due to ocean acidification, as lower pH levels disrupt their ability to flee predators, a new study finds.

A type of greenhouse gas that is thought to have a potent impact on global warming was detected in trace amounts in the atmosphere for the first time, according to a new study.

The higher levels of carbon dioxide in the atmosphere could spur mold to grow more allergenic proteins, exacerbating people's response to the fungus, new research finds.

In one of the most shocking tales of survival-at-sea ever told, a man lived for almost three days inside a sunken ship at the bottom of the ocean.

By aerating cow dung, dung beetles may help reduce the amount of methane released into the atmosphere, a new study suggests.

A report assessed the capacity of the U.S. to store carbon dioxide inside rocks deep underground.

NASA mission skims the tundra, sniffing out methane and carbon dioxide.

Damage to squid could reverberate throughout the ecosystem

Desert plants leafing out as atmospheric carbon dioxide levels rise.

Carbonation from fizzy drinks sets of same pain receptors as mustard and horseradish.

River bacteria can break down plant-based carbon, exhaling it as carbon dioxide.

This "high-water mark" is symbolic but paints a dire outlook for a warming world.

Keeling's work revolutionized climate research.