Global Greenhouse Gas Watch


  • The World Meteorological Congress has approved a new greenhouse gas (GHG) i.e. Global Greenhouse Gas Watch monitoring initiative in a landmark decision, the World Meteorological Organization (WMO) said in a press note.

About Global Greenhouse Gas Watch

  • The initiative supports urgent action to reduce heat-trapping gases, which are fuelling temperature increases.
  • The new global GHG watch will fill critical information gaps and provide an integrated and operational framework. The framework will bring all space-based and surface-based observing systems, as well as modelling and data assimilation capabilities, under one roof.
  • The Congress resolution endorsing the establishment of the Global Greenhouse Gas Watch received unanimous support from WMO’s 193 members.

    Global Greenhouse Gas Watch
    Photo: iStock
  • The GHG watch will consist of four main components:
    • A comprehensive, sustained, global set of surface-based and satellite-based observations of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) concentrations, total column amounts, partial column amounts, vertical profiles and fluxes and supporting meteorological, oceanic, and terrestrial variables, internationally exchanged as rapidly as possible, pending capabilities and agreements with the system operators;
    • Prior estimates of the GHG emissions based on activity data and process-based models;
    • A set of global high-resolution Earth System models representing GHG cycles;
    • Associated with the models, data assimilation systems that optimally combine the observations with model calculations to generate products of higher accuracy.

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