Dimitri Drekonja, MD, MS @dimitridrekonja.bsky.social Infectious Disease doc and clinical researcher; runner, biker, liberal, gardener, hiker, and canoer. Professor @U of MN; Minneapolis __ ID. All posts my own. #BLM #abolishbillionaires
Robert Califf @robcaliff.bsky.social 
Northwest in Motion @nwinmotion.bsky.social Gear, inspiration, information, and community for Northwest cyclists, runners, hikers, and skiers. We sell Italian quality cycling clothing at reasonable prices. https://northwest.motion.social/
Ralph Nader @nader.org The official Bluesky page of consumer advocate, author and former presidential candidate Ralph Nader. (Posts by Ralph signed with -R)
Dr. Glaucomflecken @glaucomflecken.bsky.social Ophthalmologist. Comedian. Speaker. Jonathan.
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
NEJM.org @nejm.org Welcome to the official Bluesky account for the New England Journal of Medicine. Follow for high-quality, peer-reviewed research and clinical content from the world’s leading medical journal, online at NEJM.org.
Follow @ai.nejm.org for medical AI content.
Reuters @reuters.com 
The Associated Press @apnews.com Advancing the power of facts, globally 🌎
Farzad Mostashari, MD @farzad-md.bsky.social Founder, Aledade
Former National Coordinator for Health IT
NYC Health Dept/ CDC EIS Officer
Inequality Media @inequalitymedia.bsky.social We are a non-profit organization founded by
@RBReich.bsky.social to inform and engage the public about the realities and impacts of inequality. | linktr.ee/inequalitymedia
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
Ed Hawkins @edhawkins.org Climate scientist at the National Centre for Atmospheric Science, University of Reading | IPCC AR6 Lead Author | MBE | Views own | https://edhawkins.org
Warming Stripes: http://www.ShowYourStripes.info
Dr. Dawn Wright @deepseadawn.bsky.social Seafloor mapper, Chief Scientist of smart mapping company Esri, Oregon State U. GIS/oceans professor, EC50, cyclist, 1st Black submersible diver to Challenger Deep, builds w/LEGO, raised in Hawaii. NAS, NAE, ORCID 0000-0002-2997-7611; She/her; views mine
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
Kimberly Nicholas @kimberlynicholas.bsky.social Climate scientist, Lund University.
Creator, climate action
podcast 🎙️ CLIMATE ACTUALLY https://youtube.com/@climateactually
& guide📱 SHIFT (jointheshift.earth).
Bestselling author, UNDER THE SKY WE MAKE 📖.
Newsletter: wecanfixit.substack.com 💌.
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/
Zack Labe @zacklabe.com Climate Scientist at @climatecentral.org | PhD | Passionate about improving science communication through data-driven stories | Harrisburg, PA | https://zacklabe.com/
Views, thoughts, and opinions expressed here are only my own.
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
Zeke Hausfather @zekehausfather.com "A tireless chronicler and commentator on all things climate" -NYTimes.
Climate research lead @stripe, writer @CarbonBrief, scientist @BerkeleyEarth, IPCC AR7 lead author.
Website: https://zekehausfather.com/
Substack: https://www.theclimatebrink.com/
Adam Sobel @adamsobel.bsky.social Atmospheric scientist
Jacquelyn Gill @jacquelyngill.bsky.social Climate, extinction, and biodiversity scientist at the University of Maine researching Earth’s past for a better future. Writing and podcasting for the planet. Chaotic good professor. She/her.
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
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
Peter Gleick @petergleick.bsky.social Climate, water, birds, bluegrass mandolin. Member US National Academy of Sciences, MacArthur Fellow, Carl Sagan Prize, author of The Three Ages of Water (2023) and When the Well Runs Dry (2026). Email me at pgleick (at) gmail.
Ayana Elizabeth Johnson @ayanaeliza.bsky.social Marine biologist, writer, policy nerd. Co-founder Urban Ocean Lab, think tank for the future of coastal cities. In love with climate solutions.
Dr. Jeff Masters @drjeffmasters.bsky.social Extreme weather and climate change expert writing for Yale Climate Connections. Co-founder, Weather Underground; former hurricane hunter.
Jeff Berardelli @weatherprof.bsky.social Same @WeatherProf as Twitter. Posting about climate and weather. Chief Meteorologist and Climate Specialist WFLA NBC Tampa 
Gavin Schmidt @climateofgavin.bsky.social Climate scientist, juggler. Bikes etc. Blogging at https://www.realclimate.org - data visualization, explainers, and debunking.
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
Benjamin Cook @dustybowl.bsky.social Climate scientist studying drought, land surface processes, climate extremes. https://www.drbenjamincook.net/
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 🐈⬛ •🇸🇪
Mike MacFerrin @icesheetmike.bsky.social Dr in glaciology and expert mapper of coastal topography at a Cooperative Research Institute. An organizer for disability rights in science, which mostly involves yelling at agencies. Science is the easier part of my work. #T1D
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
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. Samantha Montano @samlmontano.bsky.social Working on disaster justice & the climate crisis. Emergency Management PhD. Author of 📚DISASTEROLOGY 📚 she/her
Daniel Swain @weatherwest.bsky.social Weather and climate scientist focused on extreme events like floods, droughts, & wildfires on a warming planet. www.weatherwest.com
Dr. Merritt Rae Turetsky @queenofpeat.bsky.social Professor, scientist, mom. Author of Bogland. Chaser of wildfires and permafrost thaw. I love bogs and want you to join me. Learn more at merrittraeturetsky.com
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.
Jared Rennie @jjrennie.bsky.social Research Meteorologist at NOAA’s NCEI. We archive your data and I play with it. On this hell site too along with all the others. 
Simon Donner @simondonner.bsky.social Climate scientist, prof at UBC, writer, speaker, aquatic mammal, dragger of sand into the house.
Doug McNeall @dougmcneall.bsky.social Science Lead for Data-Driven Climate Modelling @ UK Met Office | University of Exeter | AI, UQ, Countering mis/disinformation.
dougmcneall.com
Reto Knutti @retoknutti.bsky.social Professor for climate physics at @ethzurich.bsky.social.
Prof. Stefan Rahmstorf @rahmstorf.bsky.social Climate scientist, professor of Physics of the Oceans in Potsdam. Dad. Opinions my own.
Born at 317 ppm CO2.
Prof. Bob Howarth @profbobhowarth.bsky.social Professor at Cornell University, Earth system scientist, co-EiC Land-Ocean-Atmosphere Research
Bob Henson @bhensonweather.bsky.social Meteorologist and journalist. I cover wacky weather, changing climate, and how we live, love, work, get around, and dream. 
Bob Kopp @bobkopp.net #Climate & sea level science + policy. Rutgers University. All views my own. www.bobkopp.net
Dr Adam Levy @climateadam.bsky.social Climate scientist, journalist, YouTuber, Adam 🏳️🌈
https://www.youtube.com/ClimateAdam/
https://www.climateadam.com
Sam Burgess @oceanterra.org Climate | ocean | science policy & diplomacy | Copernicus Climate Change Service, @ECMWF | Partner to @edhawkins.org | ex 🐼 | Views own | 🌍 🌡🌊 🛰 🪸| Born on Wurundjeri Country | 🇦🇺🇬🇧🇪🇺 |
www.pulse.climate.copernicus.eu
Mark Parrington @mparrington.bsky.social ECMWF senior scientist working on monitoring global #wildfire emissions, #airquality, atmospheric chemistry & #scicomm for the #CopernicusAtmosphere Monitoring Service @copernicusecmwf.bsky.social @ecmwf.int
Glen Peters @glenpeters.bsky.social Energy, emissions, & climate
CICERO Center for International Climate Research, Oslo, Norway
https://cicero.oslo.no/en/employees/glen-peters
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
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.
Naomi Oreskes @naomioreskes.bsky.social Historian, Earth Scientist, Writer, Public Intellectual.
Books: Merchants of Doubt; The Collapse of Western Civilization; Science on a Mission; Discerning Experts; Why Trust Science?; The Big Myth, all in many languages.
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
Dr. Tessa Fisher @tessafisher.bsky.social Research Facilitator, ASU| Astrobiologist | Trans Lesbian | SFF Writer | Lukewarm Ecosocialist | Union Woman | One Half of @asabpod.bsky.social | She/Her| 🌹
www.tessafisher.com
Words and opinions are my own.
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.
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! 
David Romps @davidromps.com Climate physics
Dr Matt Winning @mattywin.bsky.social 🎤 Climate change comedian
🌍 Lecturer in Economics of Sustainability @UCL.ac.uk
📚 Author of 'Hot Mess'
📻 Hosted BBC Radio 4's 'Net Zero: A Very British Problem'
www.mattwinning.com
https://linktr.ee/mattwinning
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 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
Dr. Andrea Dutton @drandreadutton.bsky.social Geologist. Obsessed w/ carbonates, isotopes, sea level & climate. Professor at Univ. Wisconsin-Madison. she/her
Peter de Menocal @pdemenocal.bsky.social President & Director
Woods Hole Oceanographic Institution 
Adam Terando @adamterando.bsky.social Climate scientist and urban/transportation policy dilettante. Personal account with my own opinions.
Peter Cox @coxypm.bsky.social Climate scientist who believes that the world is simpler than it looks. Director of Global Systems Institute, University of Exeter
Sarah E Myhre PhD @sarahmyhre.bsky.social Partnerships @DemocracyForward.org | Washingtonian | Climate and Democracy | Philanthropic strategy | Views are my own | Would rather be skiing | UC Davis, WWU alum
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
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. 
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
Julia Verville @juliahv.bsky.social Climate, energy, & forests. Midwesterner in the Golden State. Personal account.
Benjamin DeAngelo @bendeangelo.bsky.social Principal and Founder, Operation Future, LLC. Adjunct Professor, Howard University. Former Director, EPA Office of Climate Adaptation & Sustainability. Dad, drummer, cyclist.
Allison Crimmins @acrimmins.bsky.social Lady who climates. Executive Director for Industry Proving Ground at NOAA: Director of the Fifth National Climate Assessment. View my own. She/her.
Wolfgang Cramer @cramer-bondeau.fr #Climate & #biodiversity emeritus scientist, professor of global #ecology, #CNRS, MedECC, #IPCC, Acad. d'Agriculture de France.
Occasional rail travel and bicycle geek. 🇩🇪 🇫🇷 🇬🇧 🇸🇪 🇳🇴 https://tinyurl.com/wcrame
Pierre Friedlingstein @pfriedling.bsky.social Born at 321 ppm. Climate & Carbon Cycle Scientist. Prof @UniofExeter Directeur de Recherche @CNRS @GlobalCarbonProject
Logan Mitchell PhD @loganemitchell.bsky.social Climate scientist & energy analyst @UtahCleanEnergy. #ElectrifyEverything #EnergySky #GreenSky 🔌💡. Posts my own.
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.
Jeff Dukes @dukesjeff.bsky.social 🌎🌱Climate change science and global change ecology at Carnegie Science.
[Private account, not representing employer]
Sarah Burch @sarahlynnburch.bsky.social Professor, Canada Research Chair - Sustainability transitions and climate change policy. University of Waterloo, 🇨🇦
Executive Director, Waterloo Climate Institute. IPCC LA 6AR, WGIII.
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/
Harold Brooks @hebrooks87.bsky.social Research meteorologist-tornadoes and forecast evaluation. Weather impacts. Volleyball referee-NCAA/PAVO, NFHS, USAV. Mathcounts competitive math coach.
Dr. Asmeret Asefaw Berhe @aaberhe.com Scientist, educator, advocate for inclusive excellence in STEM. Former Director of DOE Office of Science.
Soil biogeochemistry | Climate Change |Political Ecology.
aaberhe.com
Rob Moore @rmoore2023.bsky.social Works on issues related to climate adaptation, insurance, policy, and escalating disaster risks due to climate change. Also a real downer at cocktail parties.
Chris Field @chrfield.bsky.social Director, Stanford Woods Institute for the Environment.
David Harkin 🌍 @davidharkin.bsky.social Climate adaptation and resilience strategist at Network Rail Scotland. Former Climate Scientist and Environmental Risk Manager at Historic Environment Scotland.
#ClimateAdaptation #ClimateAction #ClimateChange
Dr. Melissa Burt @drmelissaburt.bsky.social Atmospheric & Climate Scientist, Social Justice, Atmospheric Science Education Researcher, Co-founder Science Moms
Mama, crafter, baker
Karin Kirk @karinkirk.bsky.social Geologist, skier, science journalist for Yale Climate Connections. Former Earth and climate science writer for NASA, but our federal govt decided these topics are threatening to them. More determined than ever to keep pushing for climate solutions.
Dr. Ramesh Laungani @drrambio.bsky.social Assoc Prof of Env. Science @Marist, 🌾 & biochar ecology, @ourwarmregards host, #1000STEMWomen founder,#scicomm, fighting #ClimateChange. Messages=mine
https://www.marist.edu/science/faculty/ramesh-laungani
Dr. Barb Mayes Boustead @windbarb.bsky.social Weather, climate, writing, #scicomm, teaching, LIW, history, sports, wagering, equity. Author of WILDER WEATHER, published by SDHS Press. Nebraska/Midwest/Michigan. She/her. #binders #amwriting
Damon Matthews @damonmatthews.bsky.social Climate scientist at Concordia in Montreal, co-creator of climateclock.net, Director of sustainabilitydigitalage.org and member of Canada's Net-Zero Advisory Body. Interested in carbon budgets, nature-based solutions, and many other things
Joeri Rogelj @joerirogelj.bsky.social prof. climate science & policy | Imperial College London | 1.5C/net zero/carbon budget/pathways/justice | IPCC & UNEP lead author | ESABCC member | father
Diana Urge-Vorsatz @dianaurge.bsky.social Professor, Central European University
@CEU
Vice Chair, Intergovernmental Panel on Climate Change
@IPCC_ch
Daniel Gilford, PhD @danielgilford.bsky.social FL Climate scientist, studying hurricanes & communicating climate change. I love my family, comics, coffee, writing, Xian deconstruction, and my found family: the X-Men.
🏳️🌈, 🌎, 🌀, he/they
All views expressed are my own.
Jonathan Overpeck @greatlakespecktwo.bsky.social Environmental/Climate scientist for 35+ years; NAS Member. Samuel A. Graham Dean, @UMSEAS @UMICH. Tweets my own. Thinking grad school? Join us at @UMSEAS.
Douglas Maraun @dmaraun.bsky.social Climate scientist. Leader of the Regional Climate Research Group at @wegenercenter.bsky.social, @universityofgraz.bsky.social. @ipcc.bsky.social AR6 Lead Author. Father of two. https://homepage.uni-graz.at/en/douglas.maraun/
Stephan Lewandowsky @lewan.uk Professor of Cognitive Science, University of Bristol. Homepage: https://www.lewan.uk
Scott Doney @scottdoney.bsky.social Ocean and climate scientist and professor
Gabi Hegerl @gabihegerl.bsky.social Climate scientist
John Cook @johnfocook.bsky.social Researches climate & vaccine misinformation at the University of Melbourne. Founded SkepticalScience.com. Published Cranky Uncle vs. Climate Change. Developed the games Cranky Uncle (crankyuncle.com) and Cranky Uncle Vaccine (crankyunclevaccine.org)
Ed Maibach @maibached.bsky.social I'm a health professional who’s all in on using the science of science communication to fight climate change. My message: The end of fossil fuels will be a new beginning for health. #Resist