Despite rising awareness about global climate change and its devastating impacts, carbon dioxide levels keep treading in the wrong direction. This year’s annual increase of CO2 levels is one of the ...

An observatory high on Hawaii's Mauna Loa volcano that measures carbon dioxide in the atmosphere has reported its highest ever seasonal peak concentration of the greenhouse gas. For the first time, ...

"Carbon dioxide remains in the atmosphere for centuries and in the ocean for even longer. The last time the Earth experienced a comparable concentration of CO2 was 3-5 million years ago, when the ...

Carbon dioxide levels in Earth's atmosphere are at their highest point in human history, a study released in early December reports. In fact, according to the study, it has been about 14 million years ...

Carbon dioxide emissions from human activities and wildfires rose last year, while the land and oceans’ ability to absorb carbon diminished, leading to a record surge in the amount of the ...

Carbon dioxide levels measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked at 424 parts per million (ppm) in May, continuing a steady climb further into territory not seen for millions ...

Far above your head, in the atmosphere between Earth and outer space, an invisible process is occurring. The increasing concentration of carbon dioxide is already manifesting itself in impacts beyond ...

The levels of the crucial heat-trapping gases in the atmosphere reached historic highs last year, growing at near-record fast paces, according to the U.S. National Oceanic and Atmospheric ...

GENEVA (AP) — Heat-trapping carbon dioxide levels in the atmosphere jumped by the highest amount on record last year, soaring to a level not seen in human civilization and “turbo-charging” the Earth’s ...

GENEVA (AP) — Heat-trapping carbon dioxide levels in the atmosphere jumped by the highest amount on record last year, soaring to a level not seen in human civilization and “turbo-charging” the Earth’s ...