This space is for the discussion of ongoing or recent weather events and their forecasts (please note ECMWF cannot provide any guidance on model output related to ongoing weather events), and other weather or forecasting topics of interest to ECMWF's forecast user community. Here, we welcome general discussions related to observations and observation data. For specific queries, you may wish to request information through the ECMWF Support Portal.
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The Mauna Loa Atmospheric Baseline Observatory recorded the highest CO₂ concentration in modern history. 09/06/2021. Credit: European Union, Copernicus Sentinel-3 imagery.