Judith Enck @judithenck.bsky.social Co-author of βThe Problem with Plasticβ (The New Press, Dec. 2025) Former EPA Regional Admin., Pres. of Beyond Plastics, Bennington College Faculty
Food & Water Action @foodandwateraction.bsky.social Lobbying and political sibling organization of
@foodandwater.bsky.social, fighting for the safe food, clean water, and livable climate we all deserve.
California Environmental Justice Alliance (CEJA) @ceja.org Coalition of 10 grassroots orgs fighting for environmental justice in CA. We defend low-income communities of color on the frontlines of pollution to build healthy communities for all. Affiliate organization to @ceja-action.org
Kristin George Bagdanov @kgeorgebagdanov.bsky.social Doing research at @buildingdecarb.org
Writing about energy history, environmental justice, and the path to affordable, clean heat at cheaperheat.substack.com
Rupert Rivett @rupertrivett.bsky.social πΈ Photographer | capturing life's candid moments with my camera πΈ
π https://rupertrivett.photoshelter.com π
#RealStreetPhotography #Photojournalism|
Skilled in unobtrusive, authentic #storytelling
π£NEW SUBSTACK π
ππΈππΈππΈππΈ
https://rupephoto.substack.com/
Josh Levinger @jlev.online Coder who cares about the why of tech as much as how
Progressive tech OpenSourceActivism.tech, Spacedog.xyz
Climate tech ElephantEnergy.com, ImpactObservatory.com
VT born, 2x MIT.edu, Calif 12 yrs, now Mass again
lauren dalban @laurendalban.bsky.social 
John Smillie @johnsmillie42.bsky.social Husband, father, dog owner, hiker, climate action advocate, amateur energy nerd, heat pump evangelist, audiobook enthusiast. Chalant, yet gruntled.
Billy Fleming @joobilly.bsky.social Land, Carbon, and Capitalism. Professor @ Temple. Founding Strategic co-director @cplusc.bsky.social. Pre-order my new book, "Building Postcarbon Futures: Land, Justice, and Energy Transitions" here: https://linktr.ee/billyfleming
Daniel Aldana Cohen @aldasky.bsky.social Political economy of climate emergency. Assistant Professor of Sociology, UC Berkeley; Director, Socio-Spatial Climate Collaborative, or (SC)2; Founding Co-Director, Climate and Community Institute @cplusc.bsky.social. A Planet to Win (Verso). he/him
Derek Eder @derekeder.com Civic tech builder in Chicago. Partner at DataMade, President Emeritus at Chi Hack Night & Oak Park Village Trustee. Entrepreneur, developer, civic technology leader, climate advocate and public servant. he/him
Forest Gregg @bunkum.us bunkum.us
ontological expert
"using my custom formula, I would get a prediction"
Arielle S @arielleschw.bsky.social campaigns coordinator for nyc-dsa, other stuff too
Charlie Rybak @charlierybak.bsky.social Lover of local news and Minnesota sports. VP of Innovation @ MSP Communications (Twin Cities Business & Mpls.St Paul Magazine). Co-founded Southwest Voices & Downtown Voices in Minneapolis.
@patrickbryant.page @patrickbryant.page Recovering particle physicist, professional clean energy nerd working at the PJM Interconnection.
Switchbox @switch.box A new think tank producing rigorous, accessible data on state climate policy for advocates, policymakers, & the public. www.switch.box
Bob Mayo @bobmayo.com Building Electrification Advocate. Climate-tech curious. Engineering and research at the intersection of hardware and software. Enjoyer of well-designed interfaces between subsystems.
@theebabyk.bsky.social @theebabyk.bsky.social 
Jamie Dickerson @jamiedickerson.bsky.social Senior Director w/ Acadia Center. Formerly NYSERDA-fied. Climate policy and strategy. Posts and opinions are my own.
John Delurey @johndelurey.bsky.social Midwest lead for Vote Solar. Dedicated to renewable, decentralized energy future. Committed to equitable and transformative journey. CELI alum. Off-grid energy access -> Sierra Club -> World Bank -> USAID -> Vote Solar. Personal account.
Dimitris Tsekeris @dtsekeris22.bsky.social Energy & Climate | Senior Climate Policy Analyst | Climate Analytics
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 Taggart π‘ β‘οΈ π @christaggart.com Heatpump Papa. Software Engineer. Climate. Cargo Bike Dad.
Building software + communities to accelerate residential electrification.
@electrify613.bsky.social
https://electrify613.ca, YOW
Beth Zeitler @ezeitler.bsky.social Energy Facts, Analysis, and Policy. Associate Director at the National Academies Board on Energy and Environmental Systems. I used to have hobbies, now I have kids. That was meant to be funny, so adding an exclamation point/emoji so you get the vibe! π
Mike Bloomberg @mikeebloomberg.bsky.social Director of the Future of Heat Initiative and Partner at Groundwork Data: Advisory, Research, Technology for the future of heat.
lisa martine jenkins @lisamartinejenkins.bsky.social climate + energy journalist
editor @latitudemedia.bsky.social
lisa@latitudemedia.com / signal: lmj.5709
Sara Baldwin-Griffin @sarabaldwin.bsky.social CEO of @Utah Clean Energy | Former: Sr. Director, Electrification @EnergyInnovLLC, Host of EectrifyThis! Podcast | VP-Regulatory w/ @IRECUSA, Sr. Policy Associate w/ @UtahCleanEnergy
jae holzman @jael.bsky.social hi, i write about climate change and renewable energy. i also play music sometimes. some secret third thing.
Kathryn McGrath @kathrynmcgr.bsky.social Communications for #cleanenergy at Earthjustice. Opinions are all mine. 
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
New York League of Conservation Voters @nylcv.bsky.social We are New York's only statewide environmental organization fighting for clean air, clean water, renewable energy & open space through political action.
Brendon Slotterback @bslotterback.bsky.social Decarbonization. Likes charts. Helping philanthropy and government advance clean energy. PGHπ² π²
Andrew Salzberg π¨π¦ πΊπ¦ @andrewsalzberg.bsky.social Decarbonizing Transportation at Climate Imperative. Lecturer
MIT. Former: Harvard GSD Loeb Fellow, Uber, World Bank.
Protect Bridgeport Bicyclists @stevevance.net Chicago, zoning, ADUs, transportation, maps
my blog: http://stevencanplan.com
my business: http://chicagocityscape.com
BUILD: https://buildforil.org/
Tony Coppoletta @tonycoppoletta.com Likes food. And trains. And cities. Info designer in transit. Made in Chicago. (Personal acct)
tonycoppoletta.com
Also super pro-trans and anti-facisct because I'm a decent human being.
He/him π³οΈβπ
Joe Deely @jdeely.bsky.social Clean Energy, Tech, Progress, MFG in the US, Economics, Science, and Exponential Trends.
Helping to build out a non-profit at Mission City Research.
https://bsky.app/profile/mcresearch.bsky.social
Brian Jaffe @brianjaffe.bsky.social Pro-housing, pro-abundance, pro-democracy in Northern CA. Housing π , Health βοΈ, Education π, & Safety βοΈ for all. End corruption β¬οΈ Get results β¬οΈ.
Colin Kinniburgh @colinreports.bsky.social On leave Summer 2026 // Reporter covering climate and environment for New York Focus. Tips: colin@nysfocus.com, @colin.36 on Signal or DM for cell
Matto Mildenberger @mattomildenberger.bsky.social Associate Prof Political Science UCSB. Studies climate and energy politics. Director, UCSB 2035 Initiative.
California ISO @caiso.com Official Bluesky account for the California ISO
β‘ Conserve energy: @flexalert.org
β¬οΈ ISO Today mobile app: http://bit.ly/3g0mEnm
π‘ Visit www.caiso.com.
Catalyst w/ Shayle Kann @catalyst-pod.bsky.social Shayle Kann asks big questions about how to decarbonize the planet. Produced by @latitudemedia.bsky.social. Listen to new episodes on latitudemedia.com or wherever you get your podcasts.
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
Sara Gersen @saragersen.bsky.social Clean energy attorney and dog aficionado 
Emily Pontecorvo @emilypont.bsky.social Staff writer @heatmap.news | signal: emilypont.89
Dr. Ramesh Laungani @drrambio.bsky.social Assoc Prof of Env. Science @Marist, πΎ & biochar ecology, @ourwarmregards host, #1000STEMWomen founder,#scicomm, fighting #ClimateChange. Messages=mine
https://www.marist.edu/science/faculty/ramesh-laungani
Christo Silvia @christosilvia.bsky.social Housing ποΈ, transitπ, walkingπΆββοΈ and cycling π² advocate in Woburn, MA, USA
Car lite advocate, ebike owner
Historic π owner, renovation amateur, and marriage enthusiast
Vegetarian
Senior RF Design Eng
The opinions on this account do not represent my employer
Larry Chretien @larrychretien.bsky.social Executive Director of Green Energy Consumers Alliance, working in Massachusetts & Rhode Island on a just transition to net zero.
Claire Halloran @clairehalloran.bsky.social Modeling the long-term future of the electricity system. PhD in planning a grid with lots of heat pumps. Electricity grid planning, heat electrification, renewable energy & maps. Personal account, my views. https://clairehalloran.github.io
Wombat @wombat-ee.bsky.social Electrical engineer working on the grid. I have opinions about energy, climate, transport, housing, and politics. YIMBY. #EnergySky
(On Hiatus)
JW Mason @jwmason.bsky.social Associate professor of economics, John Jay College-CUNY; senior fellow, Groundwork Collaborative. Writing at jwmason.org. Study economics with me: https://johnjayeconomics.org. Anti-war Keynesian, liberal socialist, Brooklyn dad. From the river to the sea.
Hajin Kim @hajinkim.bsky.social Assistant law professor at UChicago. Environmental regulation, corporate voluntary efforts, social psych
Derrick Flakoll @dflakoll.bsky.social Policy @BloombergNEF - US and Canadian industrial strategy, trade, regulations, etc. UNC and @harvardkennedy.bsky.social
alum. Category-5 brainstormer. Views are my own, likes & reposts are not endorsements, etc.
Chris Adams @mrchrisadams.net Science & justice. Also: coffee, cities, UX & code. Aghast at all the typos in my tweets. A member of climateAction.tech, and I work at the Green Web Foundation. He/Him.
@mrchrisadams on most of the social networks
Rob Shum @robshum.bsky.social Public policy ( #climate / energy policy, more specifically ) & IR prof (but also ex-π¨π¦ trade diplomat). PoliSciSky πΊοΈ, EnergySky ππ‘, & GreenSky π±. Cf. same handles on also-ran microblogging sites.
Book in banner coming soon: link.springer.com/9783032245755
Kate Courtin @kcourtin.bsky.social State climate policy @envdefensefund.bsky.social. Learning @johnshopkins. Formerly @nature.org. Opinions are mine.
Mohit Chhabra @surfswamy.bsky.social Clean energy analyst at the Natural Resources Defense Council (NRDC).
Views and posts are my own, not NRDC's.
A real economist once called me an energy economist. So I'll roll with that.
https://www.nrdc.org/bio/mohit-chhabra
Brooklyn, NY
Andrew Carter @andrewcarter.bsky.social energy markets + project finance π°.
math + science β€.
deserts + mountains + oceans βοΈ.
swim + bike + run π.
twitter.com/andrew_carter
mastodon.energy/@andrew_carter
James Glynn @drglynn.bsky.social Founder CEO, Adjunct Professor of Energy Engineering
Purpose driven, building open source energy systems frameworks for strategic decision optimisation.
Leveraging 50 years of institutional knowledge in the #IEA #ETSAP #TIMES code.
Dan Gearino @dangearino.bsky.social I cover the energy transition for Inside Climate News. Based in Ohio. Born in Iowa. Go MN Twins! https://insideclimatenews.org/profile/dan-gearino/
Brett Christophers @brettchristophers.bsky.social Geographer
Michael Noble @nobleideas.bsky.social Advisor to industry, government and philanthropy on deploying climate solutions at speed and scale of the climate crisis. NobleIdeas LLC, Saint Paul, MN.
Speaker Melissa Hortman and me celebrating MNβs 100% clean electricity standard.
Erin Overturf @erinoverturf.bsky.social State-level energy transition advocate and regulatory nerd working in the Interior West. Opinions mine, all mine.
David J. Hayes @djhayes01.bsky.social Climate, clean energy, environment. Former SAP in White House Climate Policy Office. Now at Stanford Doerr School of Sustainability and Stanford Law School.
Jeremy Fisher @jeremyfisher.bsky.social Energy systems and climate policy person with lots of opinions, few of which are wise to share. Total sucker for novel decarb pathways. Fanboy of functional democracies and a bit of grace.
Sean Dague @dague.net Software Architect, Climate Volunteer; Software, Climate, Science, Democracy. he/him. Born @ 330pm CO2.
Chirag Lala @cthelala.bsky.social Indian-American. VP of Research & Chief Economist at Center for Public Enterprise. Macro + Finance + Industrial Policy + Decarbonization + Grids + Investment
https://publicenterprise.org/author/chirag/
Octavi Semonin @octavi.co Startup barista at http://powerhouse.co
International Energy Agency @iea.org Shaping a secure & sustainable energy future. We provide data, analysis & ambitious real-world solutions on all fuels & technologies.
Christophe McGlade @christophemcglade.bsky.social Head of Energy Supply at International Energy Agency. Belfast boy. 
George Patrick Richard Benson @georgeprbenson.bsky.social Building better economies for people and planet @ ZEIC.ca
Annoyingly into industrial policy, democratizing finance and economies, and better rule-making.
I have a newsletter: georgeprbenson.com
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 
Joe Daniel @electronecon.bsky.social Electricity Economics and Policy
Working to ensure an affordable energy transition
Principal, RMI (electricity affordability)
opinions expressed here are my own 
David Savage @dtsavage.bsky.social Transmission/Resource planning and RTO issues, IN PUC. PhD ecologist. Consistently mid sports (π΄/βΉοΈ) takes. π€π€π. Posts represent personal views. 
Xiao Wang @xiaowang1984.bsky.social Principal Engineer Semiconductor Industry and now a DER/Grid Edge worker as well! Opinions own
Persistent Weak Layer @teresabarnes.bsky.social Scientist working on reliable solar for decarbonization. Researcher, mountain biker, lifter, skier, mom, punk. she/her, #energysky
All posts my own and not endorsed, accepted, or associated with my mysterious employer. Love solar. Hate fascism.
Brian Tarroja @briantarrojaphd.bsky.social Helping build a robust & beneficial clean energy transition. Researcher & Lecturer at UC Irvine. MechEng PhD & PE.
Direct work:β‘π§ππ¨πππππ’ π‘π²
Info: https://btarroja.wixsite.com/btarroja
βΏ Cane / wheelchair-user & chronic pain-haver since 11/2023
John Paul Helveston @jhelvy.bsky.social Systems Eng Prof @ GWU π¦ | Director, Data Analytics MS Program | EVs ππ | Low Carbon Tech | Choice Modeling | Survey Research | China | US-China Policy | #rstats | #reproducibility | #opensource | Father | opinions own 
Zoe Samuel @zoesamuel.bsky.social #Climate investor @ starshotcapital.com
Board member @ workonclimate.org
Built #Google's biggest internal climate group
Brit in Bay Area
#Film & #theater producer
Maker of world class roast potatoes
Opinions expressed here are my own. Slava Ukraini
Carl Lenox @alphaconstant.bsky.social All in for clean distributed energy abundance. At it for a good while now.
Product, strategy, technology & policy
Rob Carlson @robcarlson.bsky.social I aspire to leave the planet in better shape than I found it.
Managing Director, Planetary Technologies: @planetaryops.bsky.social
2024 Bloomberg Green Champion
Accidental Affiliate Prof of Computer Science, @UWCSE.bsky.social
Home: synthesis.cc
Rob @robertferry.bsky.social Climate policy, society, and the built environment. Architect, LEED AP BD+C. https://landartgenerator.org
Christophe Courchesne @courchez.bsky.social Advocate, law professor, New Englander. Associate Dean/Director, Environmental Law Center and Advocacy Clinic, Vermont Law and Graduate School. Climate, environmental justice, natural resource protection & polluter accountability. He/him.
Paul Salama @sllama.bsky.social Urbanism, Technology, Climate
Eric Hittinger @elephanteating.bsky.social Public Policy Professor at RIT, WILL International Chair at Univ. of Lille & Past President of the US Association for Energy Economics. Batteries, renewables, electricity markets, and emissions. Sometimes I bike across the continent.
David Mendels @davidmendels.bsky.social ZeroCarbonMA, Our Generation Speaks, Resilient Coders, formerly Brightcove, Adobe, Macromedia
Nick Roy @nicholasroy.me energy modeler, economist, cat dad | he/him | views my own
focused on subnational carbon markets and climate finance
Clint Noack (he/him) @clintnoack.bsky.social Making beneficial electrification accessible in Pittsburgh. Tough tech entrepreneur by trade, environmental systems engineer by training. Proud father, husband, Tartan, and Penn Stater.
https://t.crdtg2.com/331727/5165?aff_sub5=SF_006OG000004lmDN
Robert Metcalfe @rmetcalfe.bsky.social Economist, Prof at Columbia University.
Chief Economist: Centre for Net Zero (Octopus Energy Group).
Co-editor: Journal of Public Economics.
1st gen, π΄σ §σ ’σ ·σ ¬σ ³σ Ώ
https://www.rmetcalfe.net/
Stephen Jarvis @stephenjarvis.bsky.social Assistant Professor in Environmental Economics at LSE. Posting mostly about energy/enviro research. https://stephenjarvis.github.io/
Pete Sikora @petesikora.bsky.social The climate crisis & inequality. Married, two kids. Lifelong NYCer, diner guy.
With nychange.bsky.social, directing climate/jobs campaigns 9 years. Previous: 10 yrs CWA D-1, 7 yrs NYPIRG. On climate only, my takes are NYCC βofficialβ. π΅πΈ
New York Communities for Change @nychange.bsky.social One of the largest and most uncompromising community organizations in the country. Jobs. Housing. Public Safety. Climate Action. Immigrant Power. Join us.
Eric Wesoff @ericwesoff.bsky.social Climate reporter and media exec
Canary Media!
www.canarymedia.com
Jeff Seidman (he/him) @jeffsseidman.bsky.social Teaches philosophy and environmental studies at Vassar College. Climate teaching website under development: https://climatesolutions-careers.org
Jon Nichols @jnic93.bsky.social Rates & Regulation Professional. JMU and UNC alum. Big fan of hockey, hiking, and skiing. Posts represent my personal views.
Kay Walsh @kmbwalsh.bsky.social Managing Director of Nova Economics, President of the South African Association of Energy Economics.
Danny Cullenward @ghgpolicy.org Forensic climate economist and lawyer β’Β The carbon accounting canary in your climate policy coal mine β’ https://ghgpolicy.org