Søren Have @sorenhave.dk Mobility and Infrastructure Lead at green think tank CONCITO.
Living in Frederiksberg, Denmark.
M.Sc. & PhD (math).
Follow me if you are into climate action, transport/mobility and related areas. Here I write mostly in English, but occasionally in Danish.
Dr. Adam Stein @astein.bsky.social Energy, Risk, Sustainability, Interdisciplinary Research, Father.
Director of Nuclear Energy Innovation at the Breakthrough Institute
Alum. Carnegie Mellon EPP
Ashanti Washington ⚡️ @byashanti.bsky.social Communicator • Strategist • Consultant
Energy, power, people & policy
Tennessean. Grid geek. Fourth estate fan!
Priors: FERC, CELI, UCS, ORNL
Edgar Virgüez R, Ph.D. @edgarvirguezr.bsky.social Energy systems engineer and geographer. Decarbonization. Educator. Board Member. Global South. Husband, two-time dad, Latino.
Research Engineer at the Energy Science and Engineering Department at Stanford University.
Ph.D. & M.A. from Duke University.
Brian Tarroja @briantarrojaphd.bsky.social Helping build a robust & beneficial clean energy transition. Researcher & Lecturer at UC Irvine. MechEng PhD & PE.
Direct work:⚡💧🔋💨🌞🌋🚗🔌🏢 🌡🚲
Info: https://btarroja.wixsite.com/btarroja
♿ Cane / wheelchair-user & chronic pain-haver since 11/2023
MIT Energy Conference @mitenergyconf.bsky.social The largest student-led energy & climate conference in the world since 2006
February 23rd–24th, 2026, Cambridge, MA.
Buy your tickets here: www.mitenergyconference.org/
Daksh 🌅 @daxx.bsky.social he/him | Cornell alum 🐻| Solar Mechanical Engineer👷🏼 | Fellow @ Clean Energy Leadership Institute | Content Director @mitenergyconf.bsky.social⚡️| Organizing for a Just Energy Transition ☀️
Ben Paulos @paulosanalysis.com Consulting on energy policy, technology and trends at http://PaulosAnalysis.com. Affiliated with the Incentive Finder (govcentives.com), Ava Community Energy, Clean Energy States Alliance, and @solarunitedneighbors.org but posts are my own.
Energy Markets & Planning at Berkeley Lab @berkeleylabemp.bsky.social The Energy Markets & Planning (EMP) department at Berkeley Lab inspires and informs impactful solutions to existing and emerging global energy challenges through objective and timely research and technical assistance. emp.lbl.gov
Jay Turner @jayturner.bsky.social Environmental Studies Professor at Wellesley College. Author of Charged: A History of Batteries and Lessons for a Clean Energy Future (2022). Tracking and analyzing clean energy supply chains at https://www.the-big-green-machine.com 
Antonia Juhasz @antoniajuhasz.bsky.social Investigative Journalist climate, energy, environment.
Rolling Stone politics contributing reporter.
"Gripping in its disgusting clarity." - my writing
Books include, THE TYRANNY OF OIL.
Lecturer.
http://www.AntoniaJuhasz.net
John Paul Helveston @jhelvy.bsky.social Systems Eng Prof @ GWU 🦛 | Director, Data Analytics MS Program | EVs 🔋🚗 | Low Carbon Tech | Choice Modeling | Survey Research | China | US-China Policy | #rstats | #reproducibility | #opensource | Father | opinions own 
Lyssa Freese @lfreese.bsky.social Climate, air quality, energy, equitable solutions
Otherwise in the mountains, throwing pots, or making dad jokes
Opinions my own, not my employer's.
Paulina Jaramillo @paulijllo.bsky.social Professor of Engineering & Public Policy @CarnegieMellon. Energy system transtions and climate. #energysky #climatesky. IPCC AR6 WGIII. Now a @AAAS S&T Policy Fellow in the House of Reps. 🇨🇴by birth, 🇺🇸 by naturalization. 🐘lover. Views are my own.
David Hsu @dhsu.bsky.social Professor studying cities, infrastructure, climate, energy, long bike rides, the Boston Celtics, & the drop serve. Personal account representing only me. Likes, reposts ≠ endorsements.
Destenie Nock, PhD @destenie.bsky.social Professor at Carnegie Mellon University. Energy Affordability. Energy & Climate Justice. Macro Energy Systems Modeling. CEO - Peoples Energy Analytics. Named a 2024 Science Defender. Nonfiction rep: @laurieabkemeier. Fiction rep: @ajvanbelle
Ed Carr @edwardrcarr.com US Center Director and Senior Scientist, Stockholm Environment Institute | Interim Chair, STAP/GEF | CLA IPBES Transformative Change Assessment | LA IPCC AR6 WGII | Masters T&F All-American | Hopelessly realistic optimist
www.edwardrcarr.com
Kyri Baker @kyrib.bsky.social engineering professor @ University of Colorado
power systems optimization AND power lifting
"energy as a personality" -my wife
<3 cats, playing guitar/bass/drums, rock/metal, fitness, video games, taking stuff apart. Views =my own and not my employer's
Silvio Marcacci @silviomarcacci.bsky.social Senior Director of Communications, @energyinnovation.org. Board Advisor, @theicct.org + @co2bc.bsky.social. Tired dad.
Rage, rage against the dying of the light.
Blake Shaffer 🇨🇦 @blakeshaffer.bsky.social Associate professor of economics at the University of Calgary. Former energy trader.
blakeshaffer.ca
Joe DeCarolis @jfdecarolis.bsky.social Focused on applying state-of-the-art data systems, models, and analysis to inform decision making on energy. Professor at NC State University; served as the 10th Administrator of the U.S. Energy Information Administration. Personal account.
Jenny Chase @solarchase.bsky.social Solar and clean power analyst at BloombergNEF, goose keeper. Author of a book, "Solar Power Finance Without the Jargon". Opinions all my own.
Rebecca Bratspies, Author @rbratspies.bsky.social Professor, Tulane Law | award-winning scholar, author, speaker
scuba diver | environmental justice, climate justice, human rights, NYC history, urban policy, comic books | mom | optimist (mostly) www.RebeccaBratspies.com
Joseph D. Ortiz @earthsciinfo.bsky.social NatGeo Explorer, Oceanographer, Climate Scientist; Env. Remote Sensing; Energy & Sustainability; husband, father #FirstGen, Views my own; Google scholar: https://scholar.google.com/citations?hl=en&user=qMBuSe4AAAAJ
Jordan Carlson @jordantcarlson.bsky.social Canadian postdoc in Japan.
Energy, sustainability, unrelated ramblings.
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.
Emily Grubert @gruberte.bsky.social civil engineer / environmental sociologist. energy, water, climate, buildings, justice. fossil phaseout / universal programs. she / her. bunnies.
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.
Madison Condon @madisoncondon.bsky.social climate risk, corporations, use & abuse of science & econ in the administrative state
papers: https://papers.ssrn.com/sol3/cf_dev/AbsByAuth.cfm?per_id=1654671
sometimes I am here and sometimes I am not
Alissa Walker @awalkerinla.bsky.social I'm a writer and a walker in LA. Tracking the city's megaevent progress at Torched. LA Podcast co-host, new episodes drop every Monday. LAUSD mom. @awalkerinla everywhere else. Sign up for my newsletter at torched.la 🔥
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/
James Temple @jtemple.bsky.social Climate and energy editor, Reno bureau chief, MIT Technology Review. Ski bum. Dog dad.
Please send tips (not PR pitches) through Signal: jtemple.99
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
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
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
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.
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
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
Kelly Hereid @kellyhereid.bsky.social Climate scientist, geologist, and catastrophe modeler, Liberty Mutual. Posts on all things hurricane, wildfire, flood, earthquake, tornado. Sassy takes are mine not employer's.
📍Oakland, CA
Website: hereidk.strikingly.com
Zamafir @zamafir.bsky.social I’m a big ESG nerd. ❤️ ⚡️🚗, 🪴, 🐕, and anything that helps folks live a more sustainable life. Let's focus on what we can do, today, to mitigate climate change!
I've spent 4 decades on 🌏, and the better part of 3 driving 🚗🔋⚡️. Lets help folks upgrade
Mark Z. Jacobson @mzjacobson.bsky.social Climate, pollution, clean/renewable energy
Stanford U Prof, Civil & Env Eng; Director, Atmos/Energy Program
Cofounder-Solutions Project; Appeared on Letterman
Testified Held v Montana
https://web.stanford.edu/group/efmh/jacobson/
Stanford.io/Jacobson
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.
Scott Hamilton @sdhamiltonvic.bsky.social Author, researcher and policy advisor. Adjunct Associate Professor Monash Uni, Senior Advisor Smart Energy Council, ‘A Better Australia’ 📕 ‘Sold Down The River’ 📕 #RenewableEnergy #ClimateCrisis #EnergyTransition
California Energy Commission @calenergy.bsky.social Where innovation meets action. As the state's primary energy policy and planning agency, we're driving California toward a clean, reliable, affordable, & equitable future.
Mayor Zohran Kwame Mamdani @mayor.nyc.gov Fighting every day to deliver a city that working New Yorkers can actually afford. Mayor of New York City.
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/
The Polycrisis @thepolycrisis.bsky.social Political economy of climate, finance, geopolitics & other things, by @70sbachchan.bsky.social and @katemac.bsky.social
All our stuff is now here! http://www.thepolycrisis.org
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/
Prof Friederike Otto @frediotto.bsky.social 🇬🇧 🇪🇺 physicist, philosopher, lead https://www.worldweatherattribution.org/, author of Climate InJustice https://greystonebooks.com/collections/current-affairs-politics/products/climate-injustice, she/her
holly jean buck @hollyjeanbuck.bsky.social energy & climate policy, writer, analyst
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
Gavin Schmidt @climateofgavin.bsky.social Climate scientist, juggler. Bikes etc. Blogging at https://www.realclimate.org - data visualization, explainers, and debunking.
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
John Kostyack @kostyack.bsky.social Consulting on climate change & the energy transition for NGOs & foundations at Kostyack Strategies. Senior Contributor at Forbes.com & Senior Fellow at ceea.us. All opinions expressed here are solely my own.
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/
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/
Kate Mackenzie @katemac.bsky.social finance, energy, climate, geopolitics, industrial policy
@thepolycrisis.bsky.social
in Australia -> DMs hard to retrieve, best to email
Akshat Rathi @akshatrathi.bsky.social - Senior climate reporter, Bloomberg News
- Newsletter http://bit.ly/bbg-zero
- Podcast http://bloomberg.com/zero-podcast
- Book https://akshatrathi.com/book
- akshat.rathi@pm.me
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
Profit Greenly @profitgreenly.bsky.social I'm just a dad, standing in front of the world, asking everyone to love heat pumps, eBikes, solar, wind, transmission, dense housing, trains, buses and other things that can help us avoid civilization destroying climate change.
Brent Heard @bheard.bsky.social Facilitating scholarship on energy systems and emerging technologies. Senior Program Officer with the National Academies. 70% San Pellegrino by volume (the other 30% is coffee). brentheard.com
Cynan Houghton @cynan.bsky.social Accelerating Asia’s energy transitions.
@ Tara, Singapore.
All posts in a personal capacity.
Chris Meder @evcurvefuturist.com Futurist | Exponentialist | Humanist
Electrification → #Bettrification
Software → Automation → Intelligence
Solar • Wind • Batteries • EVs • BESS • AI • BIO
Emily Moore @emilymoore.bsky.social Climate and energy policy in the Pacific Northwest @Sightline.org. Views my own. 
Justin Gerdes @justingerdes.bsky.social I publish the @quittingcarbon.bsky.social newsletter. Subscribe: https://www.quittingcarbonmedia.com/. Former Managing Editor, Energy Monitor. Send story ideas or tips: justingerdes@gmail.com or Signal: JustinGerdes.85
Josh Lappen @jlappen1.bsky.social energy historian | infrastructure, decarbonization, and landscapes | Angeleno | always on the lookout for a good fun fact
coming soon to a disciplinary boundary near you!
Nicholas A. Christakis @nachristakis.bsky.social Sterling Professor of Social and Natural Science at Yale University. Sociologist. Network Scientist. Physician. Author of Apollo's Arrow; Blueprint; Connected; and Death Foretold. Director of the Human Nature Lab: https://humannaturelab.net
Heatmap News @heatmap.news A new media company focused on the biggest story of our time: climate change. Subscribe to our newsletter at https://heatmap.news.
Emily Pontecorvo @emilypont.bsky.social Staff writer @heatmap.news | signal: emilypont.89
PM2.5 Kills ~9 Million People Each Year Worldwide @tkovach.bsky.social Climate dad to E, J, and C. Working on decarbonization and environmental justice in Cleveland. Founded the Cleveland Refugee Bike Project. Supports Juventus & Eintracht.
Opinions my own and probably wrong.
Zohran Kwame Mamdani @zohrankmamdani.bsky.social Mayor of New York City
David Roberts @volts.wtf I run a newsletter/podcast called Volts about clean energy & politics. Subscribe & join the community at http://volts.wtf!
Kevin J. Kircher @kevinjkircher.com Engineering prof (mechanical + electrical) at a big Midwest state school. Energy, climate, buildings, power grid, control, optimization, data science. He/him. Personal account. https://kevinjkircher.com/ Email: my last name at purdue dot edu
Rob @robertferry.bsky.social Climate policy, society, and the built environment. Architect, LEED AP BD+C. https://landartgenerator.org
John Smillie @johnsmillie42.bsky.social Husband, father, dog owner, hiker, climate action advocate, amateur energy nerd, heat pump evangelist, audiobook enthusiast. Chalant, yet gruntled.
Brendan Pierpont @brendan.bsky.social Energy and climate nerd. Electricity @energyinnovation.org. Views are my own.
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
Brendon Slotterback @bslotterback.bsky.social Decarbonization. Likes charts. Helping philanthropy and government advance clean energy. PGH🌲 🚲
Joshua Basseches @joshuabasseches.bsky.social Renewable energy and climate politics and policy. Assistant Professor at Case Western Reserve University. Author of Owning The Green Grid (MIT Press). More at joshuabasseches.com
Justin Mikulka @justinmikulka.bsky.social Research, analysis and opinion on the ongoing energy transition.
Writing about it at:
https://powering-the-planet.ghost.io
Jan Rosenow @janrosenow.bsky.social Professor of Energy & Climate Policy at University of Oxford
Energy Programme Leader at ECI, University of Oxford
Senior Research Fellow at Oriel College, Oxford
Senior Associate Institute for Sustainability Leadership, University of Cambridge
Barack Obama @barackobama.bsky.social Dad, husband, President, citizen. barackobamabooks.com
Jacob Soboroff @jacobsoboroff.bsky.social host of @connectwithjacob.bsky.social. weekends 10AM ET on @ms.now. author of NYT bestsellers Firestorm and Separated.
jacobsoboroff.com
Governor Gavin Newsom @governor.ca.gov 40th Governor of California.
Building a California for All.
Gabrielius Landsbergis @glandsbergis.bsky.social Former Minister of Foreign Affairs of the Republic of Lithuania
Landsbergis.com Bookings: agent@championsukplc.com
Jeff Goodell @jeffgoodell.bsky.social Author, NYT bestseller THE HEAT WILL KILL YOU FIRST | Guggenheim Fellow | Contributing Writer, ROLLING STONE
NPR @npr.org This is NPR 🎙️
Ryan Holiday @ryan-holiday.bsky.social NYT Bestselling Author of The Obstacle Is The Way, The Daily Stoic, Ego Is The Enemy, Stillness Is The Key, and more.
Pre-order my newest book: dailystoic.com/wisdom
Bon Iver @boniverwi.bsky.social Bon Iver is an art project based in Wisconsin.
Kamala Harris @kamalaharris.com Always fighting for the people.
Wife, Momala, Auntie. She/her.
107 Days, my behind-the-scenes account of the shortest campaign in history, is available now at https://kamalaharris.link/107Days.
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
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 Kalmus @climatehuman.bsky.social Climate scientist working at NASA/JPL and lover of truth. Arrested for defending Earth. Opinions mine. 
Vaidotas Zemlys-Balevičius @mpiktas.lt Mathematician, econometrician, data scientist. Hate stupidity with passion. Will argue about anything.
Governor Tim Walz @governorwalz.mn.gov Dad, husband, teacher, coach, veteran. Governor of Minnesota. Working to move our state forward as #OneMinnesota.
Chris Chavez @chrischavez.bsky.social @CitiusMag.com Founder. Writing and podcasting about track and field, marathons + all things running. Sports Illustrated alum. Email: chris@citiusmag.com | Visit CITIUSMAG.com
CITIUS MAG @citiusmag.com Making it easier (& way more fun) to be a track and field fan. Stories and commentary about your favorite sport. https://citiusmag.com/
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app