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Paul Zieger

@pzieger.bsky.social
227 followers 124 following 28 posts

Associate Professor in Atmospheric Sciences at Stockholm University, Department of Environmental Science, Sweden www.su.se/english/profiles/pzieg-1.…

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Reposted by Paul Zieger
CATCH Science @catchscience.bsky.social · 15/09/2026
📣Don't miss the next CATCH seminar by Emily Costa on "Sources of Atmospheric Particles in High-Latitude Cities: Insights from Single-Particle Measurements during ALPACA". 21 Sept, 14 UTC. Link: www.catchscience.org/seminar-series @igac-ecr.bsky.social @igacproject.bsky.social @solas-ipo.bsky.social
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Paul Zieger @pzieger.bsky.social · 12/05/2026
Happy to welcome Jessie at SU! 🥳
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Paul Zieger @pzieger.bsky.social · 08/03/2026
Great fun to be part of this! 🇯🇵🧊❄️🌦️👇🏼
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Reposted by Paul Zieger
CATCH Science @catchscience.bsky.social · 01/03/2026
Hej CATCH community!👋 Don't miss our next seminar by Jennifer Murphy @envchemjen.bsky.social (Uni Toronto) on March 18th, 15:00 UTC on "Sources and fate of atmospheric ammonia in the Arctic". Zoom link & calendar entry as usual on 👉 www.catchscience.org #CATCHscience @igac-ecr.bsky.social
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Reposted by Paul Zieger
CATCH Science @catchscience.bsky.social · 04/12/2025
📣 Next #CATCHseminar will be given by @pzieger.bsky.social & Michael Tjernström (Stockholm Uni) on "Atmospheric rivers and the onset of sea ice melt - The science behind ARTofMELT and first highlights". Date: Tues 16 Dec 2025, 14:00 UTC. Zoom link: www.catchscience.org @stockholm-uni.bsky.social
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Paul Zieger @pzieger.bsky.social · 18/11/2025
Cool, our ARTofMELT documentary about our expedition in 2023 won the "Best Science Film" Award at the Explorers Festival in Iceland! 🎉🥳👇🏼
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Surface Ocean - Lower Atmosphere Study (SOLAS) @solas-ipo.bsky.social · 08/11/2025
Paper Highlight: Heutte, B., Angot, H., Chen, G.I., et al. (2025). Sources and composition of organic aerosols in the central Arctic during spring and summer. Environ. Sci. Technol., 59 (41), 21924-21940. doi.org/10.1021/acs....
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Paul Zieger @pzieger.bsky.social · 04/11/2025
Proud to have contributed to this new book about #bioaerosols 🦠 "Biological Highways in the Sky". In chapter 7, we present a summary on the "Release of primary biological aerosol particles from surface waters". Check it out (it's open access!) 👉🏼 www.quae-open.com/product/346/...
quae-open.com
Biological Highways in the Sky - The dispersal of microorganisms, insects and other small life forms via the atmosphere - (EAN13 : 9782759241262) | Quae-Open : Des livres scientifiques en libre accès
Biological Highways in the Sky - The dispersal of microorganisms, insects and other small life forms via the atmosphere - (EAN13 : 9782759241262)
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Reposted by Paul Zieger
Science Magazine @science.org · 29/08/2025
New research demonstrates that waves breaking near shorelines release large amounts of sea spray aerosols—boosting both cloud-seeding particle numbers and airborne particulate mass. Learn more in this week’s issue of #ScienceAdvances: scim.ag/4oVFiAX
The photo shows sea spray aerosol generation along the Azores coastline.
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CATCH Science @catchscience.bsky.social · 22/08/2025
📢 Are you an ECR interested in sea ice, snow, clouds, aerosols and how things are connected? Join the Saroma Sea Ice School 2026 in Hokaido, Japan! Application deadline: 30.9. Details here 👉 sites.google.com/site/bepsiiw... @bepsiiseaice.bsky.social @igac-ecr.bsky.social @igacproject.bsky.social
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CATCH Science @catchscience.bsky.social · 05/08/2025
Don't miss the upcoming and super cool ECR online conference from IGAC and ICACGP! Sign-up until 21st of Sept. More details: www.ecr-igac-icacgp.org/2025/03/05/i...
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CATCH Science @catchscience.bsky.social · 04/08/2025
👋 This months #CATCHseminar will be given by Christina McCluskey (NCAR) on August 27th, 16:00 UTC. Don't miss it! Get the calendar entry and zoom link here: www.catchscience.org/seminar-series
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Paul Zieger @pzieger.bsky.social · 27/06/2025
Don't forget next week's #CATCHscience seminar!
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Reposted by Paul Zieger
Katharine Hayhoe @katharinehayhoe.com · 31/05/2025
NASA’s iconic Goddard Institute for Space Studies—home to Jim Hansen and hundreds more scientists, creator of the GISS model and keeper of the global temperature record—has been evicted from its longstanding NYC office above the “Seinfeld” restaurant. Why? The government told them to move out.
scientificamerican.com
Trump Administration Shutters New York City–Based NASA Institute
Since 1966 NASA’s Goddard Institute for Space Studies has been at the forefront of Earth and planetary science from its location in upper Manhattan. Now a Trump administration directive is ejecting it...
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CleanCloud Project @cleancloud-he.bsky.social · 30/05/2025
#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.
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Paul Zieger @pzieger.bsky.social · 29/05/2025
New @catchscience.bsky.social paper out in @faradaydiscussions.rsc.org highlighting some of the key open questions in cold-region atmospheric science. Check it out! 👇🐻‍❄️ @bolincentre.bsky.social
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Reposted by Paul Zieger
CATCH Science @catchscience.bsky.social · 28/05/2025
Mark your agendas for the next #CATCHseminar by Christian Pilz on vertical properties of aerosols in the Arctic: Wednesday 18th June 2025 (13:00 UTC). More info and zoom link: www.catchscience.org/seminar-series @tropos-de.bsky.social
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Reposted by Paul Zieger
CATCH Science @catchscience.bsky.social · 29/05/2025
📣Are you an ECR interested and working on topics around Atmospheric Chemistry? Then join the 2nd IGAC-iCACGP ECR 2025 online conference, which will be organized around 3 different time zones. Abstract until 10th of Aug. More details here: www.ecr-igac-icacgp.org/2025/03/05/i...
ecr-igac-icacgp.org
IGAC-iCACGP ECR 2025 online conference – ECR-IGAC-iCACGP
General Information We are happy to announce that the second edition of the IGAC-iCACGP online Early Career Researcher science-focused conference will take place this year on Thursday, September 25th,...
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Paul Zieger @pzieger.bsky.social · 27/05/2025
75th anniversary and re-launch of the legendary Tellus Journal with amazing science talks and panel discussion at the Royal Swedish Academy of Sciences. @bolincentre.bsky.social
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Paul Zieger @pzieger.bsky.social · 08/04/2025
Check out the upcoming CATCH seminar next week Thursday by Christina McCluskey! 👇
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Paul Zieger @pzieger.bsky.social · 15/03/2025
Hej Langley, I and a lot of @catchscience.bsky.social will also be at EGU! We will also screen our #ARTofMELT documentary at the EGU GeoCinema. See you there!
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Scott Dance @byscottdance.com · 14/03/2025
New: A NOAA lab in Hawaii that is connected to the longest-running observation of global greenhouse gas concentrations is slated for closure in August, according to a list of lease terminations Democratic members of Congress shared with @washingtonpost.com.
washingtonpost.com
Trump moves to close government lab that tracks planet-warming pollution
The lab is connected to the Mauna Loa Observatory, where scientists gather data to produce the Keeling Curve, a chart on the daily status of atmospheric carbon dioxide concentrations.
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Paul Zieger @pzieger.bsky.social · 21/02/2025
If you have the chance to join a @faradaydiscussions.rsc.org conference, do it! It's an excellent event, where submitted papers are discussed lively and in detail by renowned scientists. I loved it and learned a lot!
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Katharine Hayhoe @katharinehayhoe.com · 06/02/2025
By definition, numerical weather models require international data. The atmosphere knows no geopolitical boundaries: any model that begins and ends at its country’s border is unable to generate reliable predictions until after a weather system crosses its boundaries. Which defeats the purpose!
wired.com
NOAA Employees Told to Pause Work With ‘Foreign Nationals’
An internal email obtained by WIRED shows that NOAA workers received orders to pause “ALL INTERNATIONAL ENGAGEMENTS.”
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Paul Zieger @pzieger.bsky.social · 05/02/2025
Check out this month's CATCH seminar! 👇
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Paul Zieger @pzieger.bsky.social · 05/02/2025
👉Join the information event on Feb 14th, 10-12 (CET) about our *new international master program in climate environment and energy* developed within CIVIS 👉 www.su.se/department-o...
su.se
New international Master’s Programme in Climate, Environment and Energy - Department of Environmental Science
Online Info Session Master’s Programme in Transdisciplinary Studies of Climate, Environment, and Energy (TRACEE) February 14, 2025, from 10:00-12:00 CET
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Paul Zieger @pzieger.bsky.social · 27/01/2025
19 years after I attended the European Course on Atmospheres (ERCA), from which I have many good memories, I'm back in Grenoble🇫🇷 now as a teacher 👴 at the new ERCA course (now only 2 instead of 5 weeks). Very excited to be here!
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Paul Zieger @pzieger.bsky.social · 22/01/2025
Had a fantastic time at the Nordic Aerosol Symposium (NOSA2025) @au.dk and could also explore beautiful Aarhus and its amazing art. Hope to be back 2025 in Lund, Sweden!
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Paul Zieger @pzieger.bsky.social · 13/01/2025
Don't forget to submit your abstract to our session @eurogeosciences.bsky.social "on aerosols, clouds, biogeochemistry over sea ice"! The deadline is Wednesday January 15, 13:00 CET! 👇 #interdisciplinaryscience
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Paul Zieger @pzieger.bsky.social · 10/01/2025
Excellent. More than 60 of the largest German and Austrian Universities are leaving X/Twitter due to the lack "cosmopolitanism, scientific integrity, transparency and democratic discourse" on this platform. Press release (in german): idw-online.de/de/news845520 #WissXit
idw-online.de
Hochschulen und Forschungsinstitutionen verlassen Plattform X - Gemeinsam für Vielfalt, Freiheit und Wissenschaft
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Katharine Hayhoe @katharinehayhoe.com · 09/01/2025
I didn’t include YouTube in this comparison because it isn’t a text-based social media platform… but I happened to notice today that it has limited access to my video about wildfire myths and facts.
youtube.com
Things people say to me: wildfire edition
YouTube video by Talking Climate with Katharine Hayhoe
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Santiago Gassó @sangasso.bsky.social · 09/01/2025
🧪🌊 Seminar on microplastics in the ocean surface organized by SOLAS. registration www.solas-int.org/events/solas... @usocb.bsky.social @susannecraig.bsky.social @planktonteuta.bsky.social @aida-alvera.bsky.social @davidho.bsky.social
solas-int.org
SOLAS Semianr X - SOLAS INT
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Paul Zieger @pzieger.bsky.social · 09/01/2025
Excited to share our latest work just published in BAMS: "From Molecules to Droplets: The Fog and Aerosol Interaction Research Italy (FAIRARI) 2021/22 Campaign," exploring the physics & chemistry of fog & aerosols in one of Europe’s most polluted regions 👉 journals.ametsoc.org/view/journal...
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Reposted by Paul Zieger
CATCH Science @catchscience.bsky.social · 07/01/2025
Join the #CRiceS webinar on "Consequences of reduced sea ice cover in the future Arctic Ocean", next Wednesday, 15.01.2025, 13:00 - 14:00 CET. More details and registration here: cicero.oslo.no/en/events/co...
cicero.oslo.no
Consequences of reduced sea ice cover in the future Arctic Ocean
Global warming leads to rapid changes in the Arctic Ocean, such as reduced sea ice cover, shifting winds and increased freshwater. But what do we really know ab
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Paul Zieger @pzieger.bsky.social · 22/12/2024
🎬 The #ARTofMELT documentary about our expedition to study the onset of sea ice melt is out now! Many nice insights and beautiful images from last year's voyage on the icebreaker Oden. Check out the film by S. Papadopoulou & G. Zetterberg, narrated by Kevin Noone 👉 api.screen9.com/preview/7E1Z...
api.screen9.com
Festivalversion_1
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Paul Zieger @pzieger.bsky.social · 20/12/2024
Bioaerosols make it all the way up to the frozen North Pole, where they can impact clouds! 🦠🐻‍❄️☁️ Check out our new publication led by Julia Kojoj within a fantastic collaboration our H2020 project CRiceS 👉 b.tellusjournals.se/articles/10.... @Stockholm_Uni @AcesSthlmUni
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Paul Zieger @pzieger.bsky.social · 18/12/2024
Come to EGU in Vienna next spring! 🌼👇
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Paul Zieger @pzieger.bsky.social · 08/12/2024
One of the coolest benefits of working @Stockholm_Uni are the amazing and truly inspiring @NobelPrize lectures at Aula Magna. However, every time I get the feeling that I should have studied something different. Protein design is really fascinating. Wow.
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Paul Zieger @pzieger.bsky.social · 07/12/2024
In our new publication led by Julika Zinke, we used optical, fluorescence microscopy and mRNA techniques to study the emissions, enrichment and fluxes of bioaerosols🦠🌊 emitted from Baltic seawater. Check it out 👉 acp.copernicus.org/articles/24/...
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Paul Zieger @pzieger.bsky.social · 05/12/2024
Mark your calendars for the next upcoming CATCH seminar on sulfur chemistry in ice cores! Sounds cool! 👇
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Paul Zieger @pzieger.bsky.social · 30/11/2024
📢 Registration for the #eScience course is now open! Join us at beautiful @KristinebergC 🇸🇪 🇪🇺 from 5 to 15 May 2025 (+ 2 hybrid meetings). Next year's course will be part of @CleanCloud_HE with exciting new topics around aerosols, clouds and climate! 👉 www.su.se/department-o...
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Paul Zieger @pzieger.bsky.social · 27/11/2024
Great workshop last week in the French Alps! Getting ready for the next International Polar Year!
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Paul Zieger @pzieger.bsky.social · 13/05/2024
For one year, we measured bioaerosols *in situ* within clouds in the Arctic & studied their sources & potential link to mixed-phase clouds. And yes, we could directly identify them using microscopy! Check out our new paper 👉 acp.copernicus.org/articles/24/... #arctic #bioaerosols #clouds #aerosols
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Paul Zieger @pzieger.bsky.social · 13/03/2024
Update from Maïdo Observatory at La Reunion: short but strong rain events cause some impressive water streams running down the volcanic rocks towards our lab. This happens really fast. Luckily our mobile lab with instruments is placed on piles 🌦️🇷🇪🌋 @bolincentre.bsky.social
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