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.

The levels of greenhouse gases in the atmosphere, the main driver of climate change, have hit a new record high, the UN said Thursday, warning that the time to act was running out.

Over the last decade, humanity's emissions of carbon dioxide (CO₂) have stabilized after a period of huge growth. Average growth is now down to just 0.6% per year, compared to 2% per year in the ...

Carbon dioxide levels in the atmosphere are closely monitored to gauge how much humans are influencing Earth’s climate. The readings are also an indicator of the planet’s overall health.

The amount of carbon dioxide in the Earth's atmosphere is now more than 50% higher than pre-industrial times – and is at levels not seen since millions of years ago when Earth was a hothouse ...

The longest-running climate equipment used to measure carbon dioxide levels in the Earth’s atmosphere lost power Monday evening and is currently not recording data because of Mauna Loa’s ...

Headline Jun 09, 2025 In climate news, the National Oceanic and Atmospheric Administration has revealed global carbon dioxide levels exceeded 430 parts per million last month.