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

*Mauna Loa Observatory data from the most recent month is preliminary

See the Mauna Loa record in other graphic forms at the Scripps CO2 site

The Keeling Curve is the record of atmospheric CO2 from the Mauna Loa Observatory, starting in 1958.

Scripps CO2 measurements at Mauna Loa are currently supported by Schmidt Sciences with supplemental support from Earth Networks, a technology company collaborating with Scripps to expand the global GHG monitoring network. Support for website development was provided in part by the National Science Foundation (NSF).  The Mauna Loa Observatory is run by the National Oceanographic and Atmospheric Administration.

Any opinions, findings, and  conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of NSF.

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