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[기타] WMO Greenhouse Gas Bulletin No. 20
세계기상기구(WMO)
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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.



The Baring Head station, which overlooks Cook Strait, has been operating since 1972 and the data collected there makes significant contributions to our global understanding of greenhouse gases.



Dave Allen, NIWA



The Greenhouse Gas Bulletin has been published annually since 2004. This publication presents the latest analysis of observations from the WMO Global Atmosphere Watch (GAW) Programme on concentrations of long-lived greenhouse gases in the atmosphere for 2023.



The Bulletin reports globally averaged surface mole fractions of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). It compares these values to those of the previous year and pre-industrial levels. Additionally, it provides insights into changes in radiative forcing — the warming effect on the atmosphere by long-lived greenhouse gases and details the contribution of individual gases to this effect.



The Greenhouse Gas Bulletin is released yearly to inform the United Nations Climate Change negotiations, the annual Conference of the Parties (COP).
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