For 67 years, the observatory on Hawaii's Mauna Loa volcano has been taking these measurements daily  — tracking the invisible gas that is building up in our atmosphere and changing life on Earth.

Last year, the average level of carbon dioxide rose faster over the previous year than at any other point since the ...

Another year, another record,” quipped Ralph Keeling, head of the Scripps CO2 Program, as atmospheric carbon dioxide hit 430 ...

New reports out of the NOAA and Scripps Institution of Oceanography suggest that the carbon dioxide (CO2) levels in Earth’s ...

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

Atmospheric concentrations of carbon dioxide made history last month by climbing to their highest seasonal peak available in historical records, a team of researchers reported. For the first time ...

When Keeling first began testing, CO2 levels were 313 parts per million at Mauna Loa. Today, they stand at 427 ppm. Keeling died in 2005, and his son, Ralph is now the keeper of the "curve." ...

For the first time, the seasonal peak of carbon dioxide concentrations in the atmosphere exceeded 430 parts per million (ppm) ...

Since carbon dioxide is a greenhouse gas, the steady increase has significant implications for global warming.

The lab is connected to the Mauna Loa Observatory, where scientists gather data from atop a volcano to produce the famed Keeling Curve, a chart on the daily status of atmospheric carbon dioxide ...

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