[Continuing collaboration with @cleancloud-he.bsky.social] ❄️ Efficient ice multiplication from freezing raindrop fragmentation 🖊️ Nils Pfeifer, Bernd Mom, Dmitri Moisseev, Susan Hartmann, Julian Meusel, Corinna Hoose & Maximilian Maahn 🔎 Read the publication: www.nature.com/articles/s43...

📢 Don’t forget tomorrow’s seminar at 13:00 CET by our excellent early-career scientists!

Don’t miss two exciting talks from our ECS: Dr. Olga Zografou and Dr. Baseerat Romshoo. They will share new results on #aerosol-#clouds interactions from in-situ observations at (HAC)2 and ATTO. 🌍☁️ 📆 Wednesday 26 Nov at 1pm (CET) on Zoom! epfl.zoom.us/j/6156668523...

📢 Don’t forget today’s seminar at 13:00 CET by Prof. Trude Storelvmo

📢 Our next seminar is coming up! 🗓️Join us next Wednesday at 13:00 CET on zoom

Don’t miss Prof. Trude Storelvmo’s talk on Arctic mixed-phase #clouds, connecting insights from small-scale processses to large-scale #climate impacts. 🌍☁️ 📆 Wednesday 29 Oct at 1pm (CET) on Zoom! epfl.zoom.us/j/6156668523...

📢 Don’t forget tomorrow’s seminar at 13:00 CET by Dr. Bastiaan van Diedenhoven

Join Dr. Bastiaan van Diedenhoven to explore how advanced polarimetric cloud retrievals shed new light on #aerosol - #cloud interactions 🛰️🌍☁️ 📆 Wednesday 24 Sep at 1pm (CET) on Zoom! epfl.zoom.us/j/6156668523...

📢 Don’t forget tomorrow’s seminar at 13:00 CET with Prof. Harri Kokkola.

📢 Our next seminar is coming up! 🗓️Join us next Wednesday at 13:00 CET on zoom!

Join Prof. Harri Kokkola to explore disentangling #aerosol–#cloud interactions from cloud variability. 🌍☁️ 📆 Wednesday 27 Aug at 1pm (CET) on Zoom! epfl.zoom.us/j/6156668523...

Flying rivers offer a great introduction to science. 325 meters above the rainforest, Mira Pöhlker explains the formation of aerosols and clouds – and what it really means to have flying rivers, in the popular movie Checker Tobi and the journey to the flying rivers. Our www.imdb.com/title/tt2853...

Don’t forget to join us tomorrow at 13:00 CET for the exciting seminar by Prof. Kerry Emanuel.

📢 Our next seminar is coming up! 🗓️Join us next Wednesday at 13:00 CET on zoom!

#Aerosols and #hurricane - what’s the link? Join Prof. Kerry Emanuel for insights into the Atlantic hurricane drought of the 1970s–80s. 📆 Wednesday 30 July at 1pm (CET) on Zoom! epfl.zoom.us/j/6156668523...

Don’t forget to join us tomorrow at 13:00 CET for the exciting seminar by Dr. Alexei Kiselev. See you there!

Our favourite topic! Meet CleanCloud's Dr. Mira Pöhlker in this great film "The mysterious world of clouds", now nominated for best Scientific film at #GreenScreen international wildlife filmfestival #Meetourscientists www.arte.tv/fr/videos/11...

📢 Our next seminar is coming up! 🗓️Join us next Wednesday at 13:00 CET on zoom!

Interested in #ice microphysics in #clouds? Join our next seminar with Dr. Alexei Kiselev 📆 Wednesday 25 June at 1pm (CET) on Zoom and find out! epfl.zoom.us/j/6156668523... #ice_multiplication

#MeetOurScientists: The observations Dr Kostas Eleftheriadis and the rest of the CleanCloud-team make from Mt Helmos, are important to monitor long term developments and to decide on effective measures to tackle the #climatecrisis

The Weather and Climate Livestream just passed the 50 HOUR mark! Thank you to all of our viewers, speakers, hosts, and organizers! We will be streaming live, on Youtube, until the official start of hurricane season this Sunday, June 1st. 50 more hours to go! wclivestream.com/watch/

#MeetOurScientists: With the help of a cloud sampler, Aiden Jönsson is able to investigate the particles inside the clouds. Important to better understand aerosols and their interactions with clouds - and how future climate and weather will impact our lives.

📢 Reminder: Don’t forget to join us tomorrow at 13:00 CET for the exciting talk by Prof. Annica Ekman.

#MeetOurScientists: How can CleanCloud and other Horizon Europe projects make a difference? Through new measurements, improved models and less uncertainty for future climate predictions. Meet Daniel Partridge of @universityofexeter.bsky.social @horizoneu.bsky.social

📢 Our next seminar is coming up! 🗓️Join us next Wednesday at 13:00 CET on zoom!

😆We are happy to admit that not everything goes as planned - always, all the time... Here comes a selection of our bloopers from the #chopin campaign on MtHelmos. Enjoy! mediaspace.epfl.ch/media/What+i...

🎉The spectacular “Fog chaser” by CleanCloud’s Lionel Favre, taken on top of Mt Helmos, is among the winners of both Nature’s 2025 #ScientistAtWork photo competition and @snsf.ch Scientific Image Competition. Big congratulations! www.snf.ch/en/8qDTRiwkq...

Interested in how #aerosols, #clouds and their interactions are represented in state-of-the-art #models? Join our next seminar with Prof. Annica Ekman 📆 Wednesday 28 May at 1pm (CET) on Zoom and find out! epfl.zoom.us/j/6156668523...

Knowledge of aerosol-cloud interactions is key to project how climate will change in the future. Meet our scientists: This is Marianne Tronstad Lund @mtlund.bsky.social from CICERO, Norway.

Meet our scientists! CleanCloud is a great team of researchers from 20 institutions in 12 European countries. Learn more about our work, here is @philipstier.bsky.social

An exciting week! Big thanks to all CleanCloud participants for their hard work during @egu.eu2025! 25 presentations, 10 different sessions plus 2 videos at GeoCinema... We congratulate again prof Ulrike Lohmann with #VilhelmBjerknes Medal for her pioneering work in aerosol-cloud interactions 🏅

It's finally Monday and we hope to see you at @egu.eu this week! Here is the list of CleanCloud contributions: www.linkedin.com/posts/cleanc...

What a a team this is! In CleanCloud @ec.europa.eu we have accomplished things we did not even think possible, and we are well on track to contribute to improved climate models. Project leaders Athanasios Nenes and @ulasim77.bsky.social sum up the first year:

Great to meet the consortium on top of #MtHelmos and in #Patras for our annual meeting and sum up the amazing work that has been done this 1st year of CleanCloud! @ulasim77.bsky.social

📢 Reminder: Don’t forget to join us tomorrow at 13:00 CET for the exciting talk by Prof. Philip Stier. See you there!

Important climate questions relate to #clouds. In CleanCloud we investigate clouds even in the most remote places, like #Villum in #Greenland. The #Arctic is warming 4 times faster than the average and rapid ice melting has impact on clouds.

Interested in cloud-aerosol interactions in global km-scale climate models? Join our next seminar with Prof. Philip Stier @philipstier.bsky.social 📆 Wednesday 26 March at 1pm (CET) on Zoom and find out! epfl.zoom.us/j/6156668523...

In our #chopin campaign at #mthelmos we sample particles from all over the world; pollution, dust, sea salt, forests and more to see the impact they have on #clouds.

What have we learned from central Arctic #aerosol research in the last 7 years? Join our next seminar with Prof. Julia Schmale 📆 Wednesday 26 Feb at 1pm (CET) on Zoom and find out! epfl.zoom.us/j/6156668523...

Understanding the atmosphere is both scientifically challenging and relevant for society, says Ulrike Lohmann winner of @EGU Vilhelm Bjerknes Medal 2025 and part of our CleanCloud team 👏 #UNday #Women&GirlsInScience is a reminder that female participation in science should be strengthened.

📣Make sure you don't miss the first glimpse of #aerosol and #cloud from the NASA #PACE (Plankton, Aerosol, Clouds, ocean Ecosystem) mission! Join our CleanCloud webinar with Dr. Otto Hasekamp 📆 Jan 29 🕐13:00 CET on Zoom: epfl.zoom.us/j/6156668523... Mark your calendar! 📌

What's inside the #clouds ☁️ and what answers do we find from the top of #MtHelmos 🏔️about the #climate and the world around us? Thanks to Nikitas Diamantopoulos for this great documentary about our CHOPIN campaign: mediaspace.epfl.ch/media/CleanC...

Trace gases in the #atmosphere from the Mediterranean Sea, effects on #clouds from ship #emissions, the nature of #aerosol sources in the #Arctic and ice multiplication in clouds: What a year it has been🤩Check out our publications from 2024: projects.au.dk/cleancloud/p...

📣This session at #EGU25 will bring together researchers in the areas of high-latitude #meteorology, #atmospheric chemistry, #air quality, #biogeochemistry, boundary layer physics, #cloud microphysics, surface radiative processes, #oceanography, #seaice and #climate. Submissions welcome by Jan 15!

📣Contributions welcome to this exciting session at #EGU25! Anthropogenic and natural aerosols in regional climate change: From physical hazards to climate risk and impacts on nature and society. ⏱️Don't miss the deadline 15 Jan @ljwilcox.bsky.social meetingorganizer.copernicus.org/EGU25/sessio...

We are at a critical point in the #climatecrisis driven by #fossilfuels. Our project leader Athanasios Nenes is among the 250 experts at the @IPCC #AR7 scoping meeting now, an important step in shaping the contents of the next report assessing the #science related to #climatechange.

Winter is here ☃️ Our work on #MtHelmos 🏔️ just entered its 3rd phase! Tranisitioning to winter the site is under snow ❄️ and all times inside clouds 🌨️. Follow the #CleanCloud CHOPIN campaign projects.au.dk/cleancloud/c...

#Aerosols #clouds and #climate: Check out our #eScience course in Sweden next year, aimed at PhD students in #atmospheric and #biospheric sciences (also advanced MSc students are welcome to apply). Registration is now open 👇

Interested in #climatescience #clouds, #aerosols and future #climateimpacts? Welcome to our monthly webinars presenting new research and insightful discussions. This week about how #AI techniques can be applied in #climatescience. Recordings available here: mediaspace.epfl.ch/channel/Clea...

An important part of #CleanCloud is to monitor what happens inside the clouds 🌧️ Project leader Athanasios Nenes gives latest news from our current expedition on #MtHelmos with 55 scientists and 13 institutions. Great interview with ERTNews' show "Update". www.ertnews.gr/eidiseis/mon...