The agency maintains the global backbone of measurements of CO2 and other gases, but these are at risk of being curtailed if ...

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 ...

In its first 100 days, the Trump administration has slashed federal agencies, canceled national reports, and yanked funding ...

This record, from the NOAA-operated Mauna Loa Observatory, near the top of Mauna Loa on the island of Hawaii, shows that carbon dioxide has been increasing steadily from values around 315 parts per ...

Hawaii island’s Mauna Loa (background), towers over the summit crater of Kilauea volcano in Hawaii Volcanoes National Park on April 25, 2019. A magnitude 5.7 earthquake struck the world’s ...