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Clouds and climate transitioning to post-fossil aerosol regime (CleanCloud)

CleanCloud is a Horizon Europe Cluster 5 project (Grant Agreement no. 101137639)

News

The PIANO (chamber camPaign for studyIng the cloud-relevAnt properties of Natural aerosOl) experiments kick off!!!

The PIANO (chamber camPaign for studyIng the cloud-relevAnt properties of Natural aerosOl) is a series of environmental chamber campaigns taking place at the Center for Chemistry of Clouds at Aarhus University and the Center for the Study of Air quality and Climate Change at FORTH in Patras to study how freshly emitted and aged natural aerosols from hashtag#seaspray 🌊 and hashtag#dust 🌬️ can affect 🌦️ cloud formation and contribute to changes in climate and precipitation 🌨️ in a post-fossil future.

The CHOPIN campaign is over, but its impact is just beginning...

📡 As the world moves toward a post-fossil future, understanding how clouds respond to decreasing pollution is critical. Funded by the EU Horizon Europe programme, CleanCloud ACI united more than 20 top research institutions across #Europe to study how aerosol-cloud interactions (ACI) will evolve in this changing atmospheric landscape.

📈 With expertise spanning remote sensing, lab experiments, in-situ observations, and climate modeling, the goal is clear: deliver the science we need to improve predictions and guide our climate strategies.

🎬 One of CleanCloud’s cornerstone efforts was the #CHOPIN Campaign, the CleanCloud Helmos OrograPhic sIte experimeNt, held from September 2024 to June 2025 at Mt. Helmos, Greece. The CHOPIN team tackled dust storms, snow, heat, and altitude to capture invaluable data on how clouds and aerosols interact over time and terrain.

Click below to watch and learn about CHOPIN...

CleanCloud 2025 General Assembly

CleanCloud General Assembly 2025 will be held as a hybrid event in Patras, Greece, on April 2-3.

Winter is coming: CHOPIN field campaign has entered its 3rd phase

CHOPIN Website is LIVE!!!

Please click here to access the CHOPIN website.

Preparations for the CleanCloud CHOPIN field campaign is ongoing with an amazing group of 50+ people from 10+ European institutes.

Read more here...

CleanCloud Arctic summer field campaign is ongoing in collaboration with NASA ARCSIX aircraft campaign

Read more here...

CleanCloud Villum Spring Campaign Documentary

Click on the image to view the video...

Arctic spring campaigns has kicked-off at Villum Research Station

Read more here...

Our first CleanCloud Newsletter is out!

EC-ESA Aerosol-cloud interaction cluster first meeting took place in Brussels on March 1st, 2024

The first of a series of meetings organized by EC/ESA took place on March 1st, 2024, in Brussels. The meeting brought together representatives of the three projects, as well as representatives from CINEA, DG-RTD, ESA-ESRIN, and the World Meteorological Organization (WMO).

Short CleanCloud introduction video with interview with CleanCloud coordinators Ulas Im (AU) and Athanasios Nenes (FORTH/EPFL)

Postdoctoral Research Associate/Fellow at University of Exeter

Postdoc in Sea spray aerosols and cloud formation at Dept. of Chemistry, Aarhus University

CleanCloud Kickoff videos now posted on our video channel! 🌦️Hear about all the exciting research that will take place over the next 4 years.

Postdoctoral Fellow in Atmospheric Sciences at Stockholm University

NASA PACE satellite launched

On February 8 the NASA PACE (Plankton, Aerosol, Cloud, and ocean Ecosystem) satellite was successfully launchedSRON Netherlands Institute for Space Research, CleanCloud consortium member, is the Principal Investigator Institute for SPEXone.

CleanCloud Arctic spring campaign on the Greek news

CleanCloud introduced to the ESA EarthCARE community

Prof. Nenes introduced CleanCloud to the ESA EarthCARE community at the ESA-JAXA Prelaunch EarthCARE Science and Validation Workshop, which took place on 13-17 November 2023, in Frascati (Rome), Italy.

Upcoming Events

CleanCloud seminar series #15 - 30/7/2025 13-14 CET

The Role of Aerosols in the Atlantic Hurricane Drought of the 1970s and 80s.

Prof. Kerry Emanuel (MIT, USA)

CleanCloud seminar series #14 - 25/6/2025 13-14 CET

Rethinking atmospheric ice multiplication: recent lab studies on rime-splintering and droplet freeze-shattering.

Dr. Alexei Kiselev, (KIT, Germany)

CleanCloud seminar series #13 - 28/5/2025 13-14 CET

It takes two to tango: A modeler's perspective on aerosols, clouds, and their interactions 

Prof. Annica Ekman (Stockholm University, SE)

CleanCloud seminar series #12 - 26/3/2025 13-14 CET

Toward cloud-aerosol interactions in global km-scale climate models 

Prof. Philip Stier (University of Oxford, UK)

CleanCloud seminar series #11 - 26/2/2025 13-14 CET

What have we learned from the central Arctic aerosol research in the last seven years? 

Prof. Julia Schmale (EPFL, Ch)

CleanCloud seminar series #10 - 29/1/2025 13-14 CET

Potential future(s) for climate modeling and computational sciences: learning from the AI revolution.

Prof. Pierre Gentine (Columbia University, US)

CleanCloud seminar series #9 - 27/11/2024 13-14 CET

Potential future(s) for climate modeling and computational sciences: learning from the AI revolution.

Prof. Pierre Gentine (Columbia University, US)

CleanCloud seminar series #8 - 30/10/2024 13-14 CET

Emerging trends in atmospheric radar research.

Prof. Pavlos Kollias (Stony Brook University, US)

CleanCloud seminar series #7 - 25/09/2024 13-14 CET

Aerosol formation and dynamics in the high Arctic: studies at Villum Research Station.

Prof. Henrik Skov (Aarhus University, Denmark)

CleanCloud seminar series #6 - 28/08/2024 13-14 CET

Mixed-phase clouds: Insights from observations and modelling.

Prof. Ulrike Lohmann (ETH Zurich, Switzerland)

CleanCloud seminar series #5 - 31/07/2024 13-14 CET

Data-Driven Parameterization of Cloud Processes: From Deep Learning to Equation Discovery

Prof. Tom Beucler (University of Lausanne, Switzerland)

CleanCloud seminar series #4 - 26/06/2024 13-14 CET

Aerosols and Clouds over Blue and Green Oceans

Prof. Mira L. Pöhlker (Leibniz Institute for Tropospheric Research/TROPOS)

CleanCloud seminar series #3 - 29/05/2024 13-14 CET

Exploring aerosol-cloud interactions using the convection-cloud chamber

Prof. Raymond Shaw, Michigan Technical Universoty

2nd CleanCloud Synergy Session - Science-Policy-Public communication and collaboration -23/05/2024 14-17 CET

CleanCloud seminar series #2 - 24/04/2024 13-14 CET

The Arctic Monitoring and Assessment Programme (AMAP) Assessment for Short Lived Climate Forcers – A (Modelling) Overview

Ulas Im, PhD., AU-ENVS

CleanCloud seminar series #1 - 27/03/2024 13-14 CET

Aerosol-Cloud Interactions in warm and mixed-phase orographic clouds in the East Mediterranean

Prof. Athanasios Nenes, FORTH/EPFL