CERTAINTY-ACI
@certainty-aci.bsky.social
CERTAINTY is a research project. It aims to deliver the knowledge and models that provide improved confidence and representation of the role of cloud–aerosol-radiation interactions in climate and weather.
Funded by Horizon Europe.
Funded by Horizon Europe.
🇪🇺 🌎 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
Last week CERTAINTY, @cleancloud-he.bsky.social & @esa.int funded projects including AIRSENSE joined forces in Lausanne
November 17, 2025 at 9:55 AM
🇪🇺 🌎 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
Last week CERTAINTY, @cleancloud-he.bsky.social & @esa.int funded projects including AIRSENSE joined forces in Lausanne
🛳️ 🌎 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/
👉 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/
September 23, 2025 at 7:43 AM
🛳️ 🌎 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/
👉 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/
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...
🔍 Read a summary here: certainty-aci.eu/news-aerosol...
September 19, 2025 at 7:09 AM
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...
🔍 Read a summary here: certainty-aci.eu/news-aerosol...
⏰ 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
📢 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
August 26, 2025 at 8:54 AM
⏰ 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
📢 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
🆕 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...
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...
June 20, 2025 at 8:34 AM
🆕 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...
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...
[@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/
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/
April 28, 2025 at 7:20 AM
[@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/
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/
[📄 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
💭 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
April 24, 2025 at 8:06 AM
[📄 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
💭 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
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/
How do clouds affect Earth’s climate?
...
🌍☁️ Test your knowledge with our quiz on aerosols, clouds & climate change: certainty-aci.eu/quiz/
April 8, 2025 at 10:02 AM
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/
How do clouds affect Earth’s climate?
...
🌍☁️ Test your knowledge with our quiz on aerosols, clouds & climate change: certainty-aci.eu/quiz/
🌍 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
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
March 31, 2025 at 7:28 AM
🌍 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
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
[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
📄 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
February 25, 2025 at 10:56 AM
[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
📄 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
💭 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.
🙏 A big thank you to all our speakers and participants for their valuable contributions!
🔹 Stay tuned for upcoming joint activities.
February 14, 2025 at 8:41 AM
💭 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.
🙏 A big thank you to all our speakers and participants for their valuable contributions!
🔹 Stay tuned for upcoming joint activities.
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!
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!
February 13, 2025 at 9:35 AM
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!
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!
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!
It’s an exciting moment to connect and share insights with our amazing team. The energy and collaboration are truly inspiring!
February 11, 2025 at 5:02 PM
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!
It’s an exciting moment to connect and share insights with our amazing team. The energy and collaboration are truly inspiring!
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!
Welcome to the new generation of scientists!
February 11, 2025 at 2:34 PM
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!
Welcome to the new generation of scientists!
🌍 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/
🔗 Explore these topics and more on our website: certainty-aci.eu/news/
January 24, 2025 at 1:35 PM
🌍 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/
🔗 Explore these topics and more on our website: certainty-aci.eu/news/
🌐 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...
✍️ 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...
January 15, 2025 at 9:10 AM
🌐 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...
✍️ 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...
🌧️ 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...
This requires advanced observational systems to provide critical constraints for climate models: certainty-aci.eu/news-observa...
January 7, 2025 at 12:45 PM
🌧️ 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...
This requires advanced observational systems to provide critical constraints for climate models: certainty-aci.eu/news-observa...
📄 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/
🔹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/
December 19, 2024 at 9:38 AM
📄 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/
🔹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/
[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/...
📄 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/...
December 19, 2024 at 9:34 AM
[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/...
📄 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/...
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-...
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-...
September 10, 2024 at 12:33 PM
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-...
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-...
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
➡️Apply by October 13th for your chance to be part of it: erca-school.eu
September 5, 2024 at 8:57 AM
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
➡️Apply by October 13th for your chance to be part of it: erca-school.eu
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...
🔎Discover the paper findings here: certainty-aci.eu/impact-of-ta...
September 3, 2024 at 1:41 PM
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...
🔎Discover the paper findings here: certainty-aci.eu/impact-of-ta...
Our scientific coordinator @harrikokkola.bsky.social at EGU Aerosol-Cloud Interactions session.
Do not miss the other presentations: meetingorganizer.copernicus.org/EGU24/sessio...
Do not miss the other presentations: meetingorganizer.copernicus.org/EGU24/sessio...
April 18, 2024 at 1:13 PM
Our scientific coordinator @harrikokkola.bsky.social at EGU Aerosol-Cloud Interactions session.
Do not miss the other presentations: meetingorganizer.copernicus.org/EGU24/sessio...
Do not miss the other presentations: meetingorganizer.copernicus.org/EGU24/sessio...
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...
Join us: Clouds, Aerosol, Radiation and Precipitation interactions session, Room F2 meetingorganizer.copernicus.org/EGU24/sessio...
April 18, 2024 at 9:50 AM
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...
Join us: Clouds, Aerosol, Radiation and Precipitation interactions session, Room F2 meetingorganizer.copernicus.org/EGU24/sessio...
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 !
👏Thanks to Carlos Pérez García-Pando (BSC) for this great talk yesterday at #EGU24 !
April 18, 2024 at 7:30 AM
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 !
👏Thanks to Carlos Pérez García-Pando (BSC) for this great talk yesterday at #EGU24 !