Tuomas Mattila @tuomasjmattila.eurosky.social Farmer, principal scientist (SYKE), soil health advocate.
Assoc. prof. Agroecology, Dr.Sc.Tech, Holistic Management CEd, Ecological Engineer.๐ฑ๐ชฑ๐ฆ ๐๐ฐ๐งช
@drmaligator.medsky.social @drmaligator.medsky.social ER Physician in a Red State, Covid frontline worker, Malinois Wrangler
โA delightful mix of medical insights, puppy love, and a hint of existential dread.โ-BlueskyRoast.com
Niko Suvisto @nikosuvisto.com Life on hold by severe #MECFS, currently 99% bedbound ๐
Documenting my life like it is now, advocacy through photography ๐ท
๐Finland
https://nikosuvisto.com/
Best of Dying Twitter @bestofdyingtwit.bsky.social Looking into it. Chief Looker: @jenn.bsky.social
Iikka Kivi @koomikkokivi.bsky.social Stand up -koomikko. Tuottaja. Kรคsikirjoittaja. Luonnonsuojelija. Videopelinรถrtti.
osasto @osasto.bsky.social 
Robert Rohde @rarohde.bsky.social Chief Scientist for @berkeleyearth.org.
Physics PhD & data nerd. Usually focused on climate change, fossil fuels, & air quality issues.
Katharine Hayhoe @katharinehayhoe.com climate scientist
posts 100% my own
๐จ๐ฆ 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
Gavin Schmidt @climateofgavin.bsky.social Climate scientist, juggler. Bikes etc. Blogging at https://www.realclimate.org - data visualization, explainers, and debunking.
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
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.
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
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
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
Jacquelyn Gill @jacquelyngill.bsky.social Climate, extinction, and biodiversity scientist at the University of Maine researching Earthโs 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
Peter Kalmus @climatehuman.bsky.social Climate scientist working at NASA/JPL and lover of truth. Arrested for defending Earth. Opinions mine. 
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/
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.
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.
Leah Stokes @leahstokes.bsky.social Professor of climate + energy policy at UCSB. Alumni of MIT, Columbia and UToronto. Hosts "A Matter of Degrees" podcast. Cuts carbon pollution! Proudly ๐จ๐ฆ Gardener ๐ฑ leahstokes.com; Newsletter: electricnotes.news
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.
Prof Richard Betts @richardabetts.bsky.social Climate scientist, University of Exeter & Met Office. Expert Adviser to Adaptation Committee of the Climate Change Committee. Lead author IPCC AR4, AR5, AR6 & AR7. Live music lover, supporter of grassroots venues. Cycles a lot, rock climbs occasionally.
Kevin Anderson @kevinclimate.bsky.social Professor of Energy & Climate Change at Universities of Manchester & Uppsala.
Translating climate science, through carbon budgets, into policy goals & mitigation options.
Co-founder https://climateuncensored.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.
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.
Glen Peters @glenpeters.bsky.social Energy, emissions, & climate
CICERO Center for International Climate Research, Oslo, Norway
https://cicero.oslo.no/en/employees/glen-peters
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
Heidi Cullen @heidicullen.bsky.social climate change ๐ก/extreme weather โก๏ธ/science communication ๐ฃ | ocean health ๐/ Climate Director @schmidtsciences | formerly @MBARI_News @WWAttribution @ClimateCentral @weatherchannel @NCAR_Science | i โค๏ธ Labs | thalassophile ๐
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/
Daniel Swain @weatherwest.bsky.social Weather and climate scientist focused on extreme events like floods, droughts, & wildfires on a warming planet. www.weatherwest.com
Tamsin Edwards @flimsin.bsky.social Professor of Climate Change, King's College London. Climate science, communication, recovering/managing ME/CFS. ๐ณ๏ธโ๐ ๐ฆ๐ถ ๐ง
Simon Donner @simondonner.bsky.social Climate scientist, prof at UBC, writer, speaker, aquatic mammal, dragger of sand into the house.
Reto Knutti @retoknutti.bsky.social Professor for climate physics at @ethzurich.bsky.social.
Jean-Pascal van Ypersele @jpvanypersele.bsky.social IPCC Vice-Chair for AR5, climate physicist, convinced that we can improve the well-being of all those who need it. Science, justice, empathy, sustainability without greenwashing, gender equality, listening to youth๐๐ญ
Valรฉrie 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.
Ken Rice @kenrice.bsky.social Interested in #scicomm, in particular about astronomy and climate change. Professor of Computational Astrophysics and Head of Institute for Astronomy, Univ. of Edinburgh. Views own, of course.
Dr. Katharine Wilkinson ๐ฑ @kkwilkinson.bsky.social ๐คธ๐ปโโ๏ธ Climate author, teacher, creator ๐ Climate Wayfinding (new!), All We Can Save, Drawdown, etc โจ Lead @allwecansave.bsky.social ๐ Co-host, A Matter of Degrees ๐ ATL
True loves: ๐๐๐โโฌ๐บ๐ผ๐ณ๐โฐ๏ธ
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
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
Prof Julia Steinberger ๐น๐ฑ๐ #ClimateAction #Fightfascism @jksteinberger.bsky.social Ecosocialist bluestocking. Immigrant & settler ๐ช๐บ๐จ๐ญ๐บ๐ธ๐ฌ๐ง. Social ecology & ecological economics at Uni Lausanne in ๐จ๐ญ. Bad at email. She/her
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
Mike MacFerrin @icesheetmike.myatproto.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
Dr. Merritt Rae Turetsky @queenofpeat.bsky.social Pre-order Bogland at https://wwnorton.com/books/bogland
Author, scientist, mom. Bog adventurer. Permafrost detective. Learn more at merrittraeturetsky.com
IPCC @ipcc.bsky.social Intergovernmental Panel on Climate Change
Climate Central @climatecentral.org Researching and reporting the science and impacts of climate change ๐
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
Yale Climate Connections @climateconnections.bsky.social We're a news service that helps you understand climate change and what you can do about it. Get climate solutions in your inbox: https://yaleclimateconnections.org/newsletters/
Skeptical Science @skepticalscience.bsky.social Non-profit science education organization building public resilience against climate misinformation. More at http://sks.to/welcome
AGU (American Geophysical Union) @agu.org Official AGU: supporting 500k+ Earth & space science advocates.
๐ ๐ ๐ฌ
Save the Date for #AGU26 in San Francisco, CA, 7-11 December, 2026.
Climate Power @climatepower.bsky.social Fighting for bold climate action, exposing Big Oilโs greed, and holding polluters accountable โก๏ธ
UN Environment Programme @unep.org Official account of the United Nations Environment Programme
https://www.unep.org/
Inside Climate News @insideclimatenews.org Pulitzer Prize-winning, nonprofit, non-partisan newsroom dedicated to covering climate, energy and the environment. Our newsletters: http://bit.ly/3mcVORO
350.org @350.org Building a global, people-powered movement to end the fossil fuel era and create a world grounded in climate justice and powered by safe, fair renewable energy for all.
Yale Environment 360 @yalee360.bsky.social An online magazine offering reporting, opinion, and analysis on global environmental issues. Published at the Yale School of the Environment. Our newsletter: e360.yale.edu/newsletter
Nature Portfolio @natureportfolio.nature.com Nature Portfolioโs high-quality products and services across the life, physical, chemical and applied sciences is dedicated to serving the scientific community.
Grist @grist.org We're a nonprofit news org dedicated to telling stories of climate solutions and a just future. Get our journalism in your inbox: https://grist.org/subscribe/
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
Project Drawdown @projectdrawdown.bsky.social ๐ The worldโs leading guide to science-based climate solutions.
Visit www.drawdown.org to learn more
NASA Earth @thenasaearth.bsky.social 
Climate Home News @climatechangenews.com We deliver original journalism that informs & inspires action to tackle the global climate crisis | Covering Climate Now winners 2025 | Drum Award Winners 2022
World Resources Institute @worldresources.bsky.social WRI is a global research organization working to improve peopleโs lives, protect #nature, and halt #climatechange. ๐๐
๐ Learn more: https://go.wri.org/mmTUco
Climate Desk @climatedesk.org A collaboration of more than a dozen news organizations dedicated to exploring the human, environmental, economic, and political impacts of our changing climate, and sharing our work with a wide audience.
Find us at: ClimateDesk.org
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
Andy Revkin ๐ โ๐ผ ๐ช โฎ๏ธ revkin.substack.com @revkin.bsky.social 40 years of prize-winning sustainability journalism, mostly @nytimes, #sustainwhat webcaster https://revkin.substack.com, #Anthropocene Working Group member, solution seeker, songwriter https://j.mp/revkinlinks
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
Kendra "Gloom is My Beat" Pierre-Louis @kendrawrites.com Climate journalist based in NYC. Only speaking for myself. If the NYT has no haters I'm dead.
Tips? Reach me on Signal kendrawrites.04
Leo Hickman @leohickman.carbonbrief.org Editor and director, Carbon Brief
https://bsky.app/profile/carbonbrief.org
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
Emily Atkin @emorwee.bsky.social I run HEATED, a weekly newsletter and podcast devoted to climate accountability reporting and opinion. Philly-based. She/her.
Signal: @emorwee.06
Brian Kahn @blkahn.bsky.social Your friendly local Wired science editor
Mary Annaรฏse Heglar @maryannaise.bsky.social I write about climate change/grief/justice. Author of Troubled Waters (novel) & The World is Ours to Cherish (childrenโs book). Birmingham bred me, Mississippi fed me. โค๏ธ๐๐๐๐ค https://www.maryannaiseheglar.com/
Dana Nuccitelli @dananuccitelli.bsky.social Research Manager for @cclusa.org, environmental scientist, climate journalist for @climateconnections.bsky.social. Views my own.
George Monbiot @georgemonbiot.bsky.social Ungainly on land
David Roberts @volts.wtf I run a newsletter/podcast called Volts about clean energy & politics. Subscribe & join the community at http://volts.wtf!
Jeff Berardelli @weatherprof.bsky.social Same @WeatherProf as Twitter. Posting about climate and weather. Chief Meteorologist and Climate Specialist WFLA NBC Tampa 
Amy Westervelt @amywestervelt.bsky.social Investigative climate reporter. Ida Tarbell stan. Run Drilled.media, contrib lots of places. Author "Brought To You By" @bloomsburybooksus.bsky.social. Pod: https://push.fm/fl/drilled. YT:@DrilledMedia. Signal: adubs.78.
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
Naomi Klein @naomiaklein.bsky.social "End Times Fascism" book available now.
Doppelganger. This Changes Everything. The Shock Doctrine. No Logo. On Fire.
UBC Professor of Climate Justice.
๐ https://linktr.ee/naomiklein
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 โLife on a Little-Known Planet." Learn more at elizabethkolbert.com.
John Upton @johnupton.bsky.social Journalist in New Jersey focused on health, science and climate.
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.
Damian Carrington @dpcarrington.bsky.social Environment editor at The Guardian
Send info confidentially via Signal: dpcarrington.35
Or via this link๐
https://www.theguardian.com/tips
Robinson Meyer @robinsonmeyer.bsky.social Iโm the founding executive editor of Heatmap News, a contributing Opinion writer for The New York Times, and the cohost of the Shift Key podcast.
๐NYC
Bill McKibben @billmckibben.bsky.social Founder 350.org and Third Act, author The Crucial Years on substack https://billmckibben.substack.com/
Author of 21 books, beginning with The End of Nature
Dr. Elizabeth Sawin @bethsawin.bsky.social Director Multisolving Institute. She/her. Systems thinking, climate justice, and multisolving, with a sprinkle of gardens and the odd puns. @bethsawin on X
Jesse D. Jenkins @jessedjenkins.com Macro-energy systems engineering, optimization & policy. Associate professor at Princeton University. Leads the ZERO Lab. Co-hosts SHIFT KEY podcast. Time100 Next & TIME100 Climate honoree. More at linkedin.com/in/jessedjenkins & zero.lab.princeton.edu
Gretchen Goldman, PhD @gretchentg.bsky.social President @ucs.org. Previously: USDOT, White House OSTP, @500womensci.bsky.social. Environmental engineer. Mom. Cyclist. Public Transit Enthusiast. Views my own. She/her.
Sunrise Movement @sunrisemvmt.bsky.social Weโre a movement of young people fighting fascism to win a Green New Deal | Text GND to 88504 for updates ๐
linkin.bio/sunrisemvmt
Extinction Rebellion Global @xrglobal.bsky.social Global non-violent direct action movement demanding a response to the climate and ecological emergency.
More: https://linktr.ee/xrebellion
Fridays for Future @fridaysforfuture.bsky.social Don't stop believing.
Kees van der Leun @sustainable2050.bsky.social 40 years of experience in the energy transition. Building Common Futures, a new energy transition consultancy.
Posts about energy, climate, Ukraine & more.
Also on Mastodon.
Reposts not an endorsement, views my own. #EnergySky
Bryan White, MS Bio, MPH ๐งฌ @crvscience.com MS Biology, MPH, MS Cybersecurity |
Evolutionary Biologist ๐ชผ| SciComm โ๐ป|
Bioinformatician ๐ฅ๏ธ๐งฌ| Public Health ๐|
PNW ๐ฒ|
>Art ๐จ & T-shirts ๐:
https://crvscience.com
>Books ๐ โ๏ธ ๐๏ธ
https://www.amazon.com/dp/B0HCYP88H5
Covid19 @friendlycovid19.bsky.social Novel coronavirus looking for friends. Always evolving. Pronouns it/its.
Ziyad Al-Aly MD @zalaly.bsky.social Physician | Scientist | working on Long Covid
Anssi K. RTTP @kahanssi.bsky.social Kiinnostaa politiikka, talous ja innovaatiot, FFP2. HHJ, omat liberaalit nรคkemykset, ja Liberaalipuolue. MSocSc (Econ), Innovation Manager, RTTP, 20+ years exp.
Minisalkku @minisalkku.bsky.social Corrects other people's mistakes for a living
Tries to keep sourdough alive
ะกะปะฐะฒะฐ ะฃะบัะฐัะฝั
Esa Ahonen @esaahonen.bsky.social Musiikki, valokuvaus, erรค, simracing.
"There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self"