Levels of carbon dioxide — the most abundant planet-warming gas in the air — jumped up by a record amount in 2024.

Carbon dioxide in the atmosphere has spiked to levels not seen in millions of years on Earth due mainly to the burning of ...

Carbon dioxide in the atmosphere hit “next-level” highs, scientists say. Earth’s ecosystems breaking down under extreme ...

In 1958, scientist Charles David Keeling began monitoring carbon dioxide levels at the Mauna Loa Observatory in Hawaii, providing the first clear evidence that humans were increasing atmospheric CO2 ...

NOAA research shows it would take the average tree more than 1500 years to sequester the amount of carbon dioxide a whale can ...

While the Earth Day movement has helped raise awareness about human-amplified climate change and has led to some regulatory ...

Rising temperatures and higher carbon dioxide levels in the atmosphere have been linked to increased concentrations of ...

As atmospheric carbon dioxide levels rise because of human activities—dominated by fossil fuel consumption—the findings raise questions about the ocean’s ability to absorb the anthropogenic carbon ...

The lack of context minimized the government’s own findings that atmospheric levels of carbon dioxide — the most abundant planet-warming gas in the air — jumped up by a record amount in 2024.