Greenhouse Gas Bulletin

This Bulletin represents the latest analysis of observations from the WMO GAW Programme.

It shows globally averaged surface mole fractions for carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) and compares them with the mole fractions during the previous year and with ‌preindustrial levels. It also provides insights into the change in radiative forcing by long-lived GHGs (LLGHGs) and the contribution of individual gases to this increase.

Related press releases

Dense smoke billows into the sky above a field with sparse vegetation.
Communiqué de presse
28 octobre 2024

Greenhouse gas concentrations surge again to new record in 2023
An image of a burning earth with smoke coming out of it.
Communiqué de presse
15 novembre 2023

Greenhouse Gas concentrations hit record high. Again.
GHG_Bulletin_October_22.png
Communiqué de presse
26 octobre 2022

More bad news for the planet: greenhouse gas levels hit new highs
GHG Bulletin
Communiqué de presse
25 octobre 2021

Greenhouse Gas Bulletin: Another Year Another Record
GHG_Quote_Card_1
Communiqué de presse
23 novembre 2020

Carbon dioxide levels continue at record levels, despite COVID-19 lockdown
fallback-image-3
Communiqué de presse
25 novembre 2019

Greenhouse gas concentrations in atmosphere reach yet another high
Communiqué de presse
20 novembre 2018

Greenhouse gas levels in atmosphere reach new record
View all press releases

Publications connexes

Coastal landscape featuring a white lighthouse, small buildings, a vehicle, and a tall blue structure near a beach with clear blue water and distant hills under a clear sky.
Publication
28 octobre 2024

WMO Greenhouse Gas Bulletin No. 20
A rainbow is seen over a building with solar panels.
Publication
15 novembre 2023

WMO Greenhouse Gas Bulletin No. 19
WMO Greenhouse Gas Bulletin 10
Publication
26 octobre 2022

WMO Greenhouse Gas Bulletin - No.18: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2021
Greenhouse Gas Bulletin 17
Publication
25 octobre 2021

WMO Greenhouse Gas Bulletin - No.17: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2020
WMO Greenhouse Gas Bulletin 9
Publication
23 novembre 2020

WMO Greenhouse Gas Bulletin - No.16: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2019
Greenhouse Gas Bulletin 15
Publication
25 novembre 2019

WMO Greenhouse Gas Bulletin - No.15: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2018
Greenhouse Gas Bulletin 14
Publication
20 novembre 2018

WMO Greenhouse Gas Bulletin - No.14: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2017
WMO Greenhouse Gas Bulletin 13
Publication
30 octobre 2017

WMO Greenhouse Gas Bulletin - No.13: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2016
WMO Greenhouse Gas Bulletin 12
Publication
24 octobre 2016

WMO Greenhouse Gas Bulletin - No.12: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2015