Simon Kuestenmacher @simongerman600.bsky.social German #geographer and #demographer in #Melbourne. I love and share #maps and #data that explain how the #world works.
Tim Donaghy @timdonaghy.bsky.social Research Director for Greenpeace USA. Lapsed astrophysicist, previously UCS.
Focused on climate, energy, environmental justice, science policy. Views are my own.
I'm @quinn43 on the birdsite. Also on Mastodon @timdonaghy@fediscience.org. he/him
Timmons Roberts @timmonsroberts.bsky.social Climate change social scientist. Collaborator, determined dreamer, dad. Director, @ClimateSSN.bsky.social And @climatedevlab.bsky.social
www.climatedevlab.brown.edu CSSN.org personal account; reskeets NE endorsement
Citizens' Climate Lobby @cclusa.org Want Congress to address climate change? We do too!
Current actions ➡️ cclusa.org/action
Nonpartisan | Nonprofit | #GrassrootsClimate
Andrew Simms @andrewsimms.bsky.social Political economist, campaigner & author. Co-author the original Green New Deal, devised Earth Overshoot Day & jointly, the Fossil Fuel Non Proliferation Treaty. Co-director New Weather Inst, other roles: https://www.newweather.org/about-us/andrew-simms/
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
Anne Applebaum @anneapplebaum.wsocial.eu staff writer @theatlantic.com and senior fellow @snfagora.bsky.social. author of GULAG, IRON CURTAIN, RED FAMINE, TWILIGHT OF DEMOCRACY and AUTOCRACY INC
https://linktr.ee/anneapplebaum
Ian Campbell @iancampbell.bsky.social Doctor, statistician, policy scientist, passionate about science-based decision making.
Carbon footprint & carbon budget calculators: http://carbonindependent.org
James Talarico @jamestalarico.bsky.social Texas State Representative, former middle school teacher, and Presbyterian seminarian running for the U.S. Senate to take power back for working people.
Karen Yourish @karenyourish.bsky.social Data and visual investigations at The New York Times
https://www.nytimes.com/by/karen-yourish
Ross Macfarlane @rossmacfarlane.bsky.social Advocate for democracy, climate action, & environmental justice. Board Chair with Way to Win Action Fund & Director with Sierra Club Foundation & Clean Energy Transition Institute, but takes here are only my personal views.
Pär Holmgren @parholmgren.bsky.social EUparlamentariker för Miljöpartiet. Senaste bok: "Det minsta vi kan göra är så mycket som möjligt och lite till". Föreläst om klimatfrågan sedan 1990-talet.🌍🌱
Shannon Osaka @shannonosaka.bsky.social climate *zeitgeist* reporter for @washingtonpost.com. Reach me on Signal: smosaka.27
Jacob Öberg @profjacob.bsky.social PhD @eui-eu.bsky.social; Professor in EU Law/Deputy HoD at @sdu.dk. EU & #brexit nerd. #Ukraine supporter. Member @ec.europa.eu's expert group on EU Crim Policy. Author of "Normative Foundations of EU Criminal Justice" @hartpublishing.bsky.social
The Green Party of England & Wales @greenparty.org.uk 💚 Real hope. Real change.
greenparty.org.uk
Promoted by Chris Williams on behalf of the Green Party of England and Wales c/o PO Box Green Party London SE1P 6YL
Marie-Louise Kristola @mlkristola.bsky.social Science reporter and Radio host at Swedish Radio. (Public Service)
Former Climate Correspondent.
https://sverigesradio.se/grupp/33748
🎤 Climate, environment, sustainability
🇫🇷Francophile
🇪🇸Working on my Spanish.
🎶Singer, dancer, jazz lover.
Sammy Roth @sammyroth.bsky.social I write Climate-Colored Goggles, a newsletter about climate & culture. Former L.A. Times climate columnist and Desert Sun energy reporter. Also hosted Boiling Point and The Hatch podcasts.
Find me at Dodger Stadium, Disneyland or hiking in the mountains.
Senator Bernie Sanders @sanders.senate.gov Sen. Sanders of Vermont, Ranking Member of the U.S. Senate Committee on Health, Education, Labor & Pensions, is the longest-serving independent in congressional history.
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
Climate Town @climatetown.bsky.social Solve climate change or die trying.
Full videos on YouTube👇
https://linktr.ee/climatetown
Rebellmammornasverige @rebellmammornaswe.bsky.social För barnens framtid. Vi vägrar titta bort och vi vägrar ge upp. En del av klimatrörelserna Mothers Rebellion och Extinction rebellion.
https://klimatkalendern.nu/
https://extinctionrebellion.se/bli-aktiv/grupper/rebellmammorna/
Environmental Politics @environmentalpol.bsky.social Account for journal Environmental Politics.
Sharing our publications, website guest posts.
No access to DMs - email us!
Website: https://environmentalpoliticsjournal.net/
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)
Stay Grounded @staygroundednet.bsky.social The international network campaigning against aviation - for a just mobility system.
https://stay-grounded.org/
Rodolphe Meyer aka Le Réveilleur @lereveilleur.eurosky.social Je fais de la vulgarisation scientifique sur les enjeux environnementaux et, majoritairement, les enjeux énergie/climat.
NowThis Impact @nowthisimpact.bsky.social Contact us at partnerships@nowthismedia.com
Paul Krugman @pkrugman.bsky.social Ex NY Times, now author of Substack Paul Krugman. Nobel laureate and, according to Donald Trump, "Deranged BUM". Also Research Professor at the City University of New York Graduate Center and senior scholar at the GC-CUNY Stone Center.
Karin Pettersson @karinp.bsky.social Kulturchef Aftonbladet/Culture Editor Aftonbladet. Prenumerera på mitt nyhetsbrev: https://www.aftonbladet.se/minsida/nyhetsbrev/
Robert Reich @rbreich.bsky.social Berkeley professor, former Secretary of Labor. Co-founder of @inequalitymedia.bsky.social and @imcivicaction.bsky.social.
Substack: http://robertreich.substack.com
Buy my new book: https://sites.prh.com/reich
Visit my website: https://rbreich.com/
Richard Tol @richardtol.bsky.social Professor Dr Richard S.J. Tol FREcon MAE
Economist interested in energy, environment, and climate
EBS19 (E4 B3 S12), H127
ORCID https://orcid.org/my-orcid?orcid=0000-0002-8012-3988- S Sverker Lenas @sverker.bsky.social
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
Trains Trams Tracks @trainstramstracks.bsky.social Everything about trains and trams (and subways) and tracks (rail and bicycle tracks) all across the world.
Plus some general transport related stuff.
Back on Track Italy 🇮🇹 @backontrackit.bsky.social https://back-on-track.eu/italy/
Refer to the online form to join us.
Here we post news and updates on our plan to Kickstart the BoT Italian group.
Se conversiamo in inglese anche i nostri amici @back-on-track.eu ci seguono e ovviamente anche in italiano.
Dr. Robert D. Bullard @drrobertbullard.bsky.social Director of Bullard Center Texas Southern University, professor, author of 18 books, NBEJN #HBCU Climate Change Consortium, #ClimateReality Board, AAAS, National Academy of Medicine, TIME Earth Award, Father of Environmental Justice, US Marine Corps Vet.
CNRS @cnrs.fr Organisme public 🇫🇷 de recherche pluridisciplinaire, le Centre national de la recherche scientifique c'est 33 000 personnes qui font avancer la connaissance. #HelloESR
Météo-France @meteofrance.com Météo-France sous le « ciel bleu », logique non ? Bienvenue sur notre compte officiel ! Retrouvez ici toutes nos actualités météo, climat et Vigilance.
Peter Alestig @peteralestig.bsky.social Author and climate journalist at Swedish daily Dagens Nyheter. peter.alestig@dn.se https://mondial.se/bok/varlden-som-vantar-vart-liv-i-klimatforandringarnas-sverige/
Yale Program on Climate Change Communication @yaleclimatecomm.bsky.social We conduct research on public climate change knowledge, attitudes, policy support & behavior. Posted events are not endorsements.
https://climatecommunication.yale.edu/
Stephan Lewandowsky @lewan.uk Professor of Cognitive Science, University of Bristol. Homepage: https://www.lewan.uk
Climate Outreach @climateoutreach.bsky.social Every year we work with hundreds of partners - from charities to governments to business - to help them navigate difficult climate communications and unlock more ambitious climate action.
https://climateoutreach.org/
David Fenton @dfenton.bsky.social Host of Agitation Nation, a podcast from the Fenton Forecast newsletter. Author of The Activist’s Media Handbook: Lessons from 50 Years as a Progressive Agitator fentonforecast.com
Max Boykoff @maxboykoff.bsky.social I research climate change thru several projects; Prof in Environmental Studies and CIRES Fellow at CU Boulder, IPCC AR6 WGIII Contributing Author. Born at 328 ppm. drawings credit: John Cook [big], Cal Brackin [small]
Senator Martin Heinrich @heinrich.senate.gov U.S. Senator for NM. Husband, dad, hunter. Former Engineer/Current energy nerd. Respects hard work, NM values, & anyone w/a freezer full of wild game.
Audrey Garric @audreygarric.bsky.social Journaliste au service #Planète au Monde. Rubrique #climat, COP, mobilisations, réchauffement et apocalypses diverses. Mes tweets sont en poils de yak.
Jingyi Li @jingyi-climate.bsky.social Researcher at Tyndall Centre for Climate Change Research (Manchester). Born in 365 ppm CO2. Dedicated to equitable energy transition. Currently interested in Geothermal.
Climate Cabinet Action @climatecabinet.org We help candidates run - and win - on climate. climatecabinet.org
Tim Baxter @timinclimate.naruresearch.com.au Australian climate researcher and advocate on unceded Wurundjeri Country. Burgeoning neo-luddite. Why am I becoming more anarchist with each passing climate disaster?
If you want to save the world: Let's have a chat.
http://www.naruresearch.com.au
Hayden Clarkin @thetransitguy.com I like trains and walkable neighborhoods.
https://linktr.ee/thetransitguy
@planetpossible.bsky.social @planetpossible.bsky.social 
Alexandria Ocasio-Cortez @aoc.bsky.social Waitress turned Congresswoman for the Bronx and Queens. Grassroots elected, small-dollar supported. A better world is possible.
ocasiocortez.com
Peter Kalmus @climatehuman.bsky.social Climate scientist working at NASA/JPL and lover of truth. Arrested for defending Earth. Opinions mine. 
Etienne Leblanc @leblancetienne.bsky.social Papa. Journaliste spécialisé en climat et environnement à Radio-Canada/CBC.
ESJ Lille
📝 https://linktr.ee/etienne.leblanc
➡️ https://ici.radio-canada.ca/profil/21833/etienne-leblanc?
Lisa Cox @lisacox.bsky.social Climate and Environment Correspondent at Guardian Australia. Tips: lisa.cox@theguardian.com
Michelle Ma @michellema.bsky.social Reporter @bloomberg.com | I cover all things climate tech | Read my stories: https://www.bloomberg.com/authors/AWTYlfwjEUk/michelle-ma | mma304@bloomberg.net | She/her | Opinions mine | Based in LA
Tin Fischer @herrfischer.bsky.social Journalist for stories and statistics
https://substack.com/@herrfischer 
François Gemenne @gemenne.bsky.social Climate and Migration
Academic affiliations:
Prof HEC Paris, Researcher FNRS, Director Hugo Observatory
Public service:
Lead author for the IPCC, President Scientific Council FNH, President Climate Voices.
Kathryn Harrison @profkharrison.bsky.social Climate policy researcher, UBC Professor, chemical engineer, political scientist, feminist, cyclist. Persistently hopeful, but losing patience!
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/
Ellen Stofan @ellenstofan.bsky.social Under Secretary for Science and Research at Smithsonian, former Chief Scientist of NASA, my posts are my own.
Kate Raworth @kateraworth.bsky.social Author of Doughnut Economics, Co-founder of Doughnut Economics Action Lab, Senior Teaching Fellow at Oxford Uni Environmental Change Institute. doughnuteconomics.org
Science Magazine @science.org Cutting-edge research, news, commentary, and visuals from the Science family of journals. https://www.science.org
Paul Voosen @voosen.me Dad of two. Earth, climate, and planetary science reporter @Science.org magazine. Mistrusts narratives; still writes them.
https://www.science.org/content/author/paul-voosen
https://sciencemastodon.com/@voooos
voosen@protonmail.com
Signal: @voosen.01
Germanwatch @germanwatch.bsky.social Germanwatch is an independent development, environmental, and human rights organisation that lobbies for sustainable global development. Sustainable development means socially equitable, ecologically sound, and economically stable. 🌍🇪🇺 germanwatch.org
Jonathan Koomey @jgkoomey.bsky.social Climate solutions, information technology, critical thinking skills. Born at 318 ppm. https://www.koomey.com
Isadora Wronski @isadorawronski.bsky.social Global Project Leader for Greenpeace’s campaign to #TaxTheSuperRich. Board member of the green think thank Cogito.- J Jan Ivar Korsbakken @jikorsbakken.bsky.social
Erin Brockovich @realerinbrockovich.bsky.social Consumer Advocate & Environmental Activist.
Founder of https://www.thebrockovichreport.com/
Military Mom & Young Grandmother 
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)
Dr. Raven the Science Maven @ravenscimaven.bsky.social I'm Raven Baxter, Ph.D. I'm molecular biologist and science educator who loves sharing science with the world! thesciencemaven.com
Göran Hådén @goranhaden.bsky.social Ordförande i den gröna tankesmedjan Cogito.
John Hanger @jrfhanger.bsky.social Support decarbonization, zero-CO2 generation & competitive markets. Former Commissioner of PA PUC, Secretary of PA DEP, Secretary of Policy & Public Advocate for consumers of Philadelphia's municipal utilities. Law degree.
Climate Action Tracker @climateactiontracker.org We're an independent scientific project tracking government climate action, measuring it against the Paris Agreement aim of "holding warming well below 2°C, and pursuing efforts to limit warming to 1.5°C." 
Our World in Data @ourworldindata.org Our World in Data is a free, nonprofit website with a mission to increase understanding of the world’s largest problems and drive informed action to solve them. Based out of Oxford University (@ox.ac.uk), founded by @maxroser.bsky.social.
Stockholm Resilience Centre @sthlmresilience.bsky.social Stockholm Resilience Centre explores how people and nature can live and develop on a planet under pressure.
Stéphane Foucart @sfoucart.bsky.social Journaliste à @lemonde.fr, parfois auteur. Dénigrement, idioties, insultes, mauvaise foi, RT et like de ce qui précède: je bloque sans sommation (NB: les comptes bloqués sur X seront bloqués par défaut sur BS). RT ≠ approbation.
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
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
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.
IPCC @ipcc.bsky.social Intergovernmental Panel on Climate Change
RealClimate feed @realclimate.org Climate Science from Climate Scientists since 2004
https://www.realclimate.org
Niklas Höhne @niklashoehne.bsky.social Climate policy scientist, cofounded NewClimate Institute, former professor at Wageningen, IPCC author since 2003. The views shared here are my own.
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.
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
The Man in Seat 61 @seatsixtyone.bsky.social Mark Smith, the Man in Seat 61, the chap who runs that train travel site http://seat61.com. YouTube: http://youtube.com/c/seat61.
RadReduction (Larry Edwards) @radreduction.bsky.social Follow me on radical reductions of climate harming emissions (especially from flying, cruise). Engineer. Interests: climate, policy, overtourism.
My location: Under the global cloud of GHGs.
ResearchGate: https://www.researchgate.net/profile/Larry-Edwar
Project Drawdown @projectdrawdown.bsky.social 🌍 The world’s leading guide to science-based climate solutions.
Visit www.drawdown.org to learn more
Jessica Green @greenprofgreen.bsky.social Immigrant. Poli sci prof at U of Toronto. Politics of climate change, carbon markets, oceans, NGOs, enviro politics. Author of Existential Politics, out now: tinyurl.com/ybephkfb. Occasional ranter. greenprofgreen.com
Malte Meinshausen @meinshausen.bsky.social The University of Melbourne & Climate Resource
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
BONUS @thedisproof.bsky.social Science comms and education (Presented research at UN Climate conference). I debunk human induced climate change denial. @TheDisproof on twitter. Youtube https://youtube.com/@thedisproof?si=GpamUu43gBmmZyya Opinions mine, Facts from science.
Jessica Elgot @jessicaelgot.bsky.social I'm the Guardian's deputy political editor in Westminster.
Story? Email - jessica.elgot@theguardian.com
Signal - jessicaelgot.51
Always #lufc
https://www.theguardian.com/profile/jessica-elgot
Kristian Steensen Nielsen @kristiansn89.bsky.social Assistant Professor @ Copenhagen Business School
Behavior change | climate change mitigation | environmental psychology | biodiversity conservation
World Bollard Association™️ @worldbollardassoc.bsky.social The official Bluesky account of the World Bollard Association™️. MERCH STORE - https://worldbollardassociation.team-togs.com/shop/storeorderform.php
Climate Action Network (CAN) Europe @caneurope.org Europe's leading NGO coalition fighting dangerous climate change!
Carbon Tracker Initiative @carbontracker.bsky.social Carbon Tracker is an independent financial think tank that carries out in-depth analysis on the impact of the energy transition on capital markets and the potential investment in high-cost, carbon-intensive fossil fuels.
Visit: https://carbontracker.org
Extreme Temperatures Around the World @extremetemps.bsky.social Climatologist & Weather Historian.
www.mherrera.org/temp.htm
https://en.wikipedia.org/wiki/User:Maxcrc
Weather news. Climatic statistics and records. By M. Herrera
@extremetemps in all networks
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