James Rae @mudwaterclimate.bsky.social Climate scientist and geochemist
@UnivofStAndrews
| CO2 & ocean circulation past & present | Social & Environmental justice
Climate.us @climate.us We are an independent, nonprofit successor to Climate(.)gov, safeguarding public access to trusted climate data, tools, and information.
Donate: https://www.climate.us/donate
Bart Verheggen @bverheggen.bsky.social Climate Change & Science Communication
Science-Policy Interface
Klimaatverandering & Wetenschapscommunicatie
Auteur 'Wat iedereen zou moeten weten over klimaatverandering'
Climate Science Advisor (KNMI) & Lecturer (AUC)
Posting in English and Dutch
deanrovang.bsky.social @deanrovang.bsky.social Retired research engineer from Sandia National Laboratories. Interested in climate change, the energy transition, and science — with a focus on progress and curiosity.
Substack: https://justdean.substack.com
Stephen Kane @exocytherean.bsky.social Planetary Astrophysicist at the University of California, Riverside. I like Venus. A lot. Exoplanets are also kinda cool.
Robert Rohde @rarohde.bsky.social Chief Scientist for @berkeleyearth.org.
Physics PhD & data nerd. Usually focused on climate change, fossil fuels, & air quality issues.
John Mashey @johnmashey.bsky.social Semi-retired computer scientist, ancient UNIXer, "Big Data"
https://en.wikipedia.org/wiki/John_Mashey
Last 20 yrs: chasing anti-science disinfo, esp. on climate or tobacco, helping defend scientists.
Supporter of UCSF, CSLDF, NCSE, CSI, member AAAS, AGU.
Dr. Jonathan Foley @globalecoguy.bsky.social - Executive Director, Project Drawdown drawdown.org
- Climate scientist, working on solutions
- Passionate about science, communication, and hope
- Minnesota based, Maine born
- Personal account / My views
Dave Weasel @daveweasel.bsky.social Comedian, podcaster, etc. 5x billboard comedy chart topper
Robert Way @labradorice.bsky.social Labrador Kallunângajuk from Vâli. Dad. Hunter. Geography prof. Canada Research Chair in Northern Environmental Change.
@queensu. Views are my own.
Neil Tangri @tangri0.bsky.social Climate scientist working for climate justice. Sailor on the side.
Topics: plastics, waste, climate, and just transition. At GAIA and UC Berkeley.
Opinions my own etc. Blog: https://tangri.science/blog
Jessica McKenzie @jessimckenzi.bsky.social reporting, writing, editing climate change stories @thebulletin.org // outdoorsy newsletter: jessicastarmckenzie.com/newsletter // tips: jmckenzie@thebulletin.org, jsmckenzie@protonmail.com, or jessimckenzi.01 on signal
Dr. Helen Kopnina @helenkopnina.bsky.social #Sustainability scholar @northumbriauni.bsky.social #EnvironmentalEducation #SustainableBusiness #Biodiversity #Animals #Climate Wary of polarization, viral slogans & echo chambers https://scholar.google.nl/citations?user=pE0rWdgAAAAJ&hl=nl
Nick Major-Bowden @nickmajorbowden.bsky.social Currently Designing: Look Into My Eyes 👀
.5 of The Nervous Department
Helen Czerski @helenczerski.bsky.social Physics, bubbles, oceans, hot chocolate and curiosity. Professor at UCL, writer, broadcaster. Author of Storm in a Teacup and Blue Machine https://linktr.ee/helenczerski Co-host of BBC Radio 4's Rare Earth
Nick Lutsko @nick-lutsko.bsky.social Associate Professor of Climate Science at Scripps Institution of Oceanography/UCSD.
More at: https://www.sio-climatephysics.com/ and https://notesonclimate.substack.com/
Peter Thorne @peterthorne.bsky.social Climate scientist, director ICARUS Climate Research Centre, Maynooth University, Ireland, author IPCC AR6, member Ireland's climate change advisory council, Chair GCOS AOPC. www.peter-thorne.net
Nathalie Goodkin @margelab.bsky.social Curator, Geochemist, Paleoclimate
Oceans | Climate | Corals | Shells 
Peter Brannen @peterbrannen.bsky.social Mammal.
New📘The Story of CO2 is the Story of Everything
LA Times Book Prize Finalist. "Hugely compelling" -NYTimes "History on a heroic scale" -Times (UK) "Brilliant and epic" -Kate Marvel
Old📘 The Ends of the World
Peterbrannen.com
Marc Jones @marcehjones.bsky.social Curator, fossil reptiles and amphibians, at Natural History Museum London UK. Honorary positions at UCL and University of Adelaide. #tuatara 🦎 #Cymraeg He/Him
Orcid: 0000-0002-0146-9623
Prof. Sonia I Seneviratne @soniaseneviratne.bsky.social Professor at ETH Zurich, IPCC WGI Vice-chair.
#Climate #Extremes #Land.
Citizen/mum/scientist. Personal account.
https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter11.pdf
Twitter/X: @SISeneviratne
https://www.iac.ethz.ch/people/sonia
Graeme MacGilchrist @gmacgilchrist.bsky.social Oceanographer and climate scientist. Senior research fellow at U. of St Andrews.
Tess Wei-Ping Jacobson @tessweiping.bsky.social postdoc @ NASA working on hydroclimate and drought 🌬️ previously @ columbia & princeton ❤ she/they
Tessa Hill @tessahill.bsky.social Climate change, oceans, blue carbon and coastal communities. Professor, researcher, educator, author. 🌊
📕: At Every Depth @ateverydepth.bsky.social
AtEveryDepth.com
bio.site/Tessahill
Dr Theodosios Chatzistergos @damagedonegr.bsky.social Researcher at Max Planck institute for solar system research.
Studying solar activity and variability.
I am not on x (twitter), my account there is deleted.
https://scholar.google.com/citations?user=8gnK6BsAAAAJ&hl=en
Anthony Leboissetier @nyctony.bsky.social 
Andy Ackerman @ack3000.bsky.social keep your eye on the donut not the hole
backstory https://scholar.google.com/citations?hl=en&user=MbweuSIAAAAJ&pagesize=50&is_public_preview=1
miriam nielsen @zentouro.info urban worm farmer. ricocheting between bored and furious. currently furious. climate scientist.
i talk about climate change a lot. she/her 🏳️🌈
videos @ https://youtube.com/zentouro
R. Saravanan @sarava.net Climate scientist, Professor at Texas A&M University.
Book: ClimateDemon.com, https://Metamodel.blog, https://github.com/mitotic, More: https://r.saravanan.us
Check out my curating Bluesky client https://Skylimit.dev: 2.7, #climate, #skylimit,
Katie Mack @astrokatie.com Cosmologist, pilot, author, connoisseur of cosmic catastrophes. TEDFellow, CIFAR Azrieli Global Scholar. Domain verified through my personal astrokatie.com website. She/her. Dr.
Personal account; not speaking for employer or anyone else.
Thomas Boettcher @thomas-boettcher.bsky.social collecting #PlanetaryBoundaries data.
#climate is a feedback structure.
#biodiversity #PFAS
engineer applied physics
318ppm=677GtC
600+300GtC
https://www.facebook.com/profile.php?id=100014586580860
https://www.youtube.com/@gautingmusik9561
Kate Mackenzie @katemac.bsky.social finance, energy, climate, geopolitics, industrial policy
@thepolycrisis.bsky.social
in Australia -> DMs hard to retrieve, best to email
Andrew Dessler @andrewdessler.com Prof of Atmospheric Sciences & climate scientist @ Texas A&M; AGU and AAAS Fellow; Native Texan; find out what I think at https://www.theclimatebrink.com/
Robin Wordsworth @rdword.bsky.social Physicist/planetary scientist/astrobiologist based at Harvard. Soccer dad in training. Social media native since 2024.
Michael White @mwclimatesci.bsky.social Climate science editor for @nature.com, handling submissions on atmospheric science, oceanography, the cryosphere, and hydrology. Podcast archive at https://forecastpod.org/.
Dr. David Miller 🏳️🌈 @davidimiller.bsky.social Physicist Turned Psychologist | Senior Researcher in #STEMed | Meta-Analysis Nerd | https://d-miller.github.io/
Also posts about 🧪 science funding to focus my attention.
Personal account. I don’t speak for my employer or any other orgs.
Dan Garisto @dangaristo.bsky.social science journalist | good physics, bad physics, and sometimes ugly physics
Signal: dgaristo.72
Email: digaristo@gmail.com
Tony DelGenio @tonydelgenio.bsky.social Retired Earth climate and planetary scientist. Current New York Giants football writer for SB Nation Big Blue View. Oenophile. Whovian.
Natassa Romanou @aromanou.bsky.social Oceans. Climate. Society. And everything in between. Climate scientist and numerical modeler, aka Anastasia Romanou. AR7 Tipping Points aficionado. Views my own -not anyone else's.
Steven J Phipps @stevenjphipps.bsky.social Climate scientist working at the intersections of climate change, the energy transition, international relations and humanitarianism. #Australia #Tasmania #Japan #Pacific
Location: Hobart, Tasmania, Australia
LinkedIn: linkedin.com/in/stevenjphipps/
Elizabeth Patterson @paleopatt.bsky.social Assistant Professor at Lafayette College | paleoclimate • caves • corals | (she/her)
website: https://sites.google.com/view/elizabethpattersonphd
Lily Klinek @lilyklinek.bsky.social PhD Candidate @UCDavis GGE, @UCBerkeley alum, @NSF GRFP
Forest carbon cycling, remote sensing, fluxes, maps 'n models
Plant Optics Lab
(she/her) 🍃🌞🌈 #T1D
Derrick @ohheyitsderrick.bsky.social Here for that sweet, sweet movie/TV talk.
Cristi Proistosescu @cristiproist.bsky.social Assistant Professor - School of Earth Sciences @ Illinois
cristi.pro
Hannah Ritchie @hannahritchie.bsky.social Deputy Editor, Our World in Data
Senior Researcher, University of Oxford
Climate, energy, environment, all things data.
Brian Rose @brianejrose.bsky.social Climate scientist at the University at Albany. I like open science, math, music, tinkering with computer code, and many other things.
Michael Tobis (mt) @mtobis.bsky.social PhD atmospheric/oceanic sciences 1996 but a bit rusty.
Opinionated.
Main topics: climate, sustainability, Canada, AI and ML, journalism.
Also: roots music, art, healthy plant-based food.
Please think like a planet!
https://initforthegold.blogspot.com
Yarrow Axford @yarrowaxford.bsky.social Climate scientist, passionate about the Arctic and Earth’s history. Explorer/mom. Was William Deering Prof at Northwestern, on to adventures in Boston and writing.
Dorian J. Burnette @djburnette.com Associate Professor of Atmospheric Science, Department of Earth Sciences, University of Memphis | Historical reconstruction, dendroclimatology, extreme events, storm chasing
Website: http://www.djburnette.com
Andrew Williams @andrewilwilliams.bsky.social Postdoc at UC San Diego | physics of climate 🌤️ 🌍 | PhD Oxford | views my own | he/him
andrewilwilliams.github.io
Brian Tang @btangywx.bsky.social Professor, Atmospheric and Environmental Sciences at UAlbany. Tropical cyclones & severe weather. Occasionally playing hockey, skiing, or paddleboarding.
LegraLeGra @atthenius.bsky.social #Climate scientist @
#GISS => #nyc &
#Columbia Uni
Mom
from WestTX
#bikeNYC #bike #NYCbike
Mostly find me
Here: https://fediscience.org/@atthenius
Personal acct.
Tad Komacek @tadkomacek.bsky.social Associate Professor of Physics of Exoplanet Atmospheres in the Atmospheric, Oceanic, and Planetary Physics sub-Department of the Department of Physics and Tutorial Fellow of Somerville College at the University of Oxford, UK. 
Deepti Singh @climatechirper.bsky.social scientist studying weather and climate extremes, climate variability, climate and health, pitbull advocate (She/Her)
https://labs.wsu.edu/climate/
Prof Paul Williams @profpaul.bsky.social Professor of Atmospheric Science at University of Reading. Studies turbulence, jet streams, aviation, climate change.
https://www.met.reading.ac.uk/~williams/
ClimateBook @climatebook.bsky.social This is the BlueSky feed of Raymond T. Pierrehumbert, Professor of Planetary Physics at the University of Oxford. Tune in for news about Principles of Planetary Climate, and diverse science and political commentary. (Also folk music news)
Svatli @svatli.bsky.social I'm from #Iceland, deeply passionate about #climate issues. As a #humanist and #atheist, I embrace a worldview centered on reason, compassion, and evidence, while remaining open to the many facets that define me.
David Grinspoon @drfunkyspoon.bsky.social Astrobiologist, Author, Musician. 👽🎸❤️🚀
Sagan Medalist, PEN winner, AAAS fellow.
Former Senior Scientist for Astrobiology Strategy at NASA.
There’s an asteroid named after me (22410 Grinspoon) which is better than having one with your name on it…
a rock or something @rockorsmth.bsky.social Planetary geologist (looking for a postdoc job) and part-time air ambulance pilot. Views are not my employers'. She/her.
Michael Battalio @battalio.com Research Scientist studying planetary climates
Heidi B. Hammel @hbhammel.bsky.social planetary astronomer | nearly famous | jwst interdisciplinary scientist | looks just like an ordinary mom | oboist (thoughts expressed here are my own)
Josh Halpern trading as @elirabett.bsky.social Chemical physics, climate change, blogger, deep into open teaching resources. Former bunny (pronouns Thou/Thee)
Colin Wright @drcolinwright.bsky.social Evolutionary Biology PhD | CEO/Editor-in-Chief Reality's Last Stand | Fellow at the Manhattan Institute | Advisor at Atheists for Liberty | Whiskey and cats.
Email: cwright1859 at gmail
K Griffin @kgriffin.dev Meteorologist, homebrewer, Forward Madison, Chelsea, USA, AFC Wimbledon. Data data data.
Sabine Hossenfelder @hossenfelder.bsky.social German Physicist
Andrew Mason @masedenver.bsky.social Year XXVII covering the NFL & year XXII chronicling the Broncos, now for DenverSports.com. “Enjoy every sandwich." -- Warren Zevon
Bjerknes Center for Climate Research (BCCR) @bjerknes.uib.no Understanding climate for the benefit of society. BCCR is a collaboration on climate research between the University of Bergen, NORCE, The Norwegian Institute of Marine Research and Nansen Environmental and Remote Sensing Center. 
Deke Arndt @deke-arndt.bsky.social I'm the Director of NCEI, and work with amazing people, but this is my personal account. Climate. Data. Risk. Okie stuff. Asheville stuff. Sugar by the bushel; molasses by the ton. Skipping leg day since 1998. 
Pierre Friedlingstein @pfriedling.bsky.social Born at 321 ppm. Climate & Carbon Cycle Scientist. Prof @UniofExeter Directeur de Recherche @CNRS @GlobalCarbonProject
Ankur Desai @profdesai.bsky.social Professor and Chair@UW_AOS Meteorology, Ecology, Climate Sci (Biosphere-Atmos) Parent to 3 kid chaos. Https://flux.aos.wisc.edu
Dr. Andrea Dutton @drandreadutton.bsky.social Geologist. Obsessed w/ carbonates, isotopes, sea level & climate. Professor at Univ. Wisconsin-Madison. she/her
Adam Terando @adamterando.bsky.social Climate scientist and urban/transportation policy dilettante. Personal account with my own opinions.
Peter de Menocal @pdemenocal.bsky.social President & Director
Woods Hole Oceanographic Institution 
Bob Kopp @bobkopp.net #Climate & sea level science + policy. Rutgers University. All views my own. www.bobkopp.net
Mauri Pelto @mauri-pelto.bsky.social Glaciologist who has spent 40+ years doing fieldwork on glaciers. Science advisor to NASA Earth. US Representative to the World Glacier Monitoring Service. Author of blog “From a Glaciers Perspective”. Grandparent, avid skier, dog walk/runner.
Prof Lisa Schipper 🌍🍉💪 @lisaschipper.bsky.social Climate adaptation & development•Prof Development Geography @giubresearch.bsky.social•Co-EiC @climdevjournal.bsky.social•PI @dependencybonn.de•Associate @sei.org & @ecioxford.bsky.social• @welthungerhilfe.bsky.social•she/her/Du•Servant to 2 rescue 🐈⬛ •🇸🇪
Jeff Berardelli @weatherprof.bsky.social Same @WeatherProf as Twitter. Posting about climate and weather. Chief Meteorologist and Climate Specialist WFLA NBC Tampa 
Adam Sobel @adamsobel.bsky.social Atmospheric scientist
Kate Marvel @drkatemarvel.bsky.social Climate scientist, formerly NASA, currently Project Drawdown. Former astrophysicist, current Earth supremacist. Author of HUMAN NATURE, best book of 2025 according to both Scientific American and my dad https://shorturl.at/aJRYb
Kim Cobb @kimcobb.bsky.social 40% Climate Scientist, 40% Mom, and 20% Indiana Jones. Unapologetically obsessed with carbon. Lawrence & Barbara Margolis Director, http://ibes.brown.edu. She/her. Views my own
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
Baylor Fox-Kemper @baylorfk.bsky.social Oceanography, Climate & Music all at #BrownUniversity. Opinions my own, facts are everybody's.
https://fox-kemper.com
Tom Swetnam @firescar.bsky.social Tree-ring scientist, forest ecologist, forest fires, climate and human interactions. Regents Professor Emeritus Univ AZ; home in New Mexico. 
Brian J Harvey @brian-j-harvey.bsky.social Associate Professor & Forest Fire Ecologist, University of Washington
Research in fire/disturbance/landscape/forest ecology in western US
2015 cohort in Smith Fellows Program
https://depts.washington.edu/bjhlab/
Abigail Swann, PhD @ecoclimatelab.bsky.social I study how climate works differently because of plants. Professor at @Univ. of Washington, views are my own. She/her
Scott St. George @scottstgeorge.paleohydrology.com Head of Weather & Climate Research at WTW, a global insurance advisory firm headquartered in London.
Alexander von Humboldt Fellow | Geological Survey of Canada alum | Formerly Associate Prof at University of Minnesota | Made in 🇨🇦 | Based in MSP
Kevin Anchukaitis @thirstygecko.bsky.social Climate scientist, paleoclimatologist, dendrochronologist, University of Arizona | https://kanchukaitis.github.io/ | Opinions are mine and not that of my employer
Valérie Masson-Delmotte @valmasdel.bsky.social PhD, climate scientist @lsce-ipsl.bsky.social @CEAParisSaclay @IPSL_outreach @hc_climat. Was co-chair @ipcc.bsky.social (AR6 WGI). Member of French Academy of Technology and Academy of Sciences.
Tim Osborn @timosbornclim.bsky.social Climate variability and change | Professor of Climate Science & Director of Climatic Research Unit | UEA | Views expressed here are my own, not UEA's
Benjamin Cook @dustybowl.bsky.social Climate scientist studying drought, land surface processes, climate extremes. https://www.drbenjamincook.net/
Peter Jacobs @pjacobs.bsky.social climate science (paleo, modern, future); public understanding of science (consensus, conspiracy theories, pseudoscience)
ORCID: https://orcid.org/0000-0002-6951-7126
Mastodon: fediscience.org/@peterjacobs
Bird Site: https://twitter.com/past_is_future
Ruth Mottram @ruthmottram.eurosky.social Climate scientist at DMI, Greenland, Antarctica, polar regions in general.
Now migrated to eurosky.social on here.
Mostly on mastodon though @ruth_mottram@fediscience.org
Blogging at sternaparadisaea.net
Dr Adam Levy @climateadam.bsky.social Climate scientist, journalist, YouTuber, Adam 🏳️🌈
https://www.youtube.com/ClimateAdam/
https://www.climateadam.com
Prof Friederike Otto @frediotto.bsky.social 🇬🇧 🇪🇺 physicist, philosopher, lead https://www.worldweatherattribution.org/, author of Climate InJustice https://greystonebooks.com/collections/current-affairs-politics/products/climate-injustice, she/her
Ken Caldeira @kencaldeira.com Mostly mentoring a group of postdocs.
Conceptual Investigations Unit, housed at Stanford.
Senior Scientist at Gates Ventures.
climate / energy / etc
https://ciunit.org
Posts imperfectly represent the views of my former self and not my employer.
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
Reto Knutti @retoknutti.bsky.social Professor for climate physics at @ethzurich.bsky.social.
David Ho @davidho.bsky.social Climate scientist; ocean carbon cycle and climate solutions. Professor @soest.hawaii.edu, University of Hawaiʻi at Mānoa; Visiting Faculty, Arizona State University. https://linktr.ee/david_ho
Michael E. Mann @michaelemann.bsky.social Scientist/Author/Speaker; Presidential Distinguished Prof/Director Center for Science, Sustainability & the Media, U. Penn; National Academy of Sciences; American Academy of Arts & Sciences; Royal Society; Tyler Prize