The amount of carbon dioxide in the atmosphere has reached its highest level in human history, according to U.S. government data. The Earth hasn’t had this much CO2 in the atmosphere in more ...

Steam rises from a coal-fired power plant in Niederaussem, Germany, in November. Levels of heat-trapping carbon dioxide in Earth’s atmosphere are the highest they’ve been in 4 million years.

Levels of planet-warming greenhouse gases in the atmosphere reached record highs again last year, UN scientists have warned ahead of key climate talks. Concentrations of carbon dioxide and other ...

NOAA said carbon dioxide levels are now about the same as 4.1 to 4.5 million years ago in the Pliocene era, when temperatures were 7 degrees (3.9 degrees Celsius) hotter and sea levels were 16 to ...

Scientists are also worried about the rapid rise in atmospheric levels of methane, a shorter-lived but more potent heat-trapping gas. Both jumped 5.5% over the past decade.

Carbon dioxide’s average level for 2023 was 419.3 parts per million, up 50% from pre-industrial times. Last year’s methane’s jump of 11.1 parts per billion was lower than record annual rises ...

The lowest level of the atmosphere, called the troposphere, has been growing warmer and gaining thickness at a rate of 53 metres per decade since 2000 By Chen Ly 5 November 2021 ...

The researchers say that Earth’s atmosphere will maintain high levels of oxygen for the next billion years before dramatically returning to low levels reminiscent of those that existed prior to ...

The surge of carbon dioxide levels at the measuring station surpassed even the global average set last year, which was a record high of 419.3 ppm — 50% higher than it was before the Industrial ...