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Agency for Meteorology, Climatology and Geophysics, Agency on Hydrometeorology under Ministry of Emergency Situations of the Kyrgyz Republic, AGH University of Krakow, Aichi Air Environment Division, Atmospheric Chemistry Research Group School of Chemistry University of Bristol, Center for Environmental Science in Saitama, China Meteorological Administration, CNR-Institute of Atmospheric Pollution Research, Commonwealth Scientific and Industrial Research Organisation, Department of Applied Environmental Science, Stockholm University, Direccion Meteorologica de Chile, Direcion Nacional del Antartico- Istituto Antartico Argentino, Buenos Aires, Argentina, Egyptian Meteorological Authority, Environment and Climate Change Canada, Federal Environment Agency Austria, Finnish Meteorological Institute, Fisheries Research Agency, Fraunhofer-Institute for Atmospheric Environmental Research, German Environment Agency, German Meteorological Service, Global Monitoring Laboratory, NOAA, Hong Kong Observatory, Hungarian Meteorological Service, Institute for Nuclear Research, Institute for Nuclear Research and Nuclear Energy, Institute of Environmental Protection - NRI, Instituto Geofisico del Peru, Italian Air Force Mountain Centre, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Japan Agency for Marine-Earth Science and Technology, Japan Meteorological Agency, Kenya Meteorological Department, Korea Meteorological Administration, Kyrgyz National University, Laboratoire des Sciences du Climat et de l'Environnement, Malaysian Meteorological Department, Meteorological Research Institute, National Institute for Environmental Studies, National Institute in Space Research, National Institute of Advanced Industrial Science and Technology, National Institute of Environmental Research, National Institute of Meteorological Research, KMA, National Institute of Public Health and the Environment, National Institute of Water & Atmospheric Research Ltd., National Meteorological Administration, National Physical Laboratory, National Research Council, Institute of Atmospheric Sciences and Climate, Norwegian Institute for Air Research, Osaka University, Physics Institute, Climate and Environmental Physics, University of Bern, Ricerca sul Sistema Energetico - RSE S.p.A., Shizuoka University, South African Weather Service, State Meteorological Agency of Spain, Swiss Federal Laboratories for Materials Science and Technology, Tohoku University, University of Exeter, University of Malta, University of York, Viet Nam Meteorological and Hydrological Administration, Voeikov Main Geophysical Observatory,

AbdElhamid Gouda Elawadi (EMA), Adelaide Dinoi (ISAC), Ahmad Fairudz Jamaluddin (MMD), Akihiko Murata (JAMSTEC), Alcide di Sarra (ENEA), Alfred Micallef (UMLT), Andrea Lanza (RSE), Andreas Wolf (UBAA), Angelo Viola (ISAC), Ann Stavert (CSIRO), Anna Degorska (IOEP), Arifin, Ikhsan Buyung (BMKG), Birgitta Noone (ITM), Carlos Torres (AEMET), Casper Labuschagne (SAWS), Cedric Couret (UBAG), Chris Lunder (NILU), Chris Rennick (NPL), Christian Plass-Dulmer (DWD), Christoph Zellweger (Empa), Claudia Calidonna (ISAC), Colm Sweeney (NOAA), Daegeun Shin (KMA), Dagmar Kubistin (DWD), Daisuke Goto (NIPR), Damiano Sferlazzo (ENEA), Daniel Gullì (ISAC), David Murithi Njiru (KMD), Doug Worthy (ECCC), E Kozlova (UoE), Elise Guerette (CSIRO), ENYO Kazutaka (JMA), Eunjung Kim (GERC), Fabrizio Anello (ENEA), Felice Dipace (IAFMS), Florin Nicodim (INMH), Francesco Apadula (RSE), Francesco Monteleone (ENEA), Francescopiero Calzolari (ISAC), Frank Meinhardt (UBAG), Gaston Torres (DMC), Giorgia De Bendetto (ISAC), Giorgio Tranchida (IASCNR), Giovanni Giacalone (IASCNR), Gulzhan Esenzhanova (Kyrgyzhydromet), Haeyoung Lee (KMA), Hans-Christen (ITM), Hidekazu Matsueda (MRI), Hitoshi MUKAI (NIES), Horacio Rodriguez (IAA), Ignazio Fontana (IASCNR), Iris Buxbaum (UBAA), Ivano Ammoscato (ISAC), Jaroslaw Necki (AGH), Jennifer Müller-Williams (DWD), Jiyoung Kim (GERC), Joseph Pitt (UNIVBRIS), Juha Hatakka (FMI), Jörg Klausen (MeteoSwiss), Katie Read (UYRK), Kazuhiro Tsuboi (MRI), Kentaro ISHIJIMA (MRI), Kieran Stanley (UNIVBRIS), Kirk Thoning (NOAA), Koji Ohno (AICH), Krzysztof Skotak (IOEP), Laszlo Haszpra (ATOMKI), LIANG Miao (CMA), Luana Malacaria (ISAC), Luciana Vanni Gatti (INPE), Lucy Carpenter (UYRK), Ludwig Ries (UBAG), Luigi Lauria (IAFMS), Lukasz Chmura (AGH), M.C.Lam (HKO), Mariantonia Bencardino (IIA), Markus Leuenberger (KUP), Martin Saliba (UMLT), Martin Steinbacher (Empa), Marvic Grima (UMLT), Masao Ishii (MRI), Mathew Mutuku (KMD), Matthias Lindauer (DWD), Maurizio Busetto (ISAC), Michel Ramonet (LSCE), Mitsuo Toda (SHIZU), Mohan Kumar Sammathuria (MMD), Mutsumi Ishitsuka (IGP), Nahas, Alberth Christian (BMKG), Nguyen Nhat Anh (VNMHA), Nina Paramonova (MGO), Okaem, Tanti Tritama (BMKG), ONO Etsuro (JMA), Ove Hermansen (NILU), Paolo Cristofanelli (ISAC), Paul Krummel (CSIRO), Pedro Rivas (AEMET), Ray Langenfelds (CSIRO), Reza Mahdi (BMKG), Ronald Spoor (RIVM), Salvatore Piacentino (ENEA), Salvatore Sinopoli (ISAC), Shigeyuki Ishidoya (AIST), Shinji Morimoto (TU), Shohei Murayama (AIST), Simon O'Doherty (UNIVBRIS), Stefano Amendola (IAFMS), Stephen Matthew Platt (NILU), Sylvia Nichol (NIWA), Taejin Choi (KOPRI), Takashi Machimura (OSAKAU), TAKATSUJI Shinya (JMA), Tatiana Di Iorio (ENEA), Thomas Trickl (IMKIFU), Todor Arsov (INRNE), Tomohiro Oda (USRA), Toshinobu Machida (NIES), Tove Svendby (NILU), Tsuneo Ono (FRA), Tuomas Laurila (FMI), V. Sinyakov (KSNU), Viktor Ivakhov (MGO), W.H. Leung (HKO), Wael Khaled (EMA), Wolfgang Spangl (UBAA), Xin Lan (NOAA), Yosuke MUTO (SAIPF), Yosuke Niwa (NIES), Yousuke Sawa (MRI), Yukio TERAO (NIES), Zdzislaw Przadka (IOEP), Zeinab Salah (EMA), Zoë Loh (CSIRO), WDCGG; All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2025-05-26, (Reference date^*: YYYY/MM/DD)

* As the reference date, please indicate the date you downloaded the files.