NOTICE (January 2018): This website provides access to the CDIAC archive data temporarily. It will be transitioned into data packages in the new ESS-DIVE archive by the end of March 2018. If you have any questions regarding the data or the transition, please contact

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Atmospheric CO2 Records from Sites in the UBA Air Sampling Network

Umweltbundesamt Monitoring Sites

Map showing location of the Umweltbundesamt monitoring sites