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  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 https://atmosphere.copernicus.eu/10th-cams-general-assembly-copernicus @ECMWF #CAMSGA26

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  #CopernicusAtmosphere is closely tracking newly detected methane plumes resulting from a significant leak in eastern Niger. This finding was delivered by the CAMS Methane Hotspot Explorer. Read more: https://atmosphere.copernicus.eu/copernicus-atmosphere-service-monitoring-ongoing-large-methane-leak-niger-oil-field Explore the Methane Hotspot Explorer app: https://apps.atmosphere.copernicus.eu/methane-explorer/ @ECMWF

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  Get highlights from the September #C3S Climate Bulletin: second warmest September on record globally, record-high average sea surface temperature over the extra-polar ocean, widespread dryness across parts of Europe, record-low September river flows in parts of major rivers, and more. Read the summary: https://climate.copernicus.eu/global-temperatures-remain-over-15degc-above-pre-industrial-levels-during-second-warmest-september @ECMWF

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  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: https://atmosphere.copernicus.eu/10th-cams-general-assembly-copernicus

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  Ten years after Athens hosted the first CAMS General Assembly, the event returned to the city for its 10th edition. Host Vassilis Amiridis reflects on Greece’s CAMS National Collaboration Programme: providing new services, supporting informed policymaking and connecting academia, research, industry and government. Explore more: https://atmosphere.copernicus.eu/10th-cams-general-assembly-copernicus

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  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 🔗 https://howmuchsun.io/from-satellite-data-to-solar-power-forecasting-pv-performance/

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  A satellite imagery analysis for CAMS provided by GHGSat in the framework of the Copernicus Contributing Missions shows the exact location and direction of the methane plume recently detected in Niger after a major oil well blowout. Read more about the detection: https://atmosphere.copernicus.eu/copernicus-atmosphere-service-monitoring-ongoing-large-methane-leak-niger-oil-field

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  The 10th CAMS General Assembly has come to a close in Athens. Thank you to all speakers, participants and 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 for co-organising with @ECMWF . Explore the event page: https://atmosphere.copernicus.eu/10th-cams-general-assembly-copernicus

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  Our Director of #CopernicusAtmosphere Laurence Rouil reflects on the intense days this week at the CAMS 10th General Assembly in Athens. Thanks to our hosts at the Academy of Athens, the National Observatory of Athens and the Hellenic Space Center for the amazing venues and their contribution to organising this very successful General Assembly. ⬇️

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  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: https://cds.climate.copernicus.eu/datasets/multi-origin-igcc-climate-change-indicators?tab=overview @ECMWF

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  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: https://atmosphere.copernicus.eu/10th-cams-general-assembly-copernicus @ECMWF

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  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. Follow the latest developments: https://atmosphere.copernicus.eu/monitoring-ozone-layer @ECMWF

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  Curious how Copernicus climate, atmosphere, marine, emergency management & land data work together? Explore The Odyssey of Water, an interactive story map focused on the Mediterranean, & see how datasets help us gain a more complete understanding of water: https://eu-space.europa.eu/earth-observation/copernicus/odyssey-water @ECMWF , @CopernicusEU , Copernicus Marine Service, Copernicus Emergency Management Service, Copernicus Land Monitoring Service and Copernicus In Situ.

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  Laurence Rouil, #CAMS Director, introduces AIFS-COMPO, an experimental system forecasting ozone, particulate matter, aerosol optical depth, nitrogen dioxide and sulphur dioxide up to 10 days ahead, twice the 5-day horizon of the operational forecast. First results suggest it can match or improve forecasts for several species. More info: https://atmosphere.copernicus.eu/new-ai-model-based-cams-atmospheric-composition-system-unveiled

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  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 🔗 https://howmuchsun.io/from-satellite-data-to-solar-power-forecasting-pv-performance/ @ECMWF

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  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: https://atmosphere.copernicus.eu/cams254b-co-design-ghg-policy-services-support-eu-member-states-and-copernicus-participating

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  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: https://atmosphere.copernicus.eu/copernicus-atmosphere-service-monitoring-ongoing-large-methane-leak-niger-oil-field @ECMWF

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  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. 🔗 https://atmosphere.copernicus.eu/ghg-services/cams-methane-hotspot-explorer @ECMWF

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  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: https://cds.climate.copernicus.eu/datasets/satellite-groundwater-storage

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  🌡 The July #C3S Climate Bulletin reports the joint‑second warmest July globally, 1.47°C above the pre‑industrial level. Western Europe saw its warmest June–July period on record amid persistent heatwaves. ⬇️

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  🔥Track global wildfire emissions in near-real time or look back at events since 2003. As fires burn worldwide, the “Fire Emissions Watch” app from #CopernicusAtmosphere provides fire emissions data and smoke plume forecasts based on the Global Fire Assimilation System (GFAS) dataset. Explore more: https://atmosphere.copernicus.eu/fire-emissions-watch-global-wildfire-emission-data-your-fingertips

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  #CopernicusClimate provides high-quality, reliable and freely available data that are easy to access and work with. Learn how Climate Scientist Dr @ZLabe@fediscience.org taps into these data via the Climate Pulse app, turning complex datasets into clear, compelling graphics that deepen understanding of our changing climate, showing the value of open data. Read the article: https://climate.copernicus.eu/evidence-understanding-game-changing-visualisations-powered-c3s-data @ECMWF@fediscience.org

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  Richard Engelen, Deputy Director of #CopernicusAtmosphere, explains how greenhouse gas monitoring will advance with the Copernicus anthropogenic CO2 Monitoring satellite constellation and the expansion of the CAMS system to include the estimation of emissions and natural surface fluxes in a comprehensive close-to-real-time monitoring system. 🔗 https://atmosphere.copernicus.eu/iwggms-building-future-satellite-based-greenhouse-gas-monitoring @DLR@social.bund.de

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  Long-range transport of smoke from late‑June wildfires in North America and Eurasia shows the 2026 boreal fire season is now picking up after a relatively calm start of the year. The #CopernicusAtmosphere is tracking emissions from these fires and others currently burning in southern Europe. Find out more: https://atmosphere.copernicus.eu/lowest-global-biomass-burning-emissions-record-during-first-half-2026 @ECMWF@fediscience.org

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  How do current temperatures compare with the average for this time of year? Powered by open data from #CopernicusClimate and forecasts from @ECMWF@fediscience.org the Reuters Climate Monitor helps users compare current temperatures with historical averages worldwide. Read more: https://climate.copernicus.eu/reuters-launches-climate-monitor-tool-powered-copernicus-climate-change-service-data

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  ❄ April 2026 saw the second-lowest Arctic sea ice extent for April in the 48-year satellite record, at 4.8% below average. In the Antarctic, sea ice extent was about 10% below average, ranking 11th-lowest for April. Get more sea ice insights in the #C3S Climate Bulletin. #CopernicusClimate. 🔗 https://climate.copernicus.eu/sea-ice-cover-april-2026?utm_source=socialmedia&utm_medium=MA&utm_campaign=climate-bulleting&utm_id=CB-04-2026

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  Rebecca Emerton, Senior Scientist @ECMWF and Lead Editor of #ESOTC2025, shares her perspective on the report. In this interview, she reflects on the finding that surprised her most, the result that deserves closer attention & how the report can help everyone make sense of Europe’s changing climate. 🌍 Explore the report: https://climate.copernicus.eu/esotc/2025?utm_source=socialmedia&utm_medium=MA&utm_campaign=european-state-of-the-climate-2025&utm_id=ESOTC-2025

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  ❄️ In 2025, much of Europe saw fewer snow days than average, while end‑of‑season snow cover extent was 31% below average and snow mass 45% below, both the 3rd lowest in 42 years. More in #ESOTC2025 from #Copernicus Climate @ECMWF and WMO https://climate.copernicus.eu/esotc/2025/snow?utm_source=socialmedia&utm_medium=MA&utm_campaign=european-state-of-the-climate-2025&utm_id=ESOTC-2025 #CopernicusClimate

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  📈 In 2025, at least 95% of Europe saw above‑average temperatures. 📉 The area of Europe experiencing winter days with freezing temperatures is shrinking 🌡️ and the continent saw its second most severe heatwave on record. Get more insight in the full report ➡️ https://climate.copernicus.eu/esotc/2025/temperature?utm_source=socialmedia&utm_medium=MA&utm_campaign=european-state-of-the-climate-2025&utm_id=ESOTC-2025 @ECMWF

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  🌡️ Europe is the fastest‑warming continent, warming at more than 2× the global average. Changing weather patterns, reduced air pollution, declining snow cover & proximity to the rapidly warming Arctic all play a role. Dive into the full analysis in #ESOTC2025 from #Copernicus Climate @ECMWF and WMO. 🔗 https://climate.copernicus.eu/esotc/2025/why-europe-warming-so-quickly?utm_source=socialmedia&utm_medium=MA&utm_campaign=european-state-of-the-climate-2025&utm_id=ES...