Anthony Edwards @edwardsanthonyb.bsky.social Newsroom Meteorologist at the San Francisco Chronicle
Snow lover, Seattle sports fan, University of Washington graduate
sfchronicle.com/author/anthony-edwards/
John Voorheis @johnvoorheis.bsky.social Bad takes are my fault
Kevin Schwarzwald @kschwarzwald.bsky.social Not all those who wander are lost. Climate variability and impacts by day, cities by evening, rock violin by night (sometimes all three at once). 
@cira-csu.bsky.social @cira-csu.bsky.social 
Brian Kahn @blkahn.bsky.social Your friendly local Wired science editor
Zahra Hirji @zhirji.bsky.social Bloomberg News climate reporter. Past BuzzFeed News, InsideClimate News. Mom. She/her. Views are my own.
Email: zhirji@bloomberg.net
Signal: zhirji.51
Jeff Goodell @jeffgoodell.bsky.social Author, NYT bestseller THE HEAT WILL KILL YOU FIRST | Guggenheim Fellow | Contributing Writer, ROLLING STONE
Brooke Harrington @ebharrington.bsky.social Professor of Sociology, Dartmouth;views my own. Author, 'Capital w/out Borders' https://shorturl.at/bGsLB and 'Offshore' https://shorturl.at/rTacl; words
@washingtonpost.com, @nytimes.com, the Atlantic & the Guardian.
All at brookeharrington.com
Shouro Dasgupta, PhD @shourodasgupta.bsky.social Environmental economist, Fondazione CMCC
Lecturer, Ca' Foscari Venezia
Visiting Senior Fellow, @granthamlse.bsky.social
Labour, food (in)security, health, inequality
Kerry Cook @kerrycook.bsky.social Climate scientist and educator
Professor of Climate System Science
The University of Texas at Austin
Russ Schumacher @rschumacher.cloud "an upbeat atmospheric science professor" -- theverge | sometimes it snows in April | Fort Collins, Colorado | personal account
Eastern Snow Conference @eastsnowconference.bsky.social The Eastern Snow Conference (ESC) is a joint Canadian/U.S. organization founded in the 1940s originally with members from eastern North America.
Check us out at our website: https://www.easternsnow.org/
Dr. Genevieve Guenther (she/they) @doctorvive.bsky.social
Founding Director, End Climate Silence
Author, *The Language of Climate Politics: Fossil-Fuel Propaganda and How to Fight It*
genevieveguenther.com
US CLIVAR @usclivar.bsky.social US Climate Variability and Predictability Program - Investigating the global climate system across multiple time scales emphasizing the role of the ocean.
Learn more at usclivar.org
Terry Hughes @profterryhughes.bsky.social Scientist, mentor, posting on #ecology and #conservation, #environment, #climate change and #coral reefs. Australian-Irish. Fellow of the Australian Academy of Science.
https://scholar.google.com.au/citations?user=MhJ2LfsAAAAJ&hl=en
Chris Smith @cjsmith.eu Climate scientist at IIASA. IPCC AR7 CLA. Responsive climate projections. The guy behind the fair model and radiative forcing barchart. Occasional runner and guitarist.
github.com/chrisroadmap | cjsmith.eu
Jeff Berardelli @weatherprof.bsky.social Same @WeatherProf as Twitter. Posting about climate and weather. Chief Meteorologist and Climate Specialist WFLA NBC Tampa 
Andrew King (he/him) @andrewkingclimate.bsky.social Climate Scientist at University of Melbourne. Interested in climate change and weather extremes. 🏳️🌈 
Adam Pollack @crispapoll.bsky.social Assistant professor @ Univ. of Iowa
Flood-risk management and decision support research
https://abpoll.github.io/
Christopher Flavelle @cflav.bsky.social New York Times reporter, covering the federal government.
Pat Hyland @hylandwx.bsky.social AMS Certified Consulting Meteorologist (#771) | Forensic Meteorologist | Outreach Specialist | Trivia Host | Marathoner | Game Show Champion
Erin Sikorsky @erinsikorsky.bsky.social Director, Center for Climate and Security, DC
Former US Nat'l Intelligence Council
Wisconsinite at heart
Posts my own
Heidi Kitrosser @heidikitrosser.bsky.social Law professor focusing on constitutional law, especially free speech, the separation of powers, and government secrecy. Friend to all dogs and cats. Champion procrastinator.
Jeremy Koster @jeremykoster.bsky.social Aligning incentives for better science - quality over status
Signer of DORA: https://sfdora.org/
Co-director of ENDOW project: https://endowproject.github.io/
Interdisciplinary socio-ecological scientist advocating for congruence of theory, data, and stats
Brendan Nyhan @brendannyhan.bsky.social Dartmouth political scientist and Bright Line Watch co-director. Previously Upshot NYT / CJR contributor, Spinsanity co-founder, All the President's Spin co-author.
https://sites.dartmouth.edu/nyhan/
http://brightlinewatch.org
Benjamin Wittes @benjaminwittes.lawfaremedia.org Editor in Chief, @lawfaremedia.org
Senior Fellow, Brookings
Author, #DogShirtDaily
Host, #DogShirtTV
Purveyor of mischief.
Harasser of Russian diplomats worldwide.
Cullen Hendrix @cullenhendrix.bsky.social Senior Fellow at Peterson Institute. Sustainability, security, and political economy. Heart masquerading as head since 1977.
You may not believe in climate change, but your insurance company does.
Glen Peters @glenpeters.bsky.social Energy, emissions, & climate
CICERO Center for International Climate Research, Oslo, Norway
https://cicero.oslo.no/en/employees/glen-peters
Pete Buttigieg @petebuttigieg.bsky.social Husband, dad, veteran, writer, and proud Midwesterner. 19th US Secretary of Transportation and former Mayor of South Bend.
Erle Ellis @erleellis.bsky.social Exploring the ecology of an increasingly human planet.
Prof. Geography & Environmental Systems, UMBC
Anthromes, Anthroecology & Anthropocene
https://anthroecology.org/people/ellis/
Carl T. Bergstrom @carlbergstrom.com Professor, UW Biology / Santa Fe Institute
I study how information flows in biology, science, and society.
Book: *Calling Bullshit*, http://tinyurl.com/fdcuvd7b
LLM course: https://thebullshitmachines.com
Corvids: https://tinyurl.com/mr2n5ymk
he/him
Quinta Jurecic @qjurecic.bsky.social Writing about law and democracy at The Atlantic, previously Lawfare. Not a lawyer. It's KWIN-ta.
Signal: qjurecic.32
Climatologist49 @climatologist49.bsky.social PhD Climate Scientist. Alaska. The Earth is warming because of us. Mooseologist. All opinions are my own. Future FIFA Peace Prize winner. TDS. Signal: Climatologist.49
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.
Nat Bullard @nathanielbullard.com Energy systems and information platforms.
I do that presentation.
https://www.nathanielbullard.com/
📍Singapore
Jonathan Lambert @jonlambert.bsky.social Science journalist at NPR covering global health. Minnesotan in DC. jlambert1@npr.org. On signal @jonlambert.12
https://jonathanmlambert.com/
LEAP-STC @leapstc.bsky.social Revolutionizing climate projections by integrating climate and data science, through innovation, diversity, legacy, and impact.
{ MAIN: leap.columbia.edu }
{ EVENTS: leap.columbia.edu/events }
{ NEWS: leap.columbia.edu/news }
Steve Bowen @stevebowen.bsky.social Work: Chief Science Officer @GallagherRe
Alumnus: Notre Dame (MSc: Business Analytics). Florida State (BS: Meteorology).
Healthy Obsessions: Weather & Climate Nerdery. Metallica. Notre Dame. Chicago Sports (Blackhawks, Cubs, Bears, Bulls).
Views: Mine
Darren Ficklin @dficklin.bsky.social hydrologist at Indiana University
Jigar Shah @jigarshahdc.bsky.social husband, dad, focused on elevating American entrepreneurs and innovators to achieve energy abundance by deploying at scale. It's simple, not easy. https://www.linkedin.com/in/jigarshahdc/
Mike Dettinger @mdettinger.bsky.social Water/environ/climate news & my occasional thoughts/calcs, from CarsonCity (Wá∙šiw land), NV. Retired USGS & now p/t @CW3EScripps scientist.
Bona fides? PhD.UCLA F.AGU F.AAAS M.NAE; www.mdettinger.com
Eric Holthaus @ericholthaus.com Meteorologist for REBUILD.US based in Minneapolis. Contributing climate journalist for The Guardian. Author of The Future Earth. Optimistic to a fault.
DM to contact me securely on Signal
Alejandra Borunda @alejandrabee.bsky.social Reporter @NPR covering climate change and human health. Formerly @NatGeo, @LamontEarth. On Signal at @alejandra.02
Danny Cullenward @ghgpolicy.org Forensic climate economist and lawyer • The carbon accounting canary in your climate policy coal mine • https://ghgpolicy.org
U.S. Global Change Research Program @usgcrp.bsky.social Advancing the science of climate and global change. Home of the National Climate Assessment and National Nature Assessment. Official account.
Zoë Schlanger @zoeschlanger.bsky.social Reporter covering chemicals, climate, cool plants. Author of THE LIGHT EATERS, a plant book, out from Harper Books. I'm zoeschlanger.99 on Signal
ClimateDynamics @climatedynamics.bsky.social Same old climatedynamics from Twitter.
Shersingh Joseph Tumber-Dávila @josephtumber.bsky.social Assistant Prof of Environmental Studies-Dartmouth College & Harvard Forest Affiliate
PI of the Tumber-Dávila Lab: https://sites.dartmouth.edu/tumberdavilalab/
Ecology | Educator | Forests | terrestrial Carbon
Raíces Boricua 🇵🇷 | foster/adoption girl dad
Dr. Tripti Bhattacharya @triptychphrases.bsky.social Monsoon enthusiast, cat mom, occasional musician. Associate Professor at Syracuse University, Principal Investigator of Paleoclimate Dynamics Lab. https://trbhatta.expressions.syr.edu/. Reposts are not endorsements. Views are my own.
Ryan Abernathey @rabernat.bsky.social Scientist and Startup Founder
Co-Founder and CEO @Earthmover
@pangeo_data steering council member
ex-Professor @Columbia @LamontEarth
Simon Evans @drsimevans.carbonbrief.org Press Gazette energy & environment journalist of the year 2022
Highly commended:
Society of Editors 2025
Shortlisted:
Press Awards 2025
Press Gazette 2025
AOP 2025
Deputy Ed + Snr Policy Ed, Carbon Brief
simon.evans@carbonbrief.org
Cristi Proistosescu @cristiproist.bsky.social Assistant Professor - School of Earth Sciences @ Illinois
cristi.pro
John Abatzoglou @climate-guy.bsky.social Tracking weather and climate and why they matter
climatologylab.org
Richard Allan @rpallanuk.bsky.social Professor of climate science at the University of Reading: http://www.met.reading.ac.uk/~sgs02rpa/
Jesse M. Keenan @jessemkeenan.com Favrot II Associate Professor of Sustainable Real Estate and Urban Planning, Tulane University https://jessemkeenan.com/
North: The Future of Post-Climate America (Oxford University Press)
https://global.oup.com/academic/product/north-9780197641613
Stephen Strader @stephenmstrader.bsky.social Associate Professor | Hazards & Disaster Geographer | Severe Storms Meteorologist | Avid fan of condensation in the sky and sound waves. www.stephenmstrader.org 🌪⛈️🌀❄️🌡🗺⚠️
My opinions are solely my opinions.
Peter Stott @stottpeter.bsky.social Climate Scientist at Met Office and University of Exeter. Author of Hot Air: The Inside Story of the Battle Against Climate Change Denial
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
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
Elizabeth Kolbert @elizkolbert.bsky.social I am a New Yorker staff writer and author of "H is for Hope," "Under a White Sky," and "The Sixth Extinction," and “Life on a Little-Known Planet." Learn more at elizabethkolbert.com.
Heatmap News @heatmap.news A new media company focused on the biggest story of our time: climate change. Subscribe to our newsletter at https://heatmap.news.
Susie Dent @susiedentwords.bsky.social Always in the Corner
Costa Samaras @costasamaras.com Climate, energy, emerging tech, resilience, & policy professor. Carnegie Mellon Univ. Institute for Energy Innovation Director. Former Biden-Harris White House OSTP Chief Advisor for the Clean Energy Transition. Personal account. He/Him. costasamaras.com
Emily Pontecorvo @emilypont.bsky.social Staff writer @heatmap.news | signal: emilypont.89
Chris Field @chrfield.bsky.social Director, Stanford Woods Institute for the Environment.
Stanford Woods Institute for the Environment @woods.stanford.edu Stanford's collaboration hub for interdisciplinary environmental research about people & planet. Focused on climate resilience, natural climate solutions, thriving ecosystems, human & planetary health, and just outcomes. | woods.stanford.edu
James Holland Jones @juemos.bsky.social Anthropologist in the Stanford Doerr School of Sustainability studying human adaptation, infectious disease dynamics, and climate fiction.
https://heeh.stanford.edu
Michael Wara @michaelwara.bsky.social Works at Stanford on equitable climate and energy law/policy with a big helping of wildfire and insurance.
Andrew Freedman @afreedma.bsky.social Senior Reporter, Weather & Climate @cnn. Priors: Axios, WaPo | Alum: The Fletcher School, Columbia Climate & Society | Tips: andrew.freedman@cnn.com | afreedman@protonmail.com | Signal: @afreedmanclimate.03
Gernot Wagner @gwagner.com Climate economist, Columbia
https://gwagner.com
It's pronounced "juggernaut" without the "jug"
Eric Roston @eroston.bsky.social Butterflies and zebras and moonbeams and fairy tales. Literally wrote the book on carbon. Born 326.17. He/him. "Bleakly amusing." —A. Martine.
"The dad jokes will continue until morale improves." —Charlie Jane Anders.
Signal: eroston.87
Bloomberg Green
Christopher Callahan @ccallahan45.bsky.social climate scientist: extreme heat, health, attribution, climate in the courts. heat wave is two words. iuclimateandsociety.com
Dave Vetter @davidrvetter.bsky.social Climate and sustainability writing and communications; duck monitor.
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/
Kelly Hereid @kellyhereid.bsky.social Climate scientist, geologist, and catastrophe modeler, Liberty Mutual. Posts on all things hurricane, wildfire, flood, earthquake, tornado. Sassy takes are mine not employer's.
📍Oakland, CA
Website: hereidk.strikingly.com
Mathew Barlow @mathewabarlow.bsky.social Climate scientist at UMass Lowell: droughts, floods, extreme events, & climate change. IPCC WG1 AR6 lead author. Skunk cabbage fan. he/him/his. Shocked but not awed.
Google Scholar: https://scholar.google.com/citations?user=qWV-WIQAAAAJ&hl=e
Naomi Oreskes @naomioreskes.bsky.social Historian, Earth Scientist, Writer, Public Intellectual.
Books: Merchants of Doubt; Collapse of Western Civilization; Science on a Mission; Discerning Experts; Why Trust Science?; The Big Myth. Loves: Chocolate, Red Wine, Skiing, family. Hates: Beets.
Randall Munroe @xkcd.com 
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.
Pierre Friedlingstein @pfriedling.bsky.social Born at 321 ppm. Climate & Carbon Cycle Scientist. Prof @UniofExeter Directeur de Recherche @CNRS @GlobalCarbonProject
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
Malte Meinshausen @meinshausen.bsky.social The University of Melbourne & Climate Resource
Robert Rohde @rarohde.bsky.social Chief Scientist for @berkeleyearth.org.
Physics PhD & data nerd. Usually focused on climate change, fossil fuels, & air quality issues.
Prof. Anders Levermann, PhD @alevermann.bsky.social °head of complexity science @PotsdamInstitute seeking simple laws in nature & economics https://www.pik-potsdam.de/~anders °climate physics professor @PotsdamUniversity °formerly @ColumbiaUniversity °author https://www.foldingtheworld.net °posts own work.
Ailie Gallant @ailiegallant.bsky.social Climate scientist at Monash U in Australia, Wurundjeri & Bunurong Country. Interested in climate hazards, rainfall, weather resources & climate comms. Centre of Excellence for 21st Century Weather @21stcenturyweather.bsky.social | NESP Climate Systems Hub
Benjamin Cook @dustybowl.bsky.social Climate scientist studying drought, land surface processes, climate extremes. https://www.drbenjamincook.net/
Reto Knutti @retoknutti.bsky.social Professor for climate physics at @ethzurich.bsky.social.
Ben Sanderson @benmsanderson.bsky.social Climate scientist at CICERO, Oslo. I try to talk about climate science, but inevitably start talking about trains and bicycles if left unattended.
Carbon Brief @carbonbrief.org Award-winning journalism focused on #climatechange, science, energy and policy. Subscribe to our free newsletters: http://bit.ly/CBnewsletters or visit our website: https://www.carbonbrief.org/
Follow our journalists: https://go.bsky.app/6X95R1T
Erich Fischer @erichfischer.bsky.social Climate scientist investigating weather and climate extremes, professor at ETH Zurich (@ethzurich.bsky.social), fascinated by weather and climate, IPCC AR6 lead author
Seth Borenstein @borenbears.bsky.social Climate and science writer at The Associated Press, covers disasters, all sorts of science. Teaches journalism at NYU/DC. Father of 3, husband of 1. Red Sox fan.
Kai Kornhuber @kornhuber.bsky.social Theme Lead Weather Extremes & Climate Dynamics at IIASA, adj. assoc. Research Scientist LDEO, Co-Chair Risk KAN
PIK_climate @pik-potsdam.bsky.social Science for safe & just #Climate future. Scientific Directors: Johan #Rockström, Ottmar #Edenhofer // Website EN: https://www.pik-potsdam.de/en, DE: https://www.pik-potsdam.de/de // All PIK social media channels: https://pik-potsdam.de/socials
Heidi Cullen @heidicullen.bsky.social climate change 🌡/extreme weather ⚡️/science communication 📣 | ocean health 🌊/ Climate Director @schmidtsciences | formerly @MBARI_News @WWAttribution @ClimateCentral @weatherchannel @NCAR_Science | i ❤️ Labs | thalassophile 💙
Suzana Camargo @scamargo.bsky.social Scientist at Lamont-Doherty Earth Observatory, Columbia University. Hurricanes, typhoons, climate extreme events. Brazilian living in the US. Tennis fan. - A Andrea Dittus @andreadittus.bsky.social Research Scientist at the University of Reading & National Centre for Atmospheric Science | Views own.
Grantham Research Institute at LSE @granthamlse.bsky.social World-leading centre for policy-relevant research and training in climate change and the environment based at the London School of Economics and Political Science and chaired by Lord Nicholas Stern. Posts by Merlin Sibley
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
Mike Byrne @drmichaelbyrne.bsky.social climate scientist | extreme temperatures, atmospheric dynamics, water cycle | Reader @ U. St Andrews, PhD from MIT | he/him | 🇮🇪 in 🏴
https://sites.google.com/view/climate-dynamics-lab
Louise Slater @louiseslater.bsky.social Prof of Hydroclimatology & Associate Head of the Social Sciences Division (Research & Impact), University of Oxford