cover image: WMO Greenhouse Gas Bulletin (GHG Bulletin) - No.18


WMO Greenhouse Gas Bulletin (GHG Bulletin) - No.18

27 Oct 2022

The Greenhouse Gas 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 the preindustrial levels. It also provides insights on the change in radiative forcing by long-lived GHGs (LLGHGs) and the contribution of individual gases to this increase.
climate emissions


World Meteorological Organisation

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