Copernicus ECMWF

📣Out now! We are pleased to release the European State of the Climate 2025 report, published jointly by #CopernicusClimate @ecmwf.int & @wmo-global.bsky.social. Explore climate conditions, key events of 2025 in Europe, long-term climate indicators, climate policy and action for biodiversity, more! ⬇️

New in the Climate Data Store: the global Groundwater Storage Change (GWSC) dataset, derived from satellite gravimetry, provides monthly storage anomalies on a regular 0.5° grid from April 2002 to September 2023. Access the dataset: cds.climate.copernicus.eu/datasets/sat...

Where are large methane plumes being detected globally, & what is their estimated source category? Explore the #CopernicusAtmosphere Methane Hotspot Explorer, with detections updated weekly across oil, gas, coal mining, urban emissions & landfill sites. 🔗 atmosphere.copernicus.eu/ghg-services...

Quick summary of almost 3 months of extreme Indonesia fire emissions & haze with #CopernicusAtmosphere Fire Emissions Watch apps.atmosphere.copernicus.eu/fire-emissio.... S Sumatra/Central Kalimantan/Papua all show persistent high values since August. @copernicusecmwf.bsky.social @ecmwf.int

Based on satellite imagery provided by GHGSat for CAMS, the large methane leak observed in eastern Niger earlier this month has been contained. CAMS analysis confirms that the methane plumes stopped on 20 October. Read more: atmosphere.copernicus.eu/copernicus-a... @ecmwf.int

The European Centre for Medium-Range Weather Forecasts ( @ecmwf.int ) invites tenders for the co-design of greenhouse gas policy services under #CopernicusAtmosphere, supporting collaboration with national inventory agencies. Deadline: 5 Nov 2026. 🔗 Info: atmosphere.copernicus.eu/cams254b-co-...

How can satellite & climate data support solar-panel efficiency forecasting? Join the free online workshop to explore the methodology, practical use cases & links between monitoring, forecasting & operational decisions. 🗓️ 27 October 🔗 howmuchsun.io/from-satelli... @ecmwf.int

@laurencerouil.bsky.social, #CAMS Director, introduces AIFS-COMPO, an experimental system forecasting ozone, particulate matter, aerosol optical depth, nitrogen dioxide & sulphur dioxide up to 10 days ahead, twice the 5-day horizon of operational forecast. 🔗 atmosphere.copernicus.eu/new-ai-model...

The 2026 Antarctic ozone hole is showing remarkable behaviour: it is one of the largest on record and still very large for the time of year, when the ozone hole area typically starts to decrease, but so far it has not been the deepest. Latest developments: atmosphere.copernicus.eu/monitoring-o...

Combining #Copernicus services builds a stronger understanding of Earth. Copernicus Land, Marine, Climate, Atmosphere and Emergency Management have collaborated to explore the water cycle and climate change’s impact on the process. https://bit.ly/4zJM15F @copernicusecmwf.bsky.social @eea.europa.eu

At the 10th #CAMS General Assembly in Athens, researchers exchanged ideas on science, projects and daily challenges. CAMS encouraged efforts to improve national models. Explore: atmosphere.copernicus.eu/10th-cams-ge... @ecmwf.int

New in the Climate Data Store: Indicators of Global Climate Change (IGCC). Annual updates of 11 headline indicators covering the state of the climate system and human influence, from greenhouse gas emissions to climate impact-drivers. Access the dataset: cds.climate.copernicus.eu/datasets/mul...

Introducing AIFS-COMPO, a new data-driven forecasting system for global atmospheric composition up to 10 days ahead. Adapting ECMWF’s AIFS to aerosols and reactive gases, AIFS-COMPO is trained on data from the Copernicus Atmosphere Monitoring Service. ➡️ www.ecmwf.int/en/about/med...

A satellite imagery analysis for CAMS provided by GHGSat in the framework of the Copernicus Contributing Missions shows the exact location & direction of the methane plume recently detected in Niger after a major oil well blowout. Read more: atmosphere.copernicus.eu/copernicus-a... @ecmwf.int

The 10th CAMS General Assembly has come to a close. Thank you to all speakers, participants & partners for three days of exchange on CAMS developments, user needs and the future of atmosphere monitoring. Special thanks to the National Observatory of Athens. 🔗 atmosphere.copernicus.eu/10th-cams-ge...

How can satellite & climate data support solar-panel efficiency forecasting? Join the free online workshop to explore the methodology, practical use cases & links between monitoring, forecasting & operational decisions. 🗓️ 27 October 🔗 howmuchsun.io/from-satelli...

The 10th CAMS General Assembly is underway in Athens, bringing together partners, researchers and users to share expertise, discuss the latest developments and shape priorities for future atmosphere monitoring services. Follow the plenary livestream: atmosphere.copernicus.eu/10th-cams-ge...

#CopernicusAtmosphere is closely tracking newly detected methane plumes resulting from a significant leak in eastern Niger. This finding was delivered by CAMS Methane Hotspot Explorer. 🔗 atmosphere.copernicus.eu/copernicus-a... Methane Hotspot Explorer: apps.atmosphere.copernicus.eu/methane-expl...

Our 10th CAMS General Assembly is taking place today and tomorrow in Athens, Greece. Today’s sessions will focus on the needs of Eastern European countries, review the past year, and look ahead to the next phase of CAMS. 🔗 Watch the livestream atmosphere.copernicus.eu/10th-cams-ge... #CAMSGA26

📊 The October 2026 edition of the #CopernicusClimate multi-system seasonal forecast is now available. 🔗 climate.copernicus.eu/seasonal-for... @ecmwf.int

🌡 The latest C3S Climate Bulletin reports September was the 2nd-warmest on record, at 1.63°C above the estimated pre-industrial level. The average sea surface temperature across the extra-polar ocean reached a September record of 21.05°C. climate.copernicus.eu/surface-air-...

The European Centre for Medium-Range Weather Forecasts (ECMWF) invites tenders for the co-design of greenhouse gas policy services under #CopernicusAtmosphere, supporting collaboration with national inventory agencies. Deadline: 5 Nov 2026. 🔗 Info: atmosphere.copernicus.eu/cams254b-co-...

Explore the CAMS #AtmosphereWatch: atmosphere.copernicus.eu/air-quality/...

🔥Wildfire emissions can affect air quality far from where fires are burning. During summer 2026, several smoke plumes from North America crossed the Atlantic towards Europe, while fires in Indonesia exposed populations to very high PM2.5 concentrations.

📢 Webinar programme available for the 8th Joint Training in Atmospheric Composition. 8 webinars, open to all, will take place between 6–16 Oct, with lectures & demonstrations on remote sensing, trace gas retrievals & wildfire monitoring. More info: atmostraining2026.esa.int @ecmwf.int @eumetsat.int

🌍 In 2026 (through 15 September), 51% of the global population was exposed to very or extremely poor air quality due to ground-level ozone. In Asia, 53% experienced extremely poor levels. Explore in the CAMS #AtmosphereWatch: atmosphere.copernicus.eu/air-quality/... @ecmwf.int @ec.europa.eu

Europe’s summer 2026 was marked by the exceptional persistence of heat, dry conditions, exceptionally warm seas & the most severe low-flow conditions for Europe as a whole in the record beginning in 1992. Read the summer review of #CopernicusClimate: climate.copernicus.eu/summer-revie... @ecmwf.int