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An orange-themed graphic featuring a large planet-like sphere in the center, resembling Jupiter with swirling patterns of beige and brown. At the top, the text “2025” is visible. The bottom section includes several logos: the European Union flag with “Programme of the European Union,” the Copernicus logo, the Climate Change Service logo, the Atmospheric Monitoring Service logo, and the ECMWF logo. The background is a gradient of warm orange tones.

2025 was the third-warmest year on record, Copernicus data show

The Global Climate Highlights report shows that 2025 was only marginally cooler than 2023, and that the past three years (2023–2025) have averaged more than 1.5°C above the pre-industrial level.

Florian Pappenberger sat in the ECMWF Council Chamber

New Director-General puts collaboration, innovation, computing and people at the heart of ECMWF

Florian Pappenberger took up his new role as ECMWF Director-General on 1 January 2026.

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News highlights 2025

Highlights from across 2025, including the launch of AIFS, opening ECMWF’s entire Real-time Catalogue to all, global and European climate insights, digital twins and a leadership transition in ECMWF’s 50th anniversary year.

ECMWF's 50th anniversary image showing flags of participating nation states

Closing ECMWF’s 50th anniversary

ECMWF concluded its 50th anniversary year with three days of events in Reading, UK, bringing together Member States, partners and former leaders to reflect on key scientific advances, showcase European progress in machine learning, and celebrate five decades of collaboration and innovation.

David Lavers stood by books

Following the water across a changing planet

From Europe’s rivers to Pacific field campaigns, David Lavers’ work follows the movement of water through the atmosphere and oceans, improving forecasts and climate monitoring through global collaboration and targeted observations.

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ECMWF co-hosts EU Clean Air Forum

ECMWF and the Copernicus Atmosphere Monitoring Service are co-hosting the fifth Clean Air Forum in Bonn, Germany, bringing together scientists, policymakers and industry to assess progress to reduce exposure to air pollution and explore how scientific advances support Europe’s clean-air ambitions.

ECMWF's 50th anniversary image showing flags of participating nation states

Reading hosts final events marking ECMWF’s 50th anniversary

ECMWF’s year-long 50th anniversary celebrations will conclude next week (1–3 December) in Reading, UK, with a series of events and the launch of two new publications.

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ECMWF participates in high-level climate events at COP30

At COP30, ECMWF Director-General Florence Rabier highlighted how closing critical weather and climate data gaps can improve forecasts, strengthen early warnings and deliver global benefits.

Blue background with a circle on the left containing text that reads "HPCwire 2025 Readers' and Editor's choice awards". On the right yellow text reads "Winner" and below that white text that reads "Best use of AI methods for augmenting HPC application". The ECMWF logo is below this text.

European collaboration on AI for weather and climate wins HPCwire award

ECMWF and European partners have received the 2025 HPCwire award for “Best Use of AI Methods for Augmenting HPC Applications” for Anemoi, a Python-based framework for creating machine learning (ML) weather forecasting systems.

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Autumn 2025 Newsletter published

The autumn 2025 issue of the ECMWF Newsletter is now available. As well as news about ECMWF staff and events, it features articles about new developments and the use that can be made of ECMWF products.