Jeff Geddes @jeffgeddes.bsky.social People. Not a fan. Curmudgeon. Just say no to The Donald.
Dylan B. Millet @dbm.bsky.social Atmospheric chemist | 🇨🇦🇺🇸 | Distinguished McKnight University Prof @ U Minnesota
Jeffrey Geddes @jgeddes.bsky.social Associate Professor of Earth & Environment at Boston University. Air quality, atmospheric chemistry, and remote sensing. Toronto, Halifax, Boston. he/him. 🏳️🌈 🍁 🌎 https://sites.bu.edu/jged/
Kelvin Bates @kelvinb.bsky.social Atmospheric chemistry • Research scientist @ NOAA, soon-to-be assistant prof at CU Boulder MechE • he/him
BoulderCAST Weather 🏔️⛈️ @bouldercast.com We're BoulderCAST, a team of local meteorologists that forecast Boulder and Denver weather as well as nearby mountain conditions. Proudly providing timely, accurate weather intelligence to the community and our clients since 2014 🏔️❄️🌩️
Jennifer Murphy @envchemjen.bsky.social Atmospheric chemist, professor, reader, baker,
Georgios Gkatzelis (GG) @ggkatzelis.bsky.social Atmospheric scientist | Group leader in Forschungszentrum Jülich GmbH
https://www.fz-juelich.de/profile/gkatzelis_g#:~:text=Gkatzelis%20is%20a%20senior%20scientist,quality%20in%20the%20Earth's%20atmosphere.
Chris Cappa @chriscappa.bsky.social Professor, Scientist, Engineer, Human. In no particular order. Views my own, of course.
Colette Heald @coletteheald.bsky.social Canadian 🇨🇦, ETH professor🇨🇭, atmospheric chemist, researcher, educator, wanderer, and wonderer
Peter DeCarlo @petedecarlo.bsky.social Studies air indoors and out. Associate Professor at Johns Hopkins University. Air Pollution, Climate, Health. Science->Policy. 
Allen Goldstein @allenhgoldstein.bsky.social UC Berkeley Professor, atmospheric scientist
National Centre for Atmospheric Science @ncas-uk.bsky.social Unlocking the answers to climate change, high-risk weather and air pollution 🌏 We are NCAS - leading atmospheric science in a changing world.
Latest news, events, courses, jobs: https://linktr.ee/atmosphericscience
Kara D. Lamb @karadlamb.bsky.social Associate Research Scientist at Columbia University studying aerosols, cloud physics, & machine learning.
kdlamb.github.io
Jesse Kroll @jessekroll.bsky.social atmospheric chemist at MIT; also does other stuff sometimes
UCAR Center for Science Education @ucarscied.bsky.social Connecting educators, students, and the public to Earth science research conducted at NSF NCAR and UCAR.
#NSFfunded
scied.ucar.edu
@matevans.bsky.social @matevans.bsky.social 
AGU (American Geophysical Union) @agu.org Official AGU: supporting 500k+ Earth & space science advocates.
🌏 🚀 🔬
Save the Date for #AGU26 in San Francisco, CA, 7-11 December, 2026.
Jared Brewer @jaredbrewer.bsky.social Enthusiast. Atmospheric Chemistry currently at UMN. I love studying interactions between natural and human systems and how air pollution is created and destroyed. In my spare time, I’m a history nerd, a cyclist, a musician, and a foodie. 
Lindsey Anderson @lindseydanderson.bsky.social Atmospheric Chemistry Ph.D. Student at CU Boulder :)
Qing Ye @airqing.bsky.social Atmospheric chemistry
Steve Brown @stevenslbrown.bsky.social Atmospheric Scientist | Chemistry Professor | Dad | Views my own
Simone Tilmes @tilmes.bsky.social Dr. Simone Tilmes is a Project Scientist III at the National Center for Atmospheric Research (NCAR). Her interests include chemical, aerosol, and dynamical processes in chemistry-climate models, effects of climate change and climate interventions.
NSF NCAR Atmospheric Chemistry Observations & Modeling @ncar-acom.bsky.social Exploring the Impact of Chemistry on Air Quality and Climate
https://www2.acom.ucar.edu/
NSF NCAR Research Applications Laboratory @ncar-ral.bsky.social Conducting directed research & engineering to discover solutions to societal problems • Science Serving Society • ral.ucar.edu
Shima Shams, PhD @shima-shams.bsky.social Scientist |NSF NCAR | Researcher | Remote sensing | air quality | Data assimilation |science communication | stakeholder engagement |
Reader I Aspiring homesteader | Traveller | photography enthusiastic
opinions are my own!
Mike Robinson @turbomike15.bsky.social scientist at NOAA CSL, skier, climber, diyer
NASAWATCH @nasawatch.bsky.social NASAWATCH.com - Unofficial Space News Since 1996
David Keith @davidkeith.bsky.social Climate science and technology policy since 1989. Building Climate Systems Engineering at UChicago. Founded Carbon Engineering. Work interferes with my climbing.
Read about me and my work at https://davidkeith.earth/
Union of Concerned Scientists @ucs.org The Union of Concerned Scientists puts rigorous, independent science to work to solve our planet's most pressing problems.
ucs.org
Atmospheric Sciences @atmsciences.bsky.social Weather and Climate; Stratosphere, UV, AQ, methane; hydrogen; EU CAMS, ESA remote sensing etc ; employed at knmi.nl ; If we would change, climate wouldn’t need to; @MichielvanWeele.bsky.social
Marshall Shepherd @drshepherd2013.bsky.social Weather-Climate professor and scientist, Host of Weather Geeks, Forbes Senior Contributor, Alpha, 3xFSU Alum...Tweets and RTs are mine but not endorsements
Benjamin Nault @benjaminatmchm.bsky.social Atmospheric chemist, works at Johns Hopkins and Aerodyne 
Krystal Vasquez @kvasquez.bsky.social Science policy reporter @cenmag.bsky.social. Based near LA. I write a lot about science funding and diversity in STEM.
Email: k_vasquez(at)acs.org
Signal: kvasquez.12
Once upon a time, I was an atmospheric chemist.
All views and opinions are mine.
Nature @nature.com Research, news, and commentary from Nature, the international science journal. For daily science news, get Nature Briefing: https://go.nature.com/get-Nature-Briefing
@kenjucks.bsky.social @kenjucks.bsky.social 
Dan Westervelt @dwesty.bsky.social Associate professor in climate change, atmospheric chemistry, and air pollution at Columbia-Lamont @lamont.columbia.edu
Linsey Marr @linseymarr.bsky.social Engineering professor at Virginia Tech with expertise in air pollution, airborne microbes, nanotechnology. Avid recreational athlete.
Jose-Luis Jimenez @jljcolorado.bsky.social Dist. Prof. Chem. & CIRES, Univ. Colorado. #HighlyCited2022, Fellow AAAR & AGU. http://Bit.ly/TenSR http://Bit.ly/ATRVs Aerosols, pollution #EndFossilFuels #COVIDisAirborne. Views are my own
Jenny Fisher @atmosjennyf.bsky.social Atmospheric Chemistry | Tertiary Education | Science Policy | Diversity, Equity & Inclusion | Triathlon | Scuba Diving | 🇦🇺 on the lands of the Bindal & Wulgurukaba peoples. she/her. views my own.
ADVANCEGeo Partnership @advancegeo.bsky.social ADVANCEGeo Partnership: Empowering (geo)scientists to transform #WorkplaceClimate #FieldSafety #Equity #Justice #STEMToo #BystanderIntervention #ResearchEthics https://serc.carleton.edu/advancegeo
Gavin Schmidt @climateofgavin.bsky.social Climate scientist, juggler. Bikes etc. Blogging at https://www.realclimate.org - data visualization, explainers, and debunking.
Ann Marie Carlton @amgcarlton.bsky.social Professor & Vice Chair, UC Irvine Chemistry | Atmospheric Chemist | OSTP46 | Fellow of the AGU & AAAS | Part-time bike mechanic
Christine Wiedinmyer @cwiedinm.bsky.social Science administrator at CU Boulder. Study air quality and pollution emissions, all things wildfire and open burning. Women in science. Go Buffs! 
NSF NCAR & UCAR @ncar-ucar.bsky.social We're committed to advancing our understanding of Earth system science, from the ocean to the exosphere, for the betterment of our planet. 🌎 Operated by UCAR and #NSFfunded.
Tim Bertram @timothybertram.bsky.social Dad, UW Madison professor, atmospheric chemist, xcskier. Tweets are mine
Jingqiu Mao @jingqiumao.bsky.social Atmospheric chemist at University of Alaska Fairbanks.- R Róisín Commane @roseatmos.bsky.social Atmospheric chemist learning about cities after spending lots of time learning about forests and Arctic tundra
Joost de Gouw @gouwlab.bsky.social Physicist studying organic chemistry in the atmosphere using mass spectrometry. Urban air pollution, wildfire smoke, oil and gas, indoor air. Professor at the University of Colorado Boulder. Group website at sites.google.com/view/de-gouw-lab
Delphine Farmer @chemdelphine.bsky.social Environmental chemist. Professor at Colorado State University. Avid birder, very amateur photographer. I study the air we breathe (indoors and out) and how it impacts forests, climate, and health. Navigating life with the grace of a hippo on a balance beam
Gavin Edwards @gavindedwards.bsky.social Chemistry professor, Eastern Michigan University.
Katharine Hayhoe @katharinehayhoe.com climate scientist
posts 100% my own
🇨🇦 is my home
distinguished professor & chair, Texas Tech
chief scientist, The Nature Conservancy
board member, Smithsonian NMNH
advisor, Lawson Climate Inst UofT
alumna, UToronto and UIUC
author, Saving Us
Tara Kahan @tfkahan.bsky.social Atmospheric and environmental chemistry prof at University of Saskatchewan. Study ice, grime, and the great indoors. Mostly post about science, my kid, EDI, and general ridiculousness. She/her.
Gabi Pfister @gabriele-pfister.bsky.social Scientist in Boulder, CO with Austrian roots. Views expressed are my own.
Joel Thornton @atmostaj.bsky.social Professor of Atmospheric and Climate Science. I study the natural and perturbed chemistry and composition of the atmosphere and how it interacts with weather and climate. But, I like other things too. Opinions my own, etc.
Alessandro Franchin @aleairchem.bsky.social Scientists at NCAR, interested in air quality, climate, reactive nitrogen and aerosol formation.
Kimberly Prather PhD @kprather.bsky.social Atmospheric Chemistry professor, air quality, clouds-climate, health, viruses, bioaerosols, public speaker, environmental justice. ❤️ ❤️ gardening, cooking, empathy.
https://airborne.ucsd.edu
https://kprather.scrippsprofiles.ucsd.edu/
Barry Lefer @barrylefer.bsky.social 
Siyuan Wang PhD @siyuanwang.bsky.social Associate professor at Univ. of Miami. I study wildfires, chemistry in the air, how ocean affects the atmosphere. Proud nerd. Got good taste in music. Opinions my own.
https://sites.google.com/view/wangsiyuan
Lee Mauldin @drhinano.bsky.social Atmospheric Chemist, Experimentalist, Traveler
Kat Ball @katball.bsky.social chemical engineer | air quality nerd | phd candidate @ caltech | umbc alum | 🇺🇦🏳️🌈
Dongwook Kim @dongwookkim-chem.bsky.social PhD candidate at CU Boulder in Jimenez Group, woking on aircraft AMS and quantification of particulate halogens.
Aerodyne Research @aerodyne.com State-of-the-art research & mobile lab measurement services; advanced instrumentation for addressing challenges in the areas of atmosphere, soil health, emissions, geochemistry, and health, as well as tools for the emerging hydrogen economy.
aerodyne.com
Paul Wennberg @paulowennberg.bsky.social Atmospheric Scientist at Caltech. Troll to my children. Views my own.
wennberg@caltech.edu
Rebecca Hornbrook @bechornbrook.bsky.social Atmospheric chemist who occasionally travels around the world measuring trace gases to study air quality & climate. she/her
Professor X @prof-x-1971.bsky.social Scientist, spectroscopist, concerned father of 3, loving husband of 1
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