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/
@lizpayton.bsky.social @lizpayton.bsky.social 
Venkatesh Srinivas @signalvsnoise.bsky.social Engineer @Google, Co-Founder @sciencefoundation.bsky.social; occasional climate & philanthropy & bikes
https://ops101.org
Peter Sagal @petersagal.bsky.social I make Dad jokes on NPR and also write books and other things. 
Kai Ryssdal @kairyssdal.bsky.social Dad, husband. IPAs. Soccer referee, trail runner, mountain biker. Veteran.
Sara Hastings-Simon 🇨🇦 @shastingssimon.bsky.social Currently on partial medical leave and Associate professor, Dept of Earth, Energy, and Environment, University of Calgary; co-director Electricity Centre; energy/mid-transition/carbon/innovation policy + bikes.
Georgetown Climate Center @georgetownclimate.bsky.social Working on climate adaptation and mitigation policy at the intersection of federal, state, and local government. Based at Georgetown Law. More at georgetownclimate.org
Bill Travis @climaterisks.bsky.social Professor of Geography CU-Boulder studying climate adaptation and disasters
Brad Lander @bradlander.bsky.social Democratic nominee for Congress in NY-10. Dad Lander. Love unions, justice, seltzer, and NYC. #FightDontFold
https://linktr.ee/bradlander
Iris van Rooij 💭 @irisvanrooij.bsky.social Professor of Computational Cognitive Science | Dept. of Cognitive Science & Artificial Intelligence | @Iris@scholar.social on 🦣 | http://irisvanrooijcogsci.com | she/they 🏳️🌈
Dr Melissa Marselle @melissamarselle.bsky.social Environmental Psychology Lecturer, Univ of Surrey. Expert in the mental health benefits of biodiversity & the psychology of sustainability. Interdisciplinary. Co-chair @bpsenvpsych.bsky.social. Assoc. Editor People and Nature & Env Psych Research
Mark Chadbourn @chadbourn.bsky.social Everything is Connected.
Journalist, novelist, screenwriter. Always looking for stories. LDN, NYC, LA
Support my work at: https://substack.com/@chadbourn
Buy Me A Coffee: coff.ee/chadbourn
Jon Cryer @mrjoncryer.bsky.social No kings
Actor/Producer he/him
Linda Shi @lindashi.bsky.social Prof at Cornell CRP, director of Adaptive Land Lab, climate adaptation, property, justice researcher. Momx2
Nieman Lab @niemanlab.org We are the Nieman Journalism Lab, part of the Nieman Foundation at Harvard. We're trying to figure out the future of news.
🔗 https://www.niemanlab.org/
Paul Higgins @phiggins.bsky.social Climate scientist; global change biologist; advocate of evidence-informed decision-making and democracy.
Justin Wolfers @justinwolfers.bsky.social Econ professor at Michigan ● Senior fellow, Brookings ● Intro econ textbook author ● Chief economist & Deputy platypus https://newsletter.platypuseconomics.com ● Find me: https://linktr.ee/justinwolfers
Mary Feeney @mkfeeney.bsky.social Professor, traveller, cyclist, skater, science policy junkie. Reluctant Phoenician. Interested in all things public sector
erin mccann @mccanner.bsky.social Weather at The New York Times. Now in SF after four years in London. Brooklyn before that.
Find me: https://instagram.com/mccannercat
Toni Klemm @toniklemm.bsky.social Sustainable agriculture under climate change, living lab research at @zalf.bsky.social , #scicomm. Runner. Occasional blogger. He/him.
Carole Cadwalladr @carolecadwalla.bsky.social Investigative journalist. Ex-Guardian/Observer. Now co-founder brand new all-women journalist collective, www.thenerve.news. Tech justice stuff: www.the-citizens.com. Personal newsletter: www.broligarchy.substack.com
David Malakoff @davidmalakoff.bsky.social Now: Lead Editor, Science's AI in Science Reporting Initiative (@science.org). Then: Freelance journalist, NPR Science Desk, river conservationist, College of the Atlantic (1986). Birder. Whitewater kayaker. Proud dad of 3 kids. Signal: DMalakoff.
Keith Boykin @keithboykin.bsky.social Author. Independent Journalist. Political Commentator. Subscribe to my Substack to support.
Mark Jacob @markjacob.bsky.social Former metro editor at Chicago Tribune and Sunday editor at Chicago Sun-Times. Co-author of 11 books, mostly on history. Writer of the Stop the Presses newsletter at www.stopthepresses.news. Subscribe!
Naomi Klein @naomiaklein.bsky.social "End Times Fascism" book coming September 2026.
Doppelganger. This Changes Everything. The Shock Doctrine. No Logo. On Fire.
UBC Professor of Climate Justice.
🔗 https://linktr.ee/naomiklein
Dr. Kristina Hill ☠️ 🏳️🌈 thinks this is a bad timeline @kzhill.bsky.social Prof. at Berkeley, research on design for adaptation to flooding, air quality, justice, and biodiversity. So committed to DEI that there's no going back. Interested in conversations about the long run of history and human adaptation to env change.
Karen K. Ho @karenho.bsky.social Writer, reporter, and floofy dog owner. Previously at ARTnews, Business Insider, Quartz and other outlets. Based in Toronto.
Joe Walsh @walshfreedom.bsky.social Former GOP Congressman. Ex‑Tea Partier turned relentless anti‑Trump truth‑teller. Want the unfiltered takes the cable shows won’t touch? Read & spar with me on Substack 👉 https://substack.com/@socialcontractwithjoewalsh
Daniel Raimi @danielraimi.bsky.social Dad and husband. Energy and environmental policy at RFF and UMich. Host a podcast, play the guitar, mix tasty drinks. 
Rachel Maddow @maddow.bsky.social Mondays at 9pmET on MS NOW
MaddowBlog.com
Brenna Clarke Gray @brennacgray.bsky.social She/her. Li'l EdTech; big mouth. Settler. Feminist. Reader, writer, teacher, scholar, doozer.
Podcasts too much: creator of Community of Praxis; co-host of @hkhspod.bsky.social.
Opinions yours.
https://sabbaticast.brennaclarkegray.ca
James Medlock @jdcmedlock.bsky.social More good things for everyone. Public sector appreciator. Tax and welfare policy knower. Hyperinflation doubter.
Holden Thorp @holdenthorp.bsky.social Editor-in-Chief of Science and Professor of Chemistry and Medicine at George Washington University. Opinions not those of AAAS. https://holdenthorp.substack.com/about #ActuallyAutistic
Chloe N East (she/her) @chloeneast.bsky.social Associate Professor in Economics at University of Colorado. I study immigration, the safety net, and inequality
Affiliated with Hamilton Project at Brookings, NBER, IRP, IZA, United Campus Workers Colorado
https://www.chloeneast.com
Opinions my own
Schmidt Ocean Institute @schmidtocean.bsky.social Boldly exploring our unknown Ocean
Hillary Rodham Clinton @hillaryclinton.bsky.social Doting grandmother, among other things.- K The Keeling Curve @keelingcurve.bsky.social Official daily update on atmospheric CO2 levels in the post-400 ppm era from Scripps Institution of Oceanography's iconic Keeling Curve.
Ella Simone @ellasimone.bsky.social Writing Studies & community engagement ~ immigrant & refugee rights ~ food justice ~ race & equity in higher ed ~ Lake Michigan cyclist 🚴🏽♂️ (photo: Sycamore Gap tree; mural: Chinatown SF)
Clint Smith @clintsmithiii.bsky.social Author of How the Word Is Passed, Above Ground, and Counting Descent. Writer, The Atlantic.
Timothy Snyder @timothysnyder.bsky.social Temerty Professor of Modern European History, Munk School, University of Toronto; Permanent Fellow, IWM Vienna; Emeritus Levin Professor, Yale. Author of "On Freedom," "On Tyranny," "Our Malady," "Road to Unfreedom," "Black Earth," and "Bloodlands"
Carl Quintanilla @carlquintanilla.bsky.social 26+ years at @CNBC and @NBCNews / @WSJ alum / Peabody, DuPont, Murrow & Emmy winner
Out of Context Tracers in the Sea @tracers-in-the-sea.bsky.social I am a good bot posting excerpts from the seminal text by W.S. Broecker and T-H Peng for you. Many oceanographers started their journey of ocean discovery with this text
Conor Lamb @conorlambpa.bsky.social Lawyer for people at Kline & Specter. Teach @Duqklinelaw, “Faith and Democracy.” Former representative, Marine, prosecutor. Town hall participant.
Charles Ornstein @charlesornstein.bsky.social Managing editor/local at ProPublica, past prez of AHCJ, Detroit Lions fan. Email: charles.ornstein@propublica.org. Posts are my own.
Christian Fong @christiantfong.bsky.social Now: decarbonizing the electricity sector with
@rockymtninst.bsky.social | Then: @INDems @HawaiiSenate | Always: @UCBerkeley | all views are my future dog’s
Rick Steves @ricksteves.bsky.social Guidebook author, TV & radio host, business owner, Lutheran, and NORML Board Member. Fanatically positive and militantly optimistic.
Science Friday @scifri.bsky.social Entertaining & educational conversations about science, tech, + more. Hosted by Ira Flatow and Flora Lichtman. From WNYCStudios.
Irina Marinov @irinaclimatemom.bsky.social mom, oceanographer, climate scientist, prof at Univ of Pennsylvania, West Philly resident. Romanian to start with, Middlebury BA, Princeton PhD, then MIT and WHOI.
KenOliveLab @kenolivelab.bsky.social Ast. Dean for Graduate Curricula and Asc. Prof. of Medicine at Columbia University Vagelos College of Physicians and Surgeons. Comments are my own and do not reflect Columbia positions.
Dedicated to educating scientists and curing pancreatic cancer. 
Mary Anne Franks @maryannefranks.bsky.social Law Professor at George Washington Law. President of the Cyber Civil Rights Initiative. Author of Fearless Speech (2024) and The Cult of the Constitution (2019). First Amendment, civil rights, technology, criminal law, family law, firearms law.
Sarah Cooley @co2ley.bsky.social Ocean advocate, community builder, climate scientist. I make sure the ocean interior is healthy so you don't have to. 
Susie Park-Kelly @susieparkkelly2025.bsky.social Humanitarian, humanist, proudly woke, hula teacher, foodie, nature lover, and mother of 2 amazing humans.
Brigitta Rongstad Strong @brongstad.bsky.social Communications specialist and science writer @cires.colorado.edu | PhD-trained geologist | personal assistant to 3x🐕 | she/her
Mark Copelovitch @mcopelov.bsky.social Professor of Political Science & Public Affairs & Director of European Studies, University of Wisconsin - Madison. International political economy, international relations, & international finance. 🇺🇸 & 🇪🇺 politics & economic policy. Tradeoffs in everything.
Colin Carlson @colincarlson.bsky.social Climate change, global health security, science diplomacy, and good bad futures • Yale • carlsonlab.bio • viralemergence.org • he/they
@weathersullivan.bsky.social @weathersullivan.bsky.social Bloomberg weather reporter, not a meteorologist, a one-time follower of higher ed., a photographer of wild things and places and anything with wheels or wings. No endorsements. Email: bsullivan10@bloomberg.net
@BKSullivan61.03 on Signal
Aaron Weiss (no relation) @aweiss.bsky.social Public lands guy. Wannabe photographer, baker, occasional piano player. Denver-based.
Public lands, tech, climate, food, Colorado
Signal: @aweiss.77
Dr. Jane Zelikova @jzeli.bsky.social Ecologist, consumer of gummy bears, adventure pup and toddler wrangler, socialist
@scelmendorf.bsky.social @scelmendorf.bsky.social 
Jonas Meckling @jonasmeckling.bsky.social Professor, UC Berkeley | Climate Fellow, Harvard Business School
climate and clean energy policy | www.jonasmeckling.com
MethaneSAT @methanesat.bsky.social First methane-tracking satellite launched by an NGO. While contact is lost, the mission continues: advancing tech, sharing data, cutting emissions. A project of Environmental Defense Fund.
Galen McKinley @oceancarbon.bsky.social Ocean carbon, global carbon, climate with models and ML. Professor at Columbia DEES and Lamont-Doherty Earth Observatory.
Kendi Davies @kfdavies.bsky.social Ecologist, University of Colorado. Fire, forests, biodiversity, invertebrates. The Wog Wog experiment.
Roxane Gay @roxanegay.bsky.social https://linktr.ee/roxanegay
Writer, editor, publisher, professor. Some people call me a bad feminist and by some people I mean me.
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
Ken Buesseler @cafethorium.bsky.social Marine radiochemist- the biological carbon pump, pie and coffee make life good
David King @cityplanning.bsky.social Associate Professor of Urban Planning, Arizona State University
I study transport, land use, local governance.
Cityplanning.01 on signal.
Four freedoms.
Google Scholar page: https://scholar.google.com/citations?user=uFu5Z2YAAAAJ&hl=en
Petra Boynton @petraboynton.bsky.social #Safety and #wellbeing advocate and creator of the #PEEPSS Model.
Social Psychologist. #Methodologist. Sometime #AgonyAunt. Advice giving as praxis. Critical #MentalHealth. Lives by the sea.
Come for a #ResearchTip, maybe ask a question, stay for cat pics
Melissa Birchard @melissabirchard.bsky.social Energy regulatory lawyer by trade. Loves PUCs and pond skating. Grew up and living in MD. I lead climate mitigation at the Georgetown Climate Center but views are my own. #cleanenergy #democracy
Chris Hayes @chrislhayes.bsky.social Bronx boy. Cubs fan. Dad, husband, writer, podcaster and cable news host.
The Sirens’ Call: How Attention Became the World’s Most Endangered Resource out now.
https://sirenscallbook.com/
Adam Kinzinger @adamkinzinger.substack.com Dad. Husband. Former GOP congressman. Voted to impeach Trump. Now fighting for our democracy. Lt. Col. Air National Guard (ret). Founder of Country First
Adamkinzinger.komi.io
Adamkinzinger.com
Common Cause @commoncause.org We are the People's Lobby. Holding power accountable for 55+ years.
Join us - https://www.commoncause.org/
The New Republic @newrepublic.com Ideas. Influence. Impact.
TNR is a leader in the continuing fight for American democracy and a must-read if you want to know the ideas impacting politics and culture today.
Follow us: https://profile.google.com/@newrepublic
U.S. Senator John Fetterman @fetterman.senate.gov United States Senator fighting for the people of the Commonwealth of Pennsylvania.
www.fetterman.senate.gov
Pete Buttigieg @petebuttigieg.bsky.social Husband, dad, veteran, writer, and proud Midwesterner. 19th US Secretary of Transportation and former Mayor of South Bend.
Andy Miller @andymiller24.bsky.social Retired from EPA Office of Research and Development, focused on climate change issues. Active with US Global Change Research Program, interested in climate intervention. University of Arizona, North Carolina State University, mechanical engineer
Josh Marshall @joshtpm.bsky.social Founder & reigning monarch at TPM. Lapsed historian. Hand tool woodworker. Jew.
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.
The Guardian @theguardian.com The need for independent journalism has never been greater. Become a Guardian supporter https://support.theguardian.com
🇺🇸 Guardian US https://bsky.app/profile/us.theguardian.com
🇦🇺 Guardian Australia https://bsky.app/profile/australia.theguardian.com
Defector @defector.com The last good website.
The Xylom @thexylom.com Take root and flourish in a healthier planet.
We cover everything you need to know about the world's most pressing health and environmental disparities.
Get newsletter: newsletter.thexylom.com
Donate: https://fnd.us/sustain-the-xylom?ref=cr_1EHOhb
404 Media @404media.co it's a website (and a podcast, and a newsletter) about humans and technology, made by four journalists you might already know. like and subscribe: 404media.co
Hell Gate *subscribe today!* @hellgatenyc.com A news outlet owned & run by journalists covering NYC: https://hellgatenyc.com
Subscribe: https://hellgatenyc.com/membership/
Sign up for our free newsletters: https://hellgatenyc.com/newsletter/
Mindy Weisberger @laminda.bsky.social Science writer/editor, bylines at CNN, Live Science, SciAm. Previously at Scholastic and the American Museum of Natural History. WGAE member. She/her.
Author of Rise of the Zombie Bugs https://press.jhu.edu/books/title/53677/rise-zombie-bugs
The Flytrap @theflytrapmedia.com Worker-owned, community-oriented intersectional feminist journalism to unfuck your algorithm.
🔗 theflytrapmedia.com
The 51st @51st.news Information with representation, by and for D.C. residents.
Worker-led nonprofit newsroom, funded by readers like YOU.
Become a member today: https://51st.news/signup
🌐 https://51st.news
TPM @talkingpointsmemo.com Talking Points Memo (TPM) is an independent news organization that publishes reporting and analysis about American politics, public policy and political culture. https://talkingpointsmemo.com/
Assigned Media @assignedmedia.org An independent news website about trans issues, by trans journalists. assignedmedia.org
Support our work: https://www.assignedmedia.org/support
Bolts @boltsmag.org A publication that covers the nuts and bolts of political change: Boltsmag.org
Capital B @capitalb.bsky.social News we need. Join us at http://capitalbnews.org. Local newsrooms in Gary and Atlanta:
@capitalbgary.bsky.social & @capitalbatl.bsky.social
Mississippi Free Press @mississippifreepress.org Women-run nonprofit/nonpartisan newsroom reporting causes, solutions, context since 3/20. Mantra: "Do the right thing and wait."
Give: mfp.ms/donate Props: mfp.ms/impact
Kansas Reflector @kansasreflector.com Kansas Reflector is a nonprofit news operation providing in-depth reporting, diverse opinions and daily coverage of state government and politics.
Baltimore Beat @baltimorebeat.bsky.social Baltimore Beat is the city’s paper of record. A Black-led, Black-controlled nonprofit newspaper and online media outlet for all of Baltimore.
DONATE: http://baltimorebeat.com/neighborhood
Marisa Kabas @marisakabas.bsky.social independent journalist, thehandbasket.co
email: marisa@thehandbasket.co
signal: marisakabas.04
States Newsroom @statesnewsroom.com Fair. Fearless. Free.
The nation's largest state-focused nonprofit news organization
More about us: statesnewsroom.com
Latest news: newsfromthestates.com
The Real News Network @therealnews.com Independent, viewer-supported news network. No corporate funds or advertising money.
🏠 https://therealnews.com
📺 https://youtube.com/@therealnews
Democracy Docket @democracydocket.com Leading digital news and information platform covering voting rights, elections, and the courts — from an unapologetically pro-democracy standpoint.
Newsletters: https://demdock.com/3T3Owjg
Reporting: democracydocket.com
Founded: @marcelias.bsky.social
Alaska Public Media @alaskapublic.org News from Alaska Public Media and our partner stations across the state. Alaska Public Media is a NPR and PBS station.
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