Paul Zieger
@pzieger.bsky.social
Associate Professor in Atmospheric Sciences at Stockholm University, Department of Environmental Science, Sweden
https://www.su.se/english/profiles/pzieg-1.193108
https://www.su.se/english/profiles/pzieg-1.193108
Reposted by Paul Zieger
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....
November 8, 2025 at 8:43 AM
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....
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/...
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)
www.quae-open.com
November 4, 2025 at 7:34 PM
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/...
Reposted by Paul Zieger
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: https://scim.ag/4oVFiAX
Learn more in this week’s issue of #ScienceAdvances: https://scim.ag/4oVFiAX
August 29, 2025 at 8:30 PM
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: https://scim.ag/4oVFiAX
Learn more in this week’s issue of #ScienceAdvances: https://scim.ag/4oVFiAX
Reposted by Paul Zieger
📢 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
August 22, 2025 at 9:22 AM
📢 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
Reposted by Paul Zieger
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...
August 5, 2025 at 8:04 AM
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...
Reposted by Paul Zieger
👋 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
August 4, 2025 at 5:29 PM
👋 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
Don't forget next week's #CATCHscience seminar!
📣 Check out our next CATCH seminar on "Atmosphere-snowpack mercury exchange" by Sae Yun Kwon (POSTECH). 3 July (Thur) at 13:00 UTC! Link: www.catchscience.org/seminar-series #CATCHscience @igac-ecr.bsky.social @igacproject.bsky.social @solas-ipo.bsky.social @bepsiiseaice.bsky.social
June 27, 2025 at 3:46 PM
Don't forget next week's #CATCHscience seminar!
Reposted by Paul Zieger
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.
Why? The government told them to move out.
May 31, 2025 at 2:55 PM
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.
Why? The government told them to move out.
Reposted by Paul Zieger
#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.
May 30, 2025 at 9:02 AM
#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.
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
🎉 New CATCH publication by @thorbarra.bsky.social et al. This work highlights key open questions in cold-region atmospheric chemistry - from polar sulphur emissions to wintertime haze. Check it out here 👉 pubs.rsc.org/en/content/a...
@igacproject.bsky.social @thorbarra.bsky.social
@igacproject.bsky.social @thorbarra.bsky.social
May 29, 2025 at 5:39 PM
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
Reposted by Paul Zieger
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
May 28, 2025 at 6:19 AM
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
Reposted by Paul Zieger
📣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...
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,...
www.ecr-igac-icacgp.org
May 29, 2025 at 1:38 PM
📣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...
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
May 27, 2025 at 11:49 AM
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
Check out the upcoming CATCH seminar next week Thursday by Christina McCluskey! 👇
📣 Hej all, don't miss the upcoming CATCH seminar by Christina McCluskey (NCAR, US) on "Ice, Ice, Maybe? Aerosol-cloud interactions over the Southern Ocean Region" on April 17th (Thu) at 16:00 UTC. Zoom link will be here www.catchscience.org/seminar-series #CATCHscience #CATCHseminar #INPsAreCool 🌍🌨️❄️
April 8, 2025 at 5:11 PM
Check out the upcoming CATCH seminar next week Thursday by Christina McCluskey! 👇
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!
For the first time, I'm heading to EGU this year (and after, the WCRP meeting). Will anyone else be there that wants to talk IGAC? We should connect if so!
March 15, 2025 at 9:36 PM
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!
Reposted by Paul Zieger
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.
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.
www.washingtonpost.com
March 14, 2025 at 6:23 PM
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.
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!
Day 2 of @faradaydiscussions.rsc.org on *Atmospheric Chemistry in Cold Environments* in full swing. Cool concept: Fresh & new publications are intensively discussed & comments/questions of the expert audience are published together with the final publication. #CATCHscience
February 21, 2025 at 7:13 AM
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!
Reposted by Paul Zieger
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!
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.”
www.wired.com
February 6, 2025 at 3:23 PM
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!
Check out this month's CATCH seminar! 👇
📣 Please mark the date and time for the next CATCH seminar given by Alli Moon (University of Washington) on February 2025 (Wednesday) at 18:00 UTC / 10:00 PST. Zoom link will follow here: www.catchscience.org/seminar-series #CATCHscience
February 5, 2025 at 11:46 AM
Check out this month's CATCH seminar! 👇
👉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...
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
www.su.se
February 5, 2025 at 10:07 AM
👉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...
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!
January 27, 2025 at 7:57 PM
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!
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!
January 22, 2025 at 9:32 PM
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!
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
Join our interdisciplinary session @eurogeosciences.bsky.social on aerosols, clouds, biogeochemistry over polar sea ice and oceans! Abstract submission until 15 Jan. More details here: meetingorganizer.copernicus.org/EGU25/sessio...
January 13, 2025 at 8:15 PM
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
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
Hochschulen und Forschungsinstitutionen verlassen Plattform X - Gemeinsam für Vielfalt, Freiheit und Wissenschaft
idw-online.de
January 10, 2025 at 12:31 PM
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
Reposted by Paul Zieger
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.
January 9, 2025 at 1:17 AM
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.