The Mauna Loa laboratory in Hawaii has measured atmospheric carbon dioxide, which — along with other planet-warming pollution ...

In 1958, when the Keeling Curve began, the concentration of CO2 in the Earth’s atmosphere was 313 parts per million. In 2024, that had risen to 424.61 ppm, and this year, monthly average CO2 ...

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

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 recordings began, Scripps reported in January. The average readings for the 12 ...

One of my favorite annual traditions is to ride my electric mountain bike up Aspen Mountain on the summer solstice. There at ...

Carbon dioxide levels are typically represented on a graph known as the Keeling Curve, named for Keeling’s father, Charles David Keeling, who began taking daily measurements of atmospheric ...