Since 2006, WMO has published annual Greenhouse Gas Bulletins. These Bulletins report on the latest atmospheric abundances and rates of change for the main long-lived greenhouse gases (LLGHGs) – carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O) – and provide a summary of contributions from other greenhouse gases.
Detailed data from the latest WMO Greenhouse Gas Bulletin, including csv data files, are available on Current State of GHGs.

No	Release Date	Details	PDF (EN)	Contributor /Station
No.20	28 October 2024	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2023	WMO website	list
No.19	15 November 2023	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2022	WMO website	list
No.18	26 October 2022	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2021	WMO website	list
No.17	25 October 2021	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2020	WMO website	list
No.16	23 November 2020	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2019	WMO website	list
No.15	25 November 2019	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2018	WMO website	list
No.14	22 November 2018	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2017	WMO website	list
No.13	30 October 2017	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2016	WMO website	list
No.12	24 October 2016	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2015	WMO website	list
No.11	9 November 2015	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2014	WMO website	list
No.10	6 November 2014	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2013	WMO website	list
No.9	6 November 2013	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2012	WMO website	list
No.8	19 November 2012	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2011	WMO website	list
No.7	21 November 2011	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2010	WMO website	list
No.6	24 November 2010	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2009	WMO website	list
No.5	23 November 2009	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2008	WMO website	list
No.4	14 November 2008	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2007	WMO website	list
No.3	23 November 2007	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2006	WMO website	list
No.2	1 November 2006	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2005	WMO website	list
No.1	14 March 2006	The State of Greenhouse Gases in the Atmosphere Using Global Observations up to December 2004	WMO website	list

The WMO Greenhouse Gas Bulletins translated into Japanese are available on the JMA website .