It was a pleasure to welcome Patrick Nédellec, Counsellor for Science and Technology at the French Embassy in London, and Professor Christophe Cudennec to ECMWF today. A great opportunity to discuss our work and the importance of international collaboration in advancing Earth system science.

Three things you’ll be able to do after our MOOC: 1️⃣ Undertand what climate data are and how they are produced 2️⃣ Pick the right type of climate data for your sector 3️⃣ Find and interpret trusted #C3S data with confidence @ecmwf.int @w-u-r.bsky.social ⬇️

🌍🌐 Registration open for our new machine learning (ML) online course! Discover how ML is shaping Earth system modelling. This is the first course in ECMWF’s new ML training series under #DestinE. Register now: learning.ecmwf.int/enrol/index....

🔥 Wildfire risk isn’t just about weather – local conditions like vegetation, land management and human activity all play a role. The Probability of Fire (PoF)-Toolbox helps you build your own machine-learning fire-danger models using local data. ➡️ www.ecmwf.int/en/about/med...

🌍🌐 Partners from across Europe, working on the Climate DT of the EU DestinE initiative, met in Helsinki. Led by CSC, and working in close collaboration with ECMWF, the consortium reviewed steps towards operationalisation. Read more ➡️ destine.ecmwf.int/news/partner...

This @financialtimes.com article highlights the agreement of the 3rd phase of #DestinE, an @ec.europa.eu initiative that ECMWF contributes to. Its aim is to build highly accurate digital twins of the Earth to understand and better prepare for risks caused by extreme weather and climate change.

Celebrating International Day of Women and Girls in Science, we spoke to CAMS Director Laurence Rouil about her unconventional route into atmospheric science and her advice for women and girls pursuing STEM. #IDWGS @copernicusecmwf.bsky.social ➡️ www.ecmwf.int/en/about/med...

Something new is building. 🌍 The Code for Earth 2026 teaser is out now — a first glimpse into the next edition of our programme where open data, collaboration and climate innovation come together. If you’re curious about what’s coming next, hit play. youtu.be/i41vTFdBoIU #CodeForEarth

📃 A new paper published in npj Artificial Intelligence describes AIFS-CRPS, an ensemble variant of ECMWF’s machine-learned Artificial Intelligence Forecasting System (AIFS). ➡️ doi.org/10.1038/s443...

📣 Registration and abstract submission are now open for a workshop on #MachineLearning for Land and Hydrology 🗓️ 3–5 November 2026 📍 Reading, UK If you are an expert in ML, hydrology, and land-surface modelling, find out more here ➡️ events.ecmwf.int/event/530/

Today, we welcomed a delegation of over 30 guests from the Caribbean at our Bonn office as part of the EU Caribbean study tour on Disaster Risk Management. During their visit, the participants met some of our experts and were introduced to ECMWF data, products and services. @fiap.gob.es

🌍 Join the AI ECMWF Weather Quest DJF Awards webinar Halfway through the first forecasting year, the AI Weather Quest has now completed the December–January–February (DJF) forecasting period. A record 37 international teams contributed AI-based sub-seasonal forecasts over the period. 🧵

📣📰 The winter 2025/26 issue of the ECMWF Newsletter is now available to read. ➡️ www.ecmwf.int/en/elibrary/...

🌍🌐 We’re in Helsinki for the Climate Digital Twin Project Meeting, part of the EU’s DestinE initiative. Led by CSC, and in close collaboration with ECMWF, the event brings together experts from across Europe to exchange knowledge, strengthen collaboration, and discuss strategic topics.

🎓Early-career scientists: Applications are open for the European Meteorological Society’s Young Scientist Conference Award (YSCA), offering support for travel costs to Reading, UK for our Annual Seminar. Learn more and apply ➡️ www.emetsoc.org/awards/award...

Why register for our MOOC? Because climate change is shaping decisions now. In this FREE, self-paced #CopernicusClimate online course designed for non-experts, you’ll learn: ⬇️ @ecmwf.int @w-u-r.bsky.social

🆕: The EUMETSAT Council has approved our continued involvement in #DestinE, boosting the Data Lake component as Phase Three of the EU’s digital twin initiative begins. 👏 The next phase will strengthen data access and AI-ready services for Europe’s scientific and institutional users: bit.ly/3ZcGULg

🌍🌐 We’re pleased to announce that ECMWF signed an agreement with the European Commission for the third phase of DestinE, the EU’s flagship initiative to build highly accurate digital twins of the Earth. Read more ➡️ www.ecmwf.int/en/about/med...

Just 4 weeks until our MOOC starts! The first of three FREE and self-paced #C3S short online courses launches 23 Feb. 2026. Find, interpret & use climate data at work. No background in climate science needed. Register now: climate.copernicus.eu/online-cours... #CopernicusClimate

📣 Workshop on software strategies for sustainable physical modelling, 23–27 Nov 2026. Focus on sustainable and adaptable modelling approaches for weather and climate systems, from agile coding practices to integrating machine learning into forecasting tools. Details ➡️ events.ecmwf.int/event/529/

Three charts based on #CopernicusAtmosphere data you shouldn’t miss this month: 📉 Global #wildfires #openburning intensity & emissions for December 2025 - @mparrington.bsky.social 1️⃣ bsky.app/profile/mpar...

🌍🌐 New ITT: We’re seeking partners to develop a high-resolution AI-based Earth system modelling capability for European domains under the DestinE initiative of the European Commission. 📅 Deadline: 16 March More information ➡️ destine.ecmwf.int/news/build-c...

Throughout the year, we’re hosting a number of events, workshops and training courses, bringing together experts from across Member States and the wider international community. Explore our events and register ➡️ www.ecmwf.int/en/about/med...

ECMWF at #AMS2026 today, Wednesday: Data-driven forecasting systems at ECMWF ams.confex.com/ams/106ANNUA... The role of AI in weather forecasting operations and weather services ams.confex.com/ams/106ANNUA... The Anemoi framework – a status report ams.confex.com/ams/106ANNUA...

🌍🌐 New training opportunity! Machine learning is rapidly transforming how we understand and predict weather and climate. Under the Destination Earth (#DestinE) initiative, ECMWF is developing a new series on machine learning for Earth systems modelling. Read more ➡️ destine.ecmwf.int/ml-training/

ECMWF at #AMS2026 today, Tuesday: Adapting the AIFS for sub-seasonal forecasts, ams.confex.com/ams/106ANNUA... 9:00 CST/15:00 GMT ECMWF research to define a new paradigm of Earth system prediction, ams.confex.com/ams/106ANNUA... 9:30 CST/15:30 GMT

📣 Workshops now open for registration and abstract submission: • 2026 AR Recon workshop • 2nd Observational campaigns workshop for better weather forecasts 📍 Reading, UK 🗓️ 29 June–3 July 2026 Open to experts involved in AR Recon & field campaigns. ➡️Full details: events.ecmwf.int/event/519/

ECMWF at #AMS2026 today, Monday: Becky Hemingway on early warning services, ams.confex.com/ams/106ANNUA..., 8:30 CST Angel Lopez Alos on the ECMWF Data Stores Service, ams.confex.com/ams/106ANNUA..., 10:45 CST Emma Pidduck on open weather and climate data, ams.confex.com/ams/106ANNUA..., 11:00 CST

Join us at #AMS2026 for talks on open data, research in Earth system prediction, data-driven forecasting at ECMWF, Anemoi, sub-seasonal forecasts with the AIFS, and the emerging role of AI in weather forecasting. Full programme ➡️ ams.confex.com/ams/106ANNUA... @ametsoc.org

🌡️ December 2025 was the fifth-warmest December on record globally 🧊 In the Arctic, sea ice extent was the lowest ever recorded for December. Read the #C3S monthly Climate Bulletin summary: climate.copernicus.eu/december-202... #CopernicusClimate

📣 Using ECMWF’s Forecasts 🗓️ 1–4 June 2026, Reading, UK Registration and abstract submission are open for UEF2026, with a focus on extreme temperature forecasts. Presentations, workshops, and user discussions welcome. ➡️ Full info and registration: events.ecmwf.int/e/UEF2026

This year, our Global Climate Highlights report comes with a graphics gallery, featuring all 12 visuals from the report + 10 additional visuals – many of them interactive and animated. @ecmwf.int ⬇️

🌍🌐 There is still time to register for our webinar ‘Exploring an ethics framework for AI in weather and climate predictions’ on 27 January, 9:00–12:00 CET. More information and registration ️➡️ destine.ecmwf.int/news/webinar...

🌍🌐 Our new animation explores the development of the AI-based land component, a key step toward a fully ML-driven Earth system models in the Destination Earth (#DestinE) initiative of the EU. Watch the full video here: destine.ecmwf.int/video/destin...

🌡 Human activity is driving the rise in global average temperature, explains Samantha Burgess, Strategic Climate Lead at @ecmwf.int. With 2023–2025 the warmest years on record, greenhouse gases are the main contributor to the warming trend. 🔗 climate.copernicus.eu/global-clima... @oceanterra.org

New #AIFS blog: with colleagues from Ghent University/RMI, we examine how training strategies affect tropical cyclone forecasts in machine-learning weather models. ➡️ www.ecmwf.int/en/about/med...

How warm was Europe in 2025? 🔍 It was the third‑warmest year on record for Europe, with an average temperature of 10.41°C, 1.17°C above the 1991–2020 average and 0.30°C below the record year of 2024. #CopernicusClimate #GCH2025 🔗 climate.copernicus.eu/global-clima... @ecmwf.int

🌡️ WMO confirms 2025 was one of warmest years on record. 2025 was one of the 3 warmest years on record, with the global average surface temperature at 1.44°C ± 0.13°C above the 1850-1900 average, according to WMO’s consolidated analysis of 8 datasets. 🔗 https://bit.ly/49xpkWP

In 2025, the annual average sea surface temperature (SST) outside of the polar regions ranked 3rd‑warmest on record. Monthly extra‑polar SST stayed among the top four throughout 2025, despite the absence of an El Niño event. Details in #GCH2025 ➡️ climate.copernicus.eu/global-clima... @ecmwf.int

Carlo Buontempo, Director of the Copernicus Climate Change Service (C3S) @ECMWF emphasises how the global average temperature exceeded 1.5°C over a three-year period (2023–2025) – the first time in the #ERA5 record – bringing us closer to the Paris Agreement threshold. @ecmwf.int ⬇️

In 2025, global sea ice extent saw a record low: In February, combined Arctic + Antarctic sea ice extents fell to the lowest level in the satellite records. @ecmwf.int ⬇️

🌍🌐 Our first AI DestinE blog of the year looks at a prototype ML sea ice model developed in the framework of the #DestinE initiative, learning from decades of data to predict sea ice and surface-ocean changes. Read more ➡️ destine.ecmwf.int/news/destine...

Which latitudes saw the largest temperature anomalies in 2025? While the tropics contributed less to 2025’s global temperature anomaly than in 2024 and 2023, the Antarctic region recorded its warmest year on record and the Arctic its 2nd warmest. 🔗 climate.copernicus.eu/global-clima... @ecmwf.int

The global warming trend continued in 2025. Each of the past 11 years (2015–2025) has been among the 11 warmest on record. Explore more data from #CopernicusClimate in the Global Climate Highlights 2025. #GCH2025 🔗 climate.copernicus.eu/global-clima... @ecmwf.int

🌡️ 2025 was the third-warmest year on record, with a global average temperature 0.59°C above the 1991–2020 average & 1.47°C above the 1850–1900 pre-industrial level. It was 0.13°C below 2024, the warmest year on record, and only 0.01°C cooler than 2023. @ecmwf.int ⬇️

Today @copernicusecmwf.bsky.social released the Global Climate Highlights report 2025. ECMWF Director-General Florian Pappenberger noted that "it confirms that the world is in the warmest decade on record and that the EU’s investment in Copernicus remains critical”. ➡️ www.ecmwf.int/en/about/med...

- 1 day until we release the Global Climate Highlights 2025. Get ready to explore critical data on last year's global and regional temperatures, sea ice extent and more. #CopernicusClimate #CopernicusAtmosphere #GCH2025

🌍🌐 Join us for a webinar on exploring best practices for the ethical use of AI in weather and climate predictions on 27 January. Registration is now open ➡️ ecmwf.zoom.us/webinar/regi...

This morning, we had the honour of welcoming German Minister for Transport Patrick Schnieder at our premises in Bonn. Director-General Florian Pappenberger and the Minister discussed ECMWF’s close cooperation with @dwdderwetterdienst.bsky.social and advances in AI. @bmv-bund.bsky.social

Collaboration & innovation, with people at the core, are key to ECMWF’s success, says new Director-General Florian Pappenberger. With nearly a decade leading forecasting & four years as Deputy Director-General, he has guided major scientific & technical transformation ➡️ www.ecmwf.int/en/about/med...