At the start of the Industrial Revolution, ice core samples show CO2 levels were around 280 parts per million but as they ...

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

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 ...

For the first time on record, monthly average CO2 levels exceeded 430 parts per million (ppm), according to experts at ...

For the first time on record, monthly average CO2 levels exceeded 430 parts per million (ppm), according to experts at ...

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

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

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.