WMO Greenhouse Gas Bulletins

WMO publishes the Annual Greenhouse Gas Bulletins. Each year, these bulletins report the latest trends and atmospheric burdens of the most influential, long-lived greenhouse gases: carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), as well as a summary of the contributions of the lesser gases. The Bulletins represent the consensus of a consortium of networks operated since the mid 1980s. Summary information from the Greenhouse Gas Bulletins is included in the WMO State of the Global Climate reports and in the "United in Science" report.

The Bulletin features diverse cover-story and central-insert topics that reflect the added value of atmospheric observations and highlight specific processes that control variability and trends in the major greenhouse gases. The Bulletin also highlights some individual stations that contribute to the global network of long-term, high-quality greenhouse gas observations.

The launch of the Greenhouse Gas Bulletins is marked by a press conference led by the WMO Secretariat.

Click here to check the press conference for the most recent launch.

Click on the links below to find the most recent bulletins along with their translations:

Find the previous versions of the Bulletins here, and the Glossary here.