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See what's new in WDCGG. Also refer to "Data Update Information."
8 Dec. 2022
This website was unavailable from 30 Nov. to 7 Dec. 2022 for maintenance work.
We sincerely apologize for any inconvenience or concerns caused by this.
Thank you for your understanding.
26 Oct. 2022
WMO Greenhouse Gas Bulletin No. 18 is released.
26 Aug. 2022
WMO WDCGG Data Summary No. 46 is released.
29 Mar. 2022
This website has started providing some additional contents and options.

improved data search
   search for specified data periods
   map for positions of mobile data
latitudinal distribution animation
satellite data animation
25 Oct. 2021
WMO Greenhouse Gas Bulletin No. 17 is released.
14 Sep. 2021
WMO WDCGG Data Summary No. 45 is released.
25 Mar. 2021
This website has started providing NetCDF format data files and issuance of DOI. Please see the following page for the details: WDCGG DOI Policy
23 Nov. 2020
WMO Greenhouse Gas Bulletin No. 16 is released.
19 Nov. 2020
WMO WDCGG Data Summary No. 44 is released.
17 June 2020
This website has started providing meteorological data. Please see the following page for the details: FAQ
10 Mar. 2020
WMO WDCGG Data Summary No. 43 is released.
25 Nov. 2019
WMO Greenhouse Gas Bulletin No. 15 is released.
3 Sep. 2019
Some header composition items have been added.
Check the Data Format Table for details.
19 Mar. 2019
This website has started to provide satellite data.
19 Feb. 2019
WMO WDCGG Data Summary No. 42 is corrected.
22 Nov. 2018
WMO Greenhouse Gas Bulletin No. 14 is released.
19 Oct. 2018
WMO WDCGG Data Summary No. 42 is released.
31 Aug. 2018
This website is open to public including data users.
13 Mar. 2017
This website is open only to the data providers of GHG (including CO) data/metadata for data submission.
1 Jan. 2016
From 1 Jan. 2016, the responsibility related to archiving of reactive gases measurement data (except for CO) is transferred to the newly established GAW World Data Centre for Reactive Gases (WDCRG) hosted by the Norwegian Institute for Air Research (NILU). Click here for the WMO official letter on this transfer.