To tackle climate change effectively, we need solid science, reliable data, and a deep understanding of the forces behind climate change. ICOS delivers standardised, high-quality, long-term greenhouse gas measurements to explore the complexities of the carbon cycle. Learn more⬇️

We are pleased to announce the sessions for ICOS Science Conference 2026! ✨ A record number of sessions were proposed by the ICOS community, read more: https://t.co/6X6LS5IiMW Abstract submission opens in January. #ICOS2026SC

Season’s Greetings from all of us at ICOS ✨ As the year comes to a close, we’d like to take a moment to thank our community for your trust, collaboration, and continued support throughout the year. Wishing you a peaceful holiday season and a bright start to the year ahead!

Valencia shows why #climatechange is no longer abstract for cities. Record 44.5°C heat, droughts, and floods have become part of recent reality. At the same time, the city has been working on climate mitigation and is stepping up its adaptation efforts. https://t.co/y2Q8P9IKHX

Submit an abstract to one of the EGU26 sessions that are organised by the ICOS community and project partners. Deadline is Thursday, 15 January 2026, 13:00 CET Learn more about ICOS Sessions: https://t.co/coAYLTXhGp #EGU26

The last ICOS Newsletter of 2025 is out! In this edition we looked back at #ICOS10, saw two more stations receive the ICOS label, and granted the first Ingeborg Levin Early Career Scientist Award. Read the newsletter here: https://t.co/6HwiwPbs6W

ICOS participates in the global efforts to build redundancy in global carbon measurement networks with its scientific expertise and 38 Atmosphere measurement stations. In November 25, the median CO2 in Europe was 435.38 ppm. https://t.co/QWKRDuzmeE

As part of the #ICOSCities project, Zurich now has 60 atmospheric sensors measuring real-time CO₂ levels across the city. For the first time, authorities can compare live atmospheric data with the traditional emissions inventory. 👉 Read more in FLUXES: https://t.co/lxesCC0bRY

New #ExploreICOS video out from the ICOS Ecosystem station Clara Raised Bog in Ireland! 🌱 As a newly labelled station within #ICOS Ireland, Clara Raised Bog helps researchers understand how peatlands respond to climatic extremes. ➡️ Watch the video: https://t.co/nFCL1R5C8g

🌍 Zurich’s low-cost CO₂ sensors on lampposts, rooftops and antenna masts create a dense urban greenhouse gas monitoring network that reveals when and where emissions happen – helping cities spot hotspots and guide climate action. Read more in FLUXES: https://t.co/5DJHHcNqWs

The ICOS ERIC 10-year anniversary was celebrated last week in Helsinki. The week brought together ICOS scientists, funders and invited guests. Thank you everyone for the successful ICOS 10-year anniversary week! 🎉 👉 See event highlights and pictures: https://t.co/zlHxLz4QeL

VLIZ recruits: a Surface Ocean CO2 Atlas (SOCAT) Data Engineer. Are you passionate about leveraging data to advance marine sciences and contribute to EU and global initiatives such as @ICOS_RI and #SOCAT? Join us at the VLIZ Marine Data Centre. Apply no later than 4 January

After completing ICOS’ thorough standardisation and quality assurance process, two ICOS stations — Capodimonte Ecosystem station in Italy and El Arenosillo Atmosphere station in Spain — have now received the status of ICOS labelled stations. Congratulations!

ICOS is pleased to announce that Dr Anna Virkkala is the first recipient of the Ingeborg Levin Early Career Scientist Award🎖️ Her research focuses on terrestrial carbon cycling, climate change, and Arctic ecosystems. Read the story: https://t.co/UoXwhaxIdN

New #ExploreICOS video out from the ICOS Atmosphere station Mace Head! This station on the west coast of Ireland is one of the world’s few stations with unobstructed access to clean, well-mixed Atlantic air. 🌎 @uniofgalway @EPAIreland Watch the video: https://t.co/92L7u4argD

One final big thank you to everyone who joined the ICOS 10-year anniversary celebrations this week in Helsinki, Finland! 🥳 The week of scientific talks and celebrations was a real success, and we are excited to start the next decade of ICOS with every one of you! 🌟 #ICOS10

Hannele Laine presents a view of the next decade of ICOS at the #ICOS10-year Anniversary Seminar. What is needed? 🔹Strong station network 🔹Ability to adapt to new scientific advances 🔹Continued engagement in global initiatives 🔹Impactful climate services for policymakers

The ICOS 10-Year Anniversary Seminar is underway! ICOS Director General Werner Kutsch delivers today’s first keynote, charting the journey of ICOS and how it and its community now form a part of the value chain from observations to climate action. #ICOS10

Day 2 of the #ICOS10 week kicked off with the Super MSA – the first cross-domain meeting of ICOS Atmosphere, Ecosystem and Ocean MSAs. A huge thank you to the presenters and participants for the discussions, and to the MSAs and chairs for organising a great programme.

Great discussions continue here at #ICOS10! PIs from the ICOS domains discussed ‘a day in the life of an ICOS PI’ ☁️🌲🌊 Their work is done in pursuit of excellent science, a core priority of ICOS’s stakeholders as raised in the ‘Science and its Stakeholders’ panel discussion.

The ICOS 10-year anniversary week is in full swing! A packed hall here at @helsinkiuni, as ICOS Director General Werner Kutsch and representatives from the ICOS Central Facilities open this morning's Information Day programme. #ICOS10