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
Saganism @sagan.bsky.social Science. Philosophy. The cosmic perspective.
Brian Schatz @schatz.bsky.social United States Senator for Hawaii. Climate hawk. Chief Deputy Whip. 
Dr. Aaron Thierry @thierryaaron.bsky.social Research analyst, ASRA. PhD candidate at Cardiff University researching the role of science and scientists in the climate movement. PhD in Ecology. Climate communications.
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
Rick Thoman @alaskawx.bsky.social Climate specialist with ACCAP/IARC at UAF, highlighting Alaska and Arctic climate, environment & Indigenous cultures. Opinions are my own.
Alaska and Arctic Climate Newsletter: https://alaska-arctic-climate.beehiiv.com
Benjamin Cook @dustybowl.bsky.social Climate scientist studying drought, land surface processes, climate extremes. https://www.drbenjamincook.net/
Erin Sikorsky @erinsikorsky.bsky.social Director, Center for Climate and Security, DC
Former US Nat'l Intelligence Council
Wisconsinite at heart
Posts my own
Hannah Ritchie @hannahritchie.bsky.social Deputy Editor, Our World in Data
Senior Researcher, University of Oxford
Climate, energy, environment, all things data.
Damian Carrington @dpcarrington.bsky.social Environment editor at The Guardian
Send info confidentially via Signal: dpcarrington.35
Or via this link👇
https://www.theguardian.com/tips
James Dinneen @jamesdinneen.bsky.social Science journalist reporting on Earth for @nature.com; writing book about the deep interior of Earth for @vikingbooks.bsky.social. Send tips via Signal @jamesnesw.44. Email is easy to find. Newsletter: northeastsouthwest.substack.com- F Fiona Harvey @fionaharvey.bsky.social Environment editor at the Guardian newspaper, full-time environment writer since 2004
Josh Gabbatiss @joshgabbatiss.bsky.social Associate editor at Carbon Brief 🐸
josh.gabbatiss@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
Leo Hickman @leohickman.carbonbrief.org Editor and director, Carbon Brief
https://bsky.app/profile/carbonbrief.org
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/
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Dave Vetter @davidrvetter.bsky.social Climate and sustainability writing and communications; duck monitor.
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.
John Bistline @bistline.bsky.social Head of Science at Watershed | Energy systems modeling, economics, policy | IPCC, NCA, Stanford/CMU alum | Views my own
Sierra Club @sierraclub.org Explore, enjoy, and protect the planet!
sierraclub.org
World Wildlife Fund @worldwildlife.org Nature gives us so much. Now is the time to give back. Nature Needs Us Now. WWF-US
IPCC @ipcc.bsky.social Intergovernmental Panel on Climate Change
New Scientist @newscientist.com The best place to find out what’s new in science – and why it matters.
Rebecca Leber @rebleber.bsky.social investigating the fossil fuel industry. editing @pointsourcenews.org. board member of Society of Environmental Journalists.
rleber@pointsourcenews.org
subscribe --> https://pointsourcenews.org/introducing-point-source/
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
Rebecca John @rebeccajohn.bsky.social Investigative climate reporter, writer and award-winning documentary film maker. Freelance. Lead author, The Fraud of "Clean" Natural Gas (July 2026) for Center for Climate Integrity.
AGU (American Geophysical Union) @agu.org Official AGU: supporting 500k+ Earth & space science advocates.
🌏 🚀 🔬
Save the Date for #AGU26 in San Francisco, CA, 7-11 December, 2026.
Climate Science Legal Defense Fund @csldf.org The Climate Science Legal Defense Fund protects the scientific endeavor. Email lawyer@csldf.org if you’re a scientist in need of free legal advice.
NOAA Climate.gov @climate.noaa.gov Toward a Climate-Smart Nation. The official NOAA account for Climate.gov hosted by the Climate Program Office. Follow for #climate news, #science, #data, resources, and more!
Environmental Defense Fund @envdefensefund.bsky.social Using bold solutions to build a cleaner, healthier world. We're finding the ways that work.
Philip Bump @pbump.com Hearst data editor and columnist
Formerly: Washington Post
Book: "The Aftermath: The Last Days of the Baby Boom and the Future of Power in America"
Newsletter: www.ctinsider.com/newsletters/data/
Email: hello@pbump.com
Signal: pbump.11
Ian James @ianjames.bsky.social Reporter focusing on water and climate change, Los Angeles Times. ian.james@latimes.com
Signal: ianjames.77
David Wallace-Wells @dwallacewells.bsky.social New York Times Opinion writer and New York Times Magazine columnist. Newsletter on climate and the messy future (https://tinyurl.com/dwwnyt). Author of The Uninhabitable Earth.
https://www.nytimes.com/newsletters/david-wallace-wells
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/
Jonathan Vigh @skywatcher77.bsky.social PhD atmospheric scientist working on hurricanes and weather- and climate-driven risks. Pro-Constitution, pro-democracy, and politically independent. Enrolled member of Seneca Nation of Indians. Wildfire survivor (#MarshallFire). Views mine.
Dr. Jeff Masters @drjeffmasters.bsky.social Extreme weather and climate change expert writing for Yale Climate Connections. Co-founder, Weather Underground; former hurricane hunter.
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/
Bulletin of the Atomic Scientists @thebulletin.org The best thinking on existential threats since 1945. Nuclear risk, climate change, and disruptive technologies. We set the #DoomsdayClock. thebulletin.org
Astronomy 🔭 @astronomy.bsky.social Facts, Information, and Images related to Space and Astronomy.
Copyright with respective people and organizations shared for educational purposes.
Seth Klein @sethdklein.bsky.social Past Team Lead, Climate Emergency Unit; author of "A Good War: Mobilizing Canada for the Climate Emergency"; columnist w/ Canada's National Observer; former social justice think tank director
https://www.sethklein.ca
https://sethdklein.substack.com
George Monbiot @georgemonbiot.bsky.social Ungainly on land
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.
Amitav Ghosh @amitav.bsky.social Novelist and non-fiction writer; author of 'The Ibis Trilogy', 'The Great Derangement', 'Gun Island', 'The Nutmeg's Curse' and 'Smoke and Ashes'. 
Mike Berners-Lee @mikebernerslee.bsky.social Author of A Climate of Truth, There is No Planet B and How Bad are Bananas?
Founder of https://bsky.app/profile/smallworldconsult.bsky.social
Prof at Lancaster University. Work on climate, sustainable food & land and wider challenges of the Anthropocene.
Alice Larkin @aliceclimate.bsky.social Prof in climate science & energy policy, interests in aviation & shipping mitigation. >20 years in the interdisciplinary Tyndall Centre. Born at 330ppm.
John Barrett @jrbarrett.bsky.social Professor in Energy and Climate Policy, University of Leeds
Home page: https://environment.leeds.ac.uk/see/staff/1146/professor-john-barrett-obe
Karlheinz Erb @karlheinzerb.bsky.social Associate Professor @BOKU_SEC.
@BOKUvienna. Social ecology, sustainability science, land system science, land use and climate change
Marshall Burke @marshallburke.bsky.social unsolicited commentary on economics and the environment. Stanford prof, +co-founder AtlasAI
Tamsin Edwards @flimsin.bsky.social Professor of Climate Change, King's College London. Climate science, communication, recovering/managing ME/CFS. 🏳️🌈 🇦🇶 🧊
Andy Purvis @andypurvisnhm.bsky.social Co-lead of the Biodiversity Futures Lab and PREDICTS project at the Natural History Museum and Imperial College in London, UK. Working for a nature-positive future with an ADHD present. Views my own. He/him.
Joelle Gergis @joellegergis.bsky.social Climate scientist and writer. IPCC AR6 WG1. Honorary Associate Professor of Climate Science at the University of Melbourne. Author of 'Sunburnt Country', ‘Humanity's Moment' and ‘Highway to Hell’. www.joellegergis.com
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.
James Hansen @drjamesehansen.bsky.social Director of Climate Science, Awareness and Solutions at Columbia University http://csas.earth.columbia.edu | Formerly Director of NASA GISS | jimehansen.substack.com
columbia.edu/~jeh1/
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
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
Hope Jahren @realhopejahren.bsky.social The scientist formerly known as Lab Girl.
I write books: https://www.penguinrandomhouse.com/authors/2111914/hope-jahren/
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 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.
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
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.
Glen Peters @glenpeters.bsky.social Energy, emissions, & climate
CICERO Center for International Climate Research, Oslo, Norway
https://cicero.oslo.no/en/employees/glen-peters
Carlos M Duarte @carlosduartephd.bsky.social A marine scientist striving for a healthy ocean… worried about the broken basis of humanism
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
Pierre Friedlingstein @pfriedling.bsky.social Born at 321 ppm. Climate & Carbon Cycle Scientist. Prof @UniofExeter Directeur de Recherche @CNRS @GlobalCarbonProject
Bluesky @bsky.app official Bluesky account (check username👆)
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