They found that atmospheric levels of the gas hit a seasonal peak of just under 427 parts per million in May — an increase of 2.9 ppm since May 2023 and the fifth-largest annual growth in 50 ...

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.

Atmospheric levels of carbon dioxide are similar to where they were during the mid-Pliocene epoch, about 4.3 million years ago, NOAA said. During that time period, ...

New data shows that CO2 levels have broken through 430 parts per million, an indication that human-caused global warming will ...

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 ...

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.

Carbon dioxide levels in the atmosphere increased to a record high in 2023, even as countries promise to lower their emissions, the World Meteorological Organization reported Monday. The WMO, an ...

So, Tong, Ruoyu Sun and colleagues wanted to reconstruct information on past atmospheric mercury levels to understand how they’ve changed. This plant (left), found along the slopes of Mount Everest, ...