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CERTAINTY-ACI @certainty-aci.bsky.social · 27/08/2026

Marine gases influence the Arctic climate through aerosols and clouds Summary: certainty-aci.eu/news-marine-... Publication: agupubs.onlinelibrary.wiley.com/doi/10.1029/...

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CERTAINTY-ACI @certainty-aci.bsky.social · 25/08/2026

ORCESTRA is an international field campaign dedicated to advancing our understanding of tropical deep convection (the towering clouds and thunderstorms that transport heat, moisture & energy through the tropical atmosphere) and its role in Earth’s climate system 🔍 certainty-aci.eu/news-orcestr...

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CERTAINTY-ACI @certainty-aci.bsky.social · 27/05/2026

📢 CERTAINTY & AIRSENSE WEBINAR New aerosol and surface reflectance products from novel satellite observations and their synergies 🌍 🛰️ 🎤 Oleg Dubovik (CNRS, Université de Lille) Moderator: Anna Gialitaki (National Observatory of Athens) 🗓️ Thursday, June 18 🕐 14:00 CEST 💻 Zoom: lnkd.in/eGrqEqjp

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CERTAINTY-ACI @certainty-aci.bsky.social · 07/05/2026

A recent publication in the @tellusjournal.bsky.social by Bjorn Stevens et al. provides an overview of the ORCHESTRA field campaign 📄 tellusjournal.org/articles/10....

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CERTAINTY-ACI @certainty-aci.bsky.social · 04/05/2026

We’re looking forward to sharing our latest results at EGU 2026. Come see sessions organized by CERTAINTY & the presentations from team members at these sessions: certainty-aci.eu/egu26/

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CERTAINTY-ACI @certainty-aci.bsky.social · 18/03/2026

Two recent studies co-authored by CERTAINTY members are improving our understanding of how the polar oceans, sea ice, and the associated atmospheric particles form and behave in polar regions and influence clouds. ➡️ certainty-aci.eu/contribution...

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CERTAINTY-ACI @certainty-aci.bsky.social · 17/03/2026

Great to come together with such a fantastic team at our Annual Meeting as we reflect on our progress and set the course for Year 3 and beyond! @ilmatieteenlaitos.fi

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CERTAINTY-ACI @certainty-aci.bsky.social · 23/02/2026

[EC–ESA Aerosol Cloud Cluster Activity] ⁉️Uncertainty in how air pollution interacts with clouds is the largest source of uncertainty in near-term climate projections 🔍New policy brief explains why reducing the uncertainty is essential for effective climate policy certainty-aci.eu/policy-brief...

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CERTAINTY-ACI @certainty-aci.bsky.social · 26/11/2025

🌗☁️Aerosols have an uncertain climate impact because they interact with clouds in complex ways, especially stratocumulus. These clouds behave differently by day and night, yet a new analysis by Pugsley et al. shows that the key processes actually occur at night: certainty-aci.eu/news-the-nig...

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CERTAINTY-ACI @certainty-aci.bsky.social · 17/11/2025

🇪🇺 🌎 Building Europe’s most ambitious joint effort to address one of the main knowledge gaps in climate science by advancing fundamental understanding of cloud–aerosol interactions Last week CERTAINTY, @cleancloud-he.bsky.social & @esa.int funded projects including AIRSENSE joined forces in Lausanne

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CERTAINTY-ACI @certainty-aci.bsky.social · 23/09/2025

🛳️ 🌎 Impacts of shipping fuel regulations on global warming 👉 Read the paper: www.nature.com/articles/s43... (Jianhao Zhang, Yao-Sheng Chen, Edward Gryspeerdt, Takanobu Yamaguchi & Graham Feingold) 👉 Discover more CERTAINTY web stories: certainty-aci.eu/news/

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CERTAINTY-ACI @certainty-aci.bsky.social · 19/09/2025

A recent study by Hermant, Huusko and Mauritsen shows that the direct radiative effect of aerosols has continued to strengthen, even as emissions declined, whereas the indirect effect has weakened in line with emissions. 🔍 Read a summary here: certainty-aci.eu/news-aerosol...

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CERTAINTY-ACI @certainty-aci.bsky.social · 26/08/2025

⏰ Join us tomorrow ⏰ 📢 WEBINAR Distinguishing aerosol-cloud interactions amidst cloud variability 🗨️ @harrikokkola.bsky.social 🗓️ Wednesday, Aug 27 🕐 13:00 CEST | 📍 Zoom: epfl.zoom.us/j/6156668523... @cleancloud-he.bsky.social

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CERTAINTY-ACI @certainty-aci.bsky.social · 20/06/2025

🆕 Publication - How to trace the origins of short-lived atmospheric species: an Arctic example A recent study by Anderson Da Silva et al. validated an improved protocol to trace the origins of particles - Essential for precise climate modeling. 🔗 certainty-aci.eu/news-tracing...

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CERTAINTY-ACI @certainty-aci.bsky.social · 28/04/2025

[@egu.eu 2025] Don’t miss the chance to discover the latest insights from our researchers! Join us at EGU 2025 in Vienna to learn more about our work. ➡️ List of CERTAINTY talks: certainty-aci.eu/egu-2025/

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CERTAINTY-ACI @certainty-aci.bsky.social · 24/04/2025

[📄 New publication] 💭 Aerosol Background Concentrations Influence Aerosol-Cloud Interactions as Much as the Choice of Aerosol-Cloud Parameterization ✍️ @louismarelle.bsky.social @gunnarmy.bsky.social Jennie L. Thomas & Jean-Christophe Raut 🔗 doi.org/10.1029/2024... @agu.org

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CERTAINTY-ACI @certainty-aci.bsky.social · 08/04/2025

How far can desert dust travel? How do clouds affect Earth’s climate? ... 🌍☁️ Test your knowledge with our quiz on aerosols, clouds & climate change: certainty-aci.eu/quiz/

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CERTAINTY-ACI @certainty-aci.bsky.social · 31/03/2025

🌍 Quiz Time 🧠 How much do you know about the role of clouds and aerosols in climate change? Test your knowledge with our quiz: 🔗 certainty-aci.eu/quiz/ @horizoneu.bsky.social

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CERTAINTY-ACI @certainty-aci.bsky.social · 25/02/2025

[New publication] 📄 Transport of continental particulate over the Labrador Sea and entrainment are important pathways for glaciation of remote marine clouds ✒️ Hugh Coe et al. 🔗https://pubs.rsc.org/en/Content/ArticleLanding/2024/FD/D5FD00005J

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CERTAINTY-ACI @certainty-aci.bsky.social · 14/02/2025

💭 Fruitful Aerosol-Cloud Cluster Session today! We assessed progress, explored new synergies, and discussed future collaborations. 🙏 A big thank you to all our speakers and participants for their valuable contributions! 🔹 Stay tuned for upcoming joint activities.

- Franz Immler (European Commission)
- Thorsten Fehr (European Space Agency - ESA), EarthCare
- Michael Schulz (Norwegian Meteorological Institute | Meteorologisk institutt), AEROCOM
- Marta Luffarelli (Rayference), SATACI
- Ulas Im (Aarhus University) / Athanasios Nenes (FORTH - EPFL), CleanCloud ACI
- Oleg Dubovik (CNRS - Université de Lille) / Anton Lopatin (University of Lille), AIRSENSE
- Jennie Thomas (CNRS - IGE), CERTAINTY-ACI
- Harri Kokkola (Finnish Meteorological Institute - Ilmatieteen laitos), CERTAINTY-ACI

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CERTAINTY-ACI @certainty-aci.bsky.social · 13/02/2025

Kicking off a productive CERTAINTY meeting! We are planning for Year 2 and beyond, aligning on current progress, and strengthening collaborations with our partners and International advisory committee. Exciting coordinated modeling case studies ahead. Welcome to all new team members & ECRs!

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CERTAINTY-ACI @certainty-aci.bsky.social · 11/02/2025

Currently, our poster session is in full swing at the CERTAINTY Annual Meeting in Grenoble! It’s an exciting moment to connect and share insights with our amazing team. The energy and collaboration are truly inspiring!

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CERTAINTY-ACI @certainty-aci.bsky.social · 11/02/2025

In January, CERTAINTY researchers delivered inspiring lectures to ERCA students, covering topics like aerosols and clouds, atmospheric dynamics, weather systems, remote sensing, and statistical analysis. Welcome to the new generation of scientists!

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CERTAINTY-ACI @certainty-aci.bsky.social · 24/01/2025

🌍 Curious about the role of dust in climate & weather? Our commitment to #OpenScience? Or how tailored climate info shapes policy attitudes & perceived distance to #ClimateChange? 🔗 Explore these topics and more on our website: certainty-aci.eu/news/

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CERTAINTY-ACI @certainty-aci.bsky.social · 15/01/2025

🌐 Modeling sea spray emission from leads in the Arctic ✍️ In a recent paper, Rémy Lapere et al. produce an estimate of the location, timing and amount of sea spray emissions from leads at the scale of the Arctic Ocean for 1 year. 🔎 certainty-aci.eu/news-modelin...

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CERTAINTY-ACI @certainty-aci.bsky.social · 07/01/2025

🌧️ Understanding aerosols and clouds is key to reducing uncertainties in climate science and improving predictions of their current and future impacts. This requires advanced observational systems to provide critical constraints for climate models: certainty-aci.eu/news-observa...

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CERTAINTY-ACI @certainty-aci.bsky.social · 19/12/2024

📄 New publication 🔹Terrestrial and Marine sources of ice nucleating particles in the Eurasian Arctic ✒️ by Guangyu Li, André Welti, Arianna Rocchi, Germán Pérez Fogwill, M. Dall'Osto & Zamin A. Kanji 🔗 certainty-aci.eu/publications/

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CERTAINTY-ACI @certainty-aci.bsky.social · 19/12/2024

[New publication ] 📄 Weak liquid water path response in ship tracks ✒️ Anna Tippett, Edward Gryspeerdt, Peter Manshausen, Philip Stier and Tristan W. P. Smith 🔗 acp.copernicus.org/articles/24/...

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CERTAINTY-ACI @certainty-aci.bsky.social · 10/09/2024

Mineral dust is one of the most significant aerosols by mass in the atmosphere, influencing both climate and weather in various ways. To deepen our understanding, CERTAINTY aims to improve the representation of dust and its impacts on clouds in models. 🔗 certainty-aci.eu/the-role-of-...

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CERTAINTY-ACI @certainty-aci.bsky.social · 05/09/2024

The Certainty Project is committed to training the next generation of scientists. That's why we're proud to have our researchers integrated into the ERCA program in 2025. ➡️Apply by October 13th for your chance to be part of it: erca-school.eu

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CERTAINTY-ACI @certainty-aci.bsky.social · 03/09/2024

A new study involving over 1,000 Finns used an innovative interactive tool to assess the impact of tailored climate information on knowledge, attitudes, and psychological detachment from climate change. 🔎Discover the paper findings here: certainty-aci.eu/impact-of-ta...

https://www.nature.com/articles/s44168-024-00136-y

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CERTAINTY-ACI @certainty-aci.bsky.social · 18/04/2024

Our scientific coordinator @harrikokkola.bsky.social at EGU Aerosol-Cloud Interactions session. Do not miss the other presentations: meetingorganizer.copernicus.org/EGU24/sessio...

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CERTAINTY-ACI @certainty-aci.bsky.social · 18/04/2024

Moa K. Sporre presenting long term changes in fog frequency at Swedish airports and its potential drivers at EGU24 Join us: Clouds, Aerosol, Radiation and Precipitation interactions session, Room F2 meetingorganizer.copernicus.org/EGU24/sessio...

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CERTAINTY-ACI @certainty-aci.bsky.social · 18/04/2024

Perspectives on the desert dust contribution to ice nucleation in mixed-phase clouds and associated radiative forcing 👏Thanks to Carlos Pérez García-Pando (BSC) for this great talk yesterday at #EGU24 !

https://meetingorganizer.copernicus.org/EGU24/EGU24-16916.html

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CERTAINTY-ACI @certainty-aci.bsky.social · 15/04/2024

[EGU24] Come to session AS3.10 Clouds, Aerosol, Radiation and Precipitation interactions ➡️Orals |Thu, 18 Apr, 08:30–12:25 and 14:00–15:40 (CEST), Room F2 ➡️Posters | Fri, 19 Apr, 10:45–12:30, Hall X5 ➡️Posters virtual | Fri, 19 Apr, 14:00–15:45, Hall X5 @eurogeosciences.bsky.social

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CERTAINTY-ACI @certainty-aci.bsky.social · 01/03/2024

Great discussions and fruitful collaboration taking place between @certainty-aci.bsky.social CleanCloud & AIRSENSE, thanks to support from @ec.europa.eu CINEA, ESA & ACTRIS!

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CERTAINTY-ACI @certainty-aci.bsky.social · 29/02/2024

A huge thank you to our invited speakers for their inspiring talks and presentations 👏 🙏 @cnrs.bsky.social CINEA @ec.europa.eu ESA @eumetsat.bsky.social EarthCARE, CleanCloud, FORCeS, CRiceS, AIRSENSE, ACTRIS, CARGO-ACT, CAMEO & CONSTRAIN

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CERTAINTY-ACI @certainty-aci.bsky.social · 28/02/2024

The recent decade has seen an unprecedented acceleration in climate change & related weather extremes. Significant questions remain regarding how aerosol-cloud-radiation interactions control and modify them. CERTAINTY aims to address this challenge. ➡️ www.certainty-aci.eu

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CERTAINTY-ACI @certainty-aci.bsky.social · 28/02/2024

Warm welcome from our coordinators Jennie Thomas and Harri Kokkola at CERTAINTY kickoff meeting. Prepared to elevate our expertise in understanding cloud-aerosol processes and their links to the climate and weather!

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CERTAINTY-ACI @certainty-aci.bsky.social · 24/01/2024

Follow us for the latest project updates: ➡️ Website: www.certainty-aci.eu ➡️ X: CERTAINTY_ACI ➡️ LinkedIn: CERTAINTY-ACI ➡️ Email: info@certainty-aci.eu

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CERTAINTY-ACI @certainty-aci.bsky.social · 15/01/2024

🌍 CERTAINTY brings together 18 partners from 10 countries ➡️ A brilliant team of European experts that aims to address the urgent science need to understand the roles of clouds and aerosols in #weather and #climate! www.certainty-aci.eu

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CERTAINTY-ACI @certainty-aci.bsky.social · 08/01/2024

[CERTAINTY] New @HorizonEU Project focusing on improved understanding of Clouds and Aerosols in #Weather and #Climate has started on 1 January 2024! 🔗 Visit our website: certainty-aci.eu

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