Our last Charts of the Month of the year with three charts based on #CopernicusAtmosphere data: 📉 Daily fire locations, intensity and smoke plumes between 1 January and 30 November 2025 – CAMS 1️⃣ bsky.app/profile/cope... Read the article: atmosphere.copernicus.eu/copernicus-w...

🎉 2025 was a landmark year for ECMWF. From bringing AI-based weather forecasting into operations, to delivering vital climate insights through @copernicusecmwf.bsky.social, advancing Destination Earth (#DestinE), opening access to our Real-time Catalogue, and celebrating 50 years of ECMWF. 🧵

Our last Charts of the Month of the year with three charts based on #CopernicusClimate data:    📈 2025 is on course to become joint second-warmest year - C3S  📈 Surface Air Temperature Anomaly for November 2025 - C3S  📈 Polar night and midnight sun in the polar regions – @zacklabe.com

🧵 You’re invited! Join the 9th CAMS Policy User Workshop in Budapest on 4–5 March 2026 hosted by HungaroMet and organised with the 2026 FAIRMODE plenary.

You don't have to be a climate scientist to make climate data work for you! Our new free Online Course starts in February. Learn how to leverage C3S data for your purpose. Register now: learning.ecmwf.int/enrol/index.... @w-u-r.bsky.social @ecmwf.int #CopernicusClimate

Read how E‑DREAM, funded by Copernicus & developed as a joint #CopernicusClimate & #CopernicusAtmosphere demonstrator case in collaboration with the Union for the Mediterranean (UfM), is using C3S & CAMS data to support climate‑resilient wind & solar investments across the Mediterranean. ⬇️

Mark your calendar: tender deadline 17/2/2026. Develop & operate a regional benchmark system supporting the CO2MVS global monitoring system. The system will use regional inverse modelling & high-quality in situ data, with Integrated Carbon Observation System (ICOS) observations at its core. ⬇️

How does #CopernicusAtmosphere data power real‑world decisions? From air quality forecasts to greenhouse gas monitoring & ozone tracking, CAMS supports policy, public health, climate action and renewable energy worldwide. ▶️ Watch our new video here: youtu.be/dZkNLTcxn9Y?...

Save the date! CAMS, @ecmwf.int and the German Space Agency at DLR will host the 22nd International Workshop on Greenhouse Gas Measurements from Space (IWGGMS‑22) in Bonn, 29 June–2 July 2026. Stay tuned for details. @dlr-spaceagency.bsky.social

📣 Coming soon! On 14 January 2026, we will release the Global Climate Highlights 2025 report, our annual summary of global climate conditions for the year 2025, based on the latest data and analysis from #CopernicusClimate. Stay tuned. More info ⬇️

Help shape the future of the Copernicus Interactive Climate Atlas (C3S Atlas)! We want to hear how you use the C3S Atlas today and what additions or improvements you would like to see next. Your anonymous feedback will guide the further development of the Atlas and related products. More info ⬇️

📢 Deadline coming soon! Submit your tenders to advance the #CopernicusAtmosphere system for tracking greenhouse gases. Improve the land surface processes enhancing (CO₂) and methane (CH₄) modelling. Deadline: 15/01/2026 atmosphere.copernicus.eu/cams252abis-...

New in the EU Space Observer: an in‑depth look at the 2025 Antarctic ozone hole. Learn about the weakest, shortest‑lived ozone hole in five years, new Sentinel‑5 observations & how #CopernicusAtmosphere is tracking ozone recovery. Go to the article: www.copernicus.eu/en/news/news...

Help shape the future #C3S Water Service! Take part in our survey to help us understand your hydrological information needs, design the future of a global, user‑oriented platform with historical data, seasonal forecasts & climate projections.📋 wur.az1.qualtrics.com/jfe/form/SV_... @ukceh.bsky.social

🌡️ November 2025 was the third-warmest November on record globally, keeping 2025 on track to be the second- or third-warmest year recorded. The global three-year average temperature for 2023–2025 will likely exceed 1.5°C above pre-industrial levels for the first time.  Read more ⬇️

@ecmwf.int invites tenders to develop & operate a regional benchmark system supporting the CO2MVS global monitoring system. The system will use regional inverse modelling & high-quality in situ data, with Integrated Carbon Observation System (ICOS) observations at its core. More info ⬇️

#CopernicusClimate has released its first data from the Copernicus pan-Arctic Regional Reanalysis (CARRA2): 2.5 km pan‑Arctic coverage, 24 years of data in the Climate Data Store, more realistic physics & improved details for local extremes, lots of added details with respect to ERA5. ⬇️

Have you read our deep dive into this year’s Antarctic #OzoneHole yet? Our latest article unpacks the 2025 development which resulted in the smallest and shortest-lived ozone hole in five years. Catch up here: atmosphere.copernicus.eu/smallest-and... #CopernicusAtmosphere

💧Our #C3S Climate Bulletin shows November 2025 was wetter than average across the UK, Ireland, Portugal, Spain, northwestern Russia and much of the Balkans, with heavy rainfall in Albania and Greece. Storm Claudia contributed to wet conditions in western Europe. Find out more info ⬇️

❄ November 2025: Arctic sea ice extent ranked second-lowest for November in the 47-year satellite record at 12% below average. Antarctic extent was the fourth-lowest for the month, 7% below average. Find out more ⬇️

2025 is on course to be joint-second warmest year. The #C3S Climate Bulletin reports that November was 1.54°C above pre-industrial levels, making it the third-warmest November on record. The 2023–2025 average is likely to be the first three-year average exceeding 1.5°C. Find more info ⬇️

🔥 From record wildfire emissions in Europe to large-scale wildfires in Canada, California and around the Mediterranean, #CopernicusAtmosphere data show how wildfires throughout 2025 degraded air quality far beyond where the fires burn. Read our article: atmosphere.copernicus.eu/copernicus-w...

🌍 The #C3S Atlas keeps growing – and so does its global user base. Thousands of users in 157 countries now access climate projections, observations and reanalyses via the Atlas app. New user tools now make it even more transparent, flexible and user-friendly.

🌏 New #C3S dataset! The first Comprehensive Upper-air Observation Network dataset (1901–present) from balloon ascents is now available in the Climate Data Store. Discover this invaluable resource for climate science & ERA6. Go to #CDS 👉 cds.climate.copernicus.eu/doi/10.24381... #CopernicusClimate

With the 2025 ozone hole now closed, our latest #AskAScientist video features Johannes Flemming explaining why the Antarctic ozone hole reappears annually, when it might close for good & how global action has made a difference. Find out more ⬇️ #CopernicusAtmosphere

📢 @ecmwf.int invites tenders to analyse and improve treatment of the stratosphere in #C3S climate reanalyses. The contract will advance developments in the ECMWF Integrated Forecasting System (IFS), run assimilation experiments, assess ERA6 quality and more. 📅 Deadline: 21 January. ⬇️

Day 2 of the 5th EU #CleanAirEU Forum focuses on air quality and policy. Freely available #CopernicusAtmosphere data and tools help to understand air quality impacts in Europe and design effective policies. CAMS air quality policy tools: atmosphere.copernicus.eu/policy-tools @ecmwf.int #CleanAirEU

Day 1 of the 5th EU #CleanAirEU Forum was packed with discussions on how to improve air quality across Europe. @ecmwf.int

The 2025 Antarctic #OzoneHole closed today, 1 Dec. – the earliest since 2019 and the smallest & shortest-lived in 5 years. Do you know how #CopernicusAtmosphere tracks ozone hole development? Or how global efforts are making a difference? Find out here: atmosphere.copernicus.eu/smallest-and...

🎥 Live in 1 hour! Watch the livestream of the EU Clean Air Forum, starting at 14:00 CET with an opening keynote by Jessika Roswall, Commissioner for Environment, Water Resilience and a Competitive Circular Economy. 🔗 eucleanairforum.wmhproject.events/en/webstream... #CleanAirEU

Sentinel-4 & Sentinel-5 features will be demonstrated at the 5th Clean Air Forum, highlighting their vital role in CAMS monitoring of key air quality trace gases & aerosols, offering timely, high-res data over Europe. 🔗 atmosphere.copernicus.eu/sentinel-5-m... #CopernicusAtmosphere #ECMWF

Three charts based on #CopernicusClimate data you shouldn’t miss this month: 📈 2025 projected to finish as 2nd or 3rd warmest year on record-C3S 📈 Oct. 2025 was the third-warmest October globally-C3S 📈 Reconstructing the weather behind the SS Edmund Fitzgerald sinking with ERA5-Tim Wagner/CIMSS

Our #CopernicusAtmosphere Assessment Report on European Air Quality shows that levels of key pollutants NO₂, PM2.5 & PM10 were lower in 2024 than most of the previous ten years. At the 5th EU Clean Air Forum, stakeholders are working together to advance clean air policy. @ecmwf.int ⬇️

🌍 Discover how ECMWF’s 2025 @codeforearth.bsky.social projects harnessed #CopernicusAtmosphere and #CopernicusClimate data to drive open-source innovation in Earth system modelling. Read the articles: 🔴 climate.copernicus.eu/code-earth-2... 🔵 atmosphere.copernicus.eu/ecmwf-code-e...

📉 Global annual total estimated emissions of total carbon from biomass burning from 2003 to 2025 – CAMS 📉 High PM2.5 levels across the Po Valley on 12 November – @adamplatform.bsky.social 📉 Biomass burning aerosol forecast initiated on 6 September – Ernesto Barrera / @aemet.es

First global images from Sentinel-5A highlight the ozone hole, pollution hotspots, wildfire & volcanic emissions & more! High-res imaging from Sentinel-5A advances global air quality monitoring & strengthens #CopernicusAtmosphere data insight. Read the article about Sentinel-5 ⬇️

Unlock the power of climate data in your field! The first of three FREE #C3S short online courses launches Feb. 2026. Find, interpret & use climate data at work. No background in climate science needed. More Registration info soon. 🔗 climate.copernicus.eu/online-cours... #CopernicusClimate

Modelling stratospheric composition for the #CopernicusAtmosphere Monitoring Service: multi-species evaluation of IFS-COMPO Cy49 by Chabrillat et al. published in @egu.eu Geoscientific Model Development gmd.copernicus.org/articles/18/... #AtmosChem @copernicusecmwf.bsky.social @ecmwf.int

Are #C3S applications meeting your needs? We want to know! Share your feedback in our brief survey and help #CopernicusClimate enhance its services and applications. Your input makes a difference! 👉 docs.google.com/forms/d/e/1F... Not familiar with our C3S applications? ⬇️​

The 5th EU Clean Air Forum from 1-2 Dec. will highlight advances in satellite data, AI-driven air monitoring, policy innovation & more during the 2025 edition co-hosted by #ECMWF and @ec.europa.eu in Bonn. See the agenda ➡️ environment.ec.europa.eu/document/dow... #CopernicusAtmosphere

📢 Grant deadline extended to 3 December! Drive uptake of #CopernicusAtmosphere data, build capacity & foster collaboration to address atmospheric challenges & impacts via the National Collaboration Programme (NCP). Learn more & apply: atmosphere.copernicus.eu/grants

How does the CAMS Methane Hotspot Explorer detect high-emission methane plumes from space? Senior Scientist at Space Research Organisation Netherlands (SRON - @sronspace.bsky.social), Ilse Aben explains the machine learning behind it. Watch the video. #CopernicusAtmosphere

📢 Don't miss this opportunity to advance the #CopernicusAtmosphere system for tracking greenhouse gases. Improve the land surface processes enhancing (CO₂) and methane (CH₄) modelling. Deadline: 15/01/2026 atmosphere.copernicus.eu/cams252abis-...

Track daily CO₂ emissions by country, city and sector with the Carbon Monitor Europe (CM-EU) app. Filter, compare and explore daily, weekly and seasonal variations with near-global coverage. Explore the app: atmosphere.copernicus.eu/ghg-services... #CopernicusAtmosphere

❗Just one month left! Apply by 18 Dec. to enhance the #C3S Energy Service. Lot 1: Co-develop online seasonal demonstrators & tools; Lot 2: maintenance of operational services for the energy sector. Full details: climate.copernicus.eu/c3s2412bis-e...

Laurence Rouil, CAMS Director, highlights the evolution of CO₂ in the atmosphere & how it is driven by human activity & impacts climate change. "With this, I hope global leaders are equipped with the insight to turn ambition into action." #CopernicusAtmosphere #COP30

The Copernicus In Situ Component highlights the collaboration between #CopernicusAtmosphere & ICOS (@icos-ri.eu) to monitor greenhouse gas emissions. In-situ & satellite data deliver vital insights for the #ParisAgreement goals. Read more: insitu.copernicus.eu/news-and-eve...

International collaboration drives daily, integrated global air quality forecasts. Hear from Guy Brasseur, Senior Scientist and Group Leader at Max Planck Institute for Meteorology, as he explains how Europe is leading progress in atmospheric modelling. #CopernicusAtmosphere

The updated PECD v4.2 dataset by #CopernicusClimate and @ENTSO-E is now available in the #CDS. New aggregation levels & more. More information and access at the Forum forum.ecmwf.int/t/updates-to...

The steady and continuous growth of our user base continues. The Climate Data Store (CDS) has gained over 200,000 registered users since our major upgrade last year. Thank you to each and every one! ⬇️