Jane Flegal @janeaflegal.bsky.social Executive Director, Blue Horizons Foundation. Formerly @Stripe Climate/Frontier, @WhiteHouse Climate, @Hewlett_Found, Spitzer Trust. PhD @ESPM_Berkeley. Views my own.
By Cory Doctorow (GPG 0xBF3D9110957E5F4C) @doctorow.pluralistic.net I post long threads. Writer (sf novels, etc); blogger (pluralistic.net); activist (eff.org). Latest book: "The Reverse Centaur's Guide to Life After AI" Buy my books (DRM-free!) at craphound.com/shop.
Emmett Macfarlane 🇨🇦 @emmettmacfarlane.com Professor of political science. Author. Dad.
Constitutional law, rights, governing institutions, and Canadian politics.
Books: Legislating under the Charter; Constitutional Pariah; Governing from the Bench
Charlotte Clymer @charlotteclymer.bsky.social Writer. Lesbian. Texan. Veteran. Hoya. Jesus Fan. She. | cmclymer@gmail.com | I write about politics, religion, and culture in my award-winning blog/newsletter Charlotte's Web Thoughts: charlotteclymer.substack.com
Gernot Wagner @gwagner.com Climate economist, Columbia
https://gwagner.com
It's pronounced "juggernaut" without the "jug"
Rhodium Group @rhg.com Rhodium Group is an independent research provider, combining policy expertise and data-driven analysis to help decision-makers navigate global challenges. 
Mike Morrice @morricemike.bsky.social Running to lead @canadiangreens.bsky.social, previous Green Party of Canada Deputy Leader, Kitchener Centre Green MP 2021-25.
-
Block 2, Haldimand Tract
https://linktr.ee/morricemike
Catherine McKenna @cathmckenna.bsky.social 🌱 CEO, Climate & Nature Solutions; Chair UN Net Zero.
🇨🇦Former Minister of Environment & Climate
🏃♀️Author, Run Like a Girl
Order your copy today ⬇️
www.catherinemckenna.ca
📩 contact@climateandnature.com
Jigar Shah @jigarshahdc.bsky.social husband, dad, focused on elevating American entrepreneurs and innovators to achieve energy abundance by deploying at scale. It's simple, not easy. https://www.linkedin.com/in/jigarshahdc/
Micah @rincewind.run Recovering forum poster, politics doomer, basketball nerd. I write code for a living. He/him. Views entirely my own.
Deputy Chair of the Ankh-Morpork Posters’ Guild
🏳️⚧️ rights are human rights
City of Kitchener @citykitchener.bsky.social Official home of Kitchener 🏠
Rachel Gilmore @rachelgilmore.bsky.social Your least favourite person's least favourite award-winning journalist✨
Follow for short-form videos on issues that matter! 💅
SUBSCRIBE: rachelgilmore.substack.com/
https://linktr.ee/rachel_gilmore
Jonathan Koomey @jgkoomey.bsky.social Climate solutions, information technology, critical thinking skills. Born at 318 ppm. https://www.koomey.com
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
Michael Liebreich @mliebreich.bsky.social Host @CleaningUpPod. CEO Liebreich Associates. Managing Partner Ecopragma Capital. Founder, Contributor @BloombergNEF. Ex Board TfL, Board of Trade. Olympian. Don't message me - I'm not prepared to give away personal data to prove my age. Srsly BlueSky!
Mehdi Hasan @mehdirhasan.bsky.social Editor and CEO, Zeteo
Author, ‘Win Every Argument’
British-American
Michael Grunwald @mikegrunwald.bsky.social Author of WE ARE EATING THE EARTH https://www.amazon.com/We-Are-Eating-Earth-Climate/dp/1982160071 & THE SWAMP https://www.amazon.com/Swamp-Everglades-Florida-Politics-Paradise/dp/0743251075/ NYT contributor. Annoyed Floridian. michaelgrunwaldbooks.com
Ember @ember-energy.org Global energy think tank accelerating the clean energy transition with data and policy #CleanPower info@ember-energy.org
https://ember-energy.org/
Marc Elias @marcelias.bsky.social Founder @democracydocket.com. Chair of Elias Law Group. My dog's name is Blue.
Climate Science Breakthrough @climatescibreak.bsky.social 🚨 Helping climate science break through to many more people - and unlock action. Brainchild of climate comms lab @utopiabureau.bsky.social and campaigner @nickoldridge.bsky.social https://www.climatesciencebreakthrough.com
Kevin M. Kruse @kevinmkruse.bsky.social Historian: White Flight; New Suburban History; Fog of War; One Nation Under God; Fault Lines; Voter Suppression; Myth America. CAMPAIGN TRAILS: campaign-trails.ghost.io
Matt Rodrigues @mattjrodrigues.bsky.social Running to continue serving Kitchener on Regional Council
www.mattrodrigues.ca
Mike Sowden @mikeachim.bsky.social Writer (on science, travel & curiosity), Yorkshireman, tedious enthusiast, professional overthinker, Megathreader. Now: Scotland.
Writes Everything Is Amazing: https://everythingisamazing.substack.com/
Will Stancil @whstancil.bsky.social Minnesota guy.
"This particular activist will not stop." Sen. Chris Murphy
Barack Obama @barackobama.bsky.social Dad, husband, President, citizen. barackobamabooks.com
James Howe @kitchenerguy.bsky.social An advocate for action on climate change and universal basic Income. Believes in making Waterloo Region better for all. Loves spending time in Kenya.
Barney Panofsky's Best Intentions @mynamesnotgordy.bsky.social Someone on Twitter ordered the Merlot. So here I am.
Sarah Kendzior @sarahkendzior.bsky.social Bestselling author of THEY KNEW, HIDING IN PLAIN SIGHT, THE VIEW FROM FLYOVER COUNTRY and THE LAST AMERICAN ROAD TRIP.
https://sarahkendzior.substack.com/
Don Moynihan @donmoyn.bsky.social Policy Professor, Ford School, University of Michigan.
Irish immigrant. Administrative burdens guy.
Free newsletter, Can We Still Govern?: https://donmoynihan.substack.com
The Lincoln Project @lincolnproject.us "You cannot escape the responsibility of tomorrow by evading it today.” – Abraham Lincoln 🏴☠️ | Home of #TheBreakdown and LP Podcast
Christine Clark @cclarkradio.bsky.social Morning News Anchor on CHYM 96.7, Country 106.7, CityNews
Proud Hockey Mamma 🏒/ Triathlete🏊♀️🚵♀️🏃♀️ / Always down to talk D&D 🎲
Mark Hamill @markhamillofficial.bsky.social Believe in yourself! Work hard, never give up & anything's possible! OR: Kick back, relax & aim low: You'll never be disappointed...😜
Rebecca Solnit @rebeccasolnit.bsky.social Writer of books. Guardian columnist. Newsletter at MeditationsInAnEmergency.com. Board member, Third Act and Oil Change International.
Board Game Hot Takes Podcast @boardgamehottakes.bsky.social We tell you how a board game experience felt - just minutes after we finish playing. 3 points of view. Posts by Tim. #boardgames #podcast
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
The Beaverton @thebeaverton.com North America’s Trusted Source Of News
Patreon: https://www.patreon.com/thebeaverton
Merch: https://the-beaverton.myshopify.com/
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
Tim Latimer @timlatimer.bsky.social Geothermal 🌋⚡️
CEO @ Fervo Energy
HTX
Nat Bullard @nathanielbullard.com Energy systems and information platforms.
I do that presentation.
https://www.nathanielbullard.com/
📍Singapore
Ramez Naam @ramez.bsky.social Author of the Nexus trilogy. Climate tech investor, author, and activist. Optimistic about the future. 
Aaron Rupar @atrupar.com Independent journalist, SnapStream brand ambassador, and publisher of the Public Notice newsletter https://www.publicnotice.co/subscribe
🇨🇦BookishCanadian @bookishmama.bsky.social Mom, wife, spoonie, survivor, book-lover, Canadian🇨🇦. Passionate about reading, politics, social justice, climate change, animal rescue, disability rights, and education. She/Her
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
Jason Hickel @jasonhickel.bsky.social Professor at ICREA, ICTA, and the Department of Political Science & Public Law at UAB • Author of THE DIVIDE and LESS IS MORE • Global inequality, political economy and ecological economics
Matto Mildenberger @mattomildenberger.bsky.social Associate Prof Political Science UCSB. Studies climate and energy politics. Director, UCSB 2035 Initiative.
Stockholm Resilience Centre @sthlmresilience.bsky.social Stockholm Resilience Centre explores how people and nature can live and develop on a planet under pressure.
IPCC @ipcc.bsky.social Intergovernmental Panel on Climate Change
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/
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
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
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.
Matthew Gertz @mattgertz.bsky.social Senior Fellow at @mmfa. Views expressed here my own. Husband of @alyssarosenberg. Dad. Not the former GOP congressman. Find me here: http://bio.site/mattgertz
Tom Nichols @radiofreetom.bsky.social Staff writer at The Atlantic. Cat guy, Jeopardy champ. New Englander and curmudgeon. Speaker info: https://www.leighbureau.com/speakers/tnichols
Fatima Syed @fatimabsyed.bsky.social Ontario reporter for The Narwhal. Vice-president of the Canadian Association of Journalists. Springsteen, space, sports, sweets
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
Robinson Meyer @robinsonmeyer.bsky.social I’m the founding executive editor of Heatmap News, a contributing Opinion writer for The New York Times, and the cohost of the Shift Key podcast.
📍NYC
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/
Dale Beugin @dalebeugin.bsky.social Canadian climate policy wonk
Mitigation, adaptation, and clean growth
Exec VP at @climateinstitute.bsky.social
Former ED at Canada's Ecofiscal Commission
Writer of typos
📉📈🌎🇨🇦🤷🏼♂️
Canadian Climate Institute @climateinstitute.bsky.social Canada’s leading climate change policy research organization.
climateinstitute.ca
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.
Costa Samaras @costasamaras.com Climate, energy, emerging tech, resilience, & policy professor. Carnegie Mellon Univ. Institute for Energy Innovation Director. Former Biden-Harris White House OSTP Chief Advisor for the Clean Energy Transition. Personal account. He/Him. costasamaras.com
George Monbiot @georgemonbiot.bsky.social Ungainly on land
Hannah Ritchie @hannahritchie.bsky.social Deputy Editor, Our World in Data
Senior Researcher, University of Oxford
Climate, energy, environment, all things data.
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
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 🇨🇦 Gardener 🌱 leahstokes.com; Newsletter: electricnotes.news
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
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.
Juan Moreno-Cruz @jmorenocruz.bsky.social Canada Research Chair in Energy Transitions
University of Waterloo.
https://morenocruz.org
Ali Sheridan @alisheridan.bsky.social Climate Transition Justice, Integrity & Accountability | Fossil Fuel Phaseout
Views = mine | 🇮🇪
The Atlantic @theatlantic.com Exploring the American idea through ambitious, essential reporting and storytelling. Of no party or clique since 1857. http://theatlantic.com
BoardGameGeek @boardgamegeek.com The official Bluesky account for BoardGameGeek
The Washington Post @washingtonpost.com Democracy Skies in Blueness
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/
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. Melissa Lott @mclott.bsky.social Engineer exploring tech/econ/health impacts of the #energytransition to #netzero | Energy & Climate Communicator
Mongabay @mongabay.com Award-winning nonprofit media outlet publishing global environmental science & news in 8 languages via bureaus in India, Brazil, Africa, Latin America, Indonesia & US: https://mongabay.com
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
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
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
Katie Mack @astrokatie.com Cosmologist, pilot, author, connoisseur of cosmic catastrophes. TEDFellow, CIFAR Azrieli Global Scholar. Domain verified through my personal astrokatie.com website. She/her. Dr.
Personal account; not speaking for employer or anyone else.
Ed Yong is offline @edyong209.bsky.social Writer, journalist. Science, health. Pandemics, animals. Birder, photographer. Many words, some awards. AN IMMENSE WORLD, I CONTAIN MULTITUDES. Married to Liz Neeley, parent to Typo. he/him
📷 Canon R6mkii + RF 800mm
Edyong.me
Amy Jaffe @amyjaffeenergy.bsky.social Director Energy Climate Justice Sustainability Lab NYU School of Professional Studies 
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
Rachel Donald @racheldonald.bsky.social I investigate why the world is in crisis: www.planetcritical.com
I also investigate what to do about it: www.planetcoordinate.com
Join subscribers in 188 countries.
OOO until Nov.
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.
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
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
Ketan Joshi @ketanjoshi.co Hey, I'm a climate and energy writer / data analyst who focuses on corporate + govt accountability
Creator + curator of the Greensky feed: https://ketanjoshi.co/greensky/
Based in Oslo but write about US, Europe, Aus too - ketan.joshi85@gmail.com
Michael Druker 🇨🇦 @mdruker.app Cities, justice, bad jokes. Dad. Immigrant 🇨🇦⬅️🇺🇸⬅️Ru. Erstwhile staff eng, advocate @tritag.ca, bsky tinkerer @feeds.mdruker.app. he/him. Support 🇺🇦
📍 Kitchener-Waterloo, Ontario
David Roberts @volts.wtf I run a newsletter/podcast called Volts about clean energy & politics. Subscribe & join the community at http://volts.wtf!
The New York Times @nytimes.com We seek the truth and help people understand the world. Not a subscriber? Your first month is now free in our app. https://nytimes.onelink.me/Xpht/zbx4nci9