NOTICE (March 2018): This website provides access to the CDIAC archive data temporarily. It will be gradually transitioned into data packages in the new ESS-DIVE archive. This site will continue to operate in parallel during and after the transition, and will be retired at a future date. If you have any questions regarding the data or the transition, please contact

image image image image

Atmospheric CO2 Records from Sites in the UBA Air Sampling Network

Umweltbundesamt Monitoring Sites

Map showing location of the Umweltbundesamt monitoring sites