Trends in Atmospheric Carbon Dioxide

About

Mole fraction of CO2 in dry air at both Mauna Loa (the station with the longest continuous record), and an average of a global network of marine stations. Values are in parts per million (ppm), and available in monthly and annual averages.

More information and rate data are available from the URL.

More data about atmospheric gasses is available from CDIAC

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Data and Resources

Mauna Loa Monthlyplain text
Mauna Loa Monthly

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Mauna Loa Annualplain text
Mauna Loa Annual

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Global Marine Surface Monthlyplain text
Global Marine Surface Monthly

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Global Marine Surface Annualplain text
Global Marine Surface Annual

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Additional Info

Field	Value
Source	http://www.esrl.noaa.gov/gmd/ccgg/trends/
Author	NOAA Earth System Research Laboratory
Maintainer	Dr. Pieter Tans
Last Updated	October 10, 2013, 20:20 (UTC)
Created	January 28, 2010, 21:02 (UTC)