The Keeling Curve

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.91 parts per million (ppm) CO2 in air 07-Dec-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

427.05 parts per million (ppm) CO2 in air 06-Dec-2025
keelingcurve.ucsd.edu

Global Scientists Anticipate Less Reliance on the US in Future Carbon Monitoring - Inside Climate News With Trump’s budget knife still poised over NOAA’s climate research operations, international researchers see a reduced role for the nation that pioneered CO2 measurement.

The U.S. has had a central role in ensuring the accuracy of the world’s long-term measurements of carbon in the atmosphere. Amid President Trump’s threats to climate research, global scientists are looking for alternatives.

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.75 parts per million (ppm) CO2 in air 04-Dec-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.77 parts per million (ppm) CO2 in air 03-Dec-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

Baseline reading not available, data too variable 02-Dec-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

Baseline reading not available, data too variable 01-Dec-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

Baseline reading not available, data too variable 30-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.48 parts per million (ppm) CO2 in air 28-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

Baseline reading not available, data too variable 27-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.01 parts per million (ppm) CO2 in air 25-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.01 parts per million (ppm) CO2 in air 24-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.64 parts per million (ppm) CO2 in air 23-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

Baseline reading not available, data too variable 22-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

Baseline reading not available, data too variable 21-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

425.82 parts per million (ppm) CO2 in air 20-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

425.90 parts per million (ppm) CO2 in air 19-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.15 parts per million (ppm) CO2 in air 18-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.48 parts per million (ppm) CO2 in air 17-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.32 parts per million (ppm) CO2 in air 16-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.46 parts per million (ppm) CO2 in air 15-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

427.55 parts per million (ppm) CO2 in air 14-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.57 parts per million (ppm) CO2 in air 13-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.31 parts per million (ppm) CO2 in air 12-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

426.35 parts per million (ppm) CO2 in air 11-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

425.61 parts per million (ppm) CO2 in air 10-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

Baseline reading not available, data too variable 09-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

424.54 parts per million (ppm) CO2 in air 08-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

Baseline reading not available, data too variable 07-Nov-2025
keelingcurve.ucsd.edu

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

424.47 parts per million (ppm) CO2 in air 06-Nov-2025
keelingcurve.ucsd.edu