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
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
Kevin 🚀 @astro-kevin.com Spacecraft operator, democracy & bureaucracy enjoyer
Previously at NASA, Stanford, UT Austin
@cira-csu.bsky.social @cira-csu.bsky.social 
Dr. Eric J. Fielding, PhD @ericfielding.mastodon.social.ap.brid.gy Geophysicist at lab in Pasadena, California. Statements and opinions posted by me are my own and not those of my employer. he/him. Header image is […]
🌉 bridged from https://mastodon.social/@EricFielding on the fediverse by https://fed.brid.gy/
Adam Aaronson @aaronson.bsky.social Knows the alphabet (in order) Aaronson.org
The Onion @theonion.com America’s Finest News Source. A @globaltetrahedron.bsky.social subsidiary.
Get the paper delivered to your door: membership.theonion.com
Join The Onion Newsletter: https://theonion.com/newsletters/
Roger Creel @rogercreel.bsky.social Climate geophysicist at WHOI || Assistant Professor at Texas A&M starting fall 2025 || sea level + ice sheets + permafrost || PhD Columbia / BA Amherst || rogercreel.com || Views my own. 
Alex Wellerstein @wellerstein.bsky.social Nuclear historian. Professor at Stevens Institute of Technology. Visiting researcher at Nuclear Knowledges program, Sciences Po (Paris). Author of THE MOST AWFUL RESPONSIBILITY (2025). Creator of NUKEMAP. Blogging at https://doomsdaymachines.net.
Joey Politano🏳️🌈 @josephpolitano.bsky.social Writing a data-driven newsletter about economics @ apricitas.io
Nuance? In this Economy
Full Employment Stan, Brazilian Coffee Tariff Victim |
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.
Renee DiResta @noupside.bsky.social 🌐Studies influence, propaganda, platform design@Georgetown
✍🏼Lawfare,The Atlantic, Substack/Ghost Newsletter (signup on my site if you want Ghost)
📕Invisible Rulers: The People Who Turn Lies Into Reality (invisiblerulers.com)
🦹🏻♀️Twitter Files supervillain
Greg Fiske @gfiske.bsky.social Putting science on the map at Woodwell Climate Research Center | Cartographer | Analyst | Senior Research Associate | Fly fisher | located in Woods Hole, MA, USA 
Edgar McGregor @edgarmcgregor.bsky.social San José State University Climate Science🌧🌴-- Climate activist conducting 1,900+ daily trash pickups.🌎🏜 -- He/Him -- Because the future is worth fighting for
Iain H Woodhouse 🛰️🌍🌲 @fortiain.bsky.social Satellites. Space.Trees. Prof Edinburgh Uni. Co-founder Earth Blox.
Abrahm @abrahm.bsky.social Author: On The Move, about climate migration in America @fsgbooks. Reporter investigating climate @ ProPublica + New York Times, 2022 NAFellow + EMCollective fellow. Signal: 917-512-1803
Al Shaw @shaw.al developer / reporter / map maker at ProPublica • dm me on signal: ashaw.01 • also at: @a_l@mastodon.social • he/him
🔗 https://shaw.al
Harald Tryti Rieber @haraldtr.bsky.social Taking web-gis from 1990 -> 2024 🗺️ co-founder & cto @ atlas.co 🌍
Atticus Stovall @stovallatticus.bsky.social 🌳 #Forest #ecology🌲 | #lidar lover | 🌎 @NASAGoddard | @thenasaearth | @univofmaryland | Opinions my own 
Polars @pola.rs Dataframes powered by a multithreaded, vectorized query engine, written in Rust.
Sarah Laskow @slaskow.bsky.social senior editor at the Atlantic. I think a lot about climate, disease, animals, plants, risk, kids, New York City, and sometimes other cities too
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
David Roberts @volts.wtf I run a newsletter/podcast called Volts about clean energy & politics. Subscribe & join the community at http://volts.wtf!
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
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.
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
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/
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
Richard Waite @waiterich.bsky.social Director, Agriculture Initiatives, World Resources Institute. Working with colleagues around the world to create a sustainable food future. DC-based. Own views.
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
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
Gavin Schmidt @climateofgavin.bsky.social Climate scientist, juggler. Bikes etc. Blogging at https://www.realclimate.org - data visualization, explainers, and debunking.
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/
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
Lissa Harris 🌈🗑️🔥⚔️🐀 @lissaharris.bsky.social COP is stored in the ovaries
pompe à chaleur. recovering local digital news reporter. rural volunteer firefighter. Gideon the Sixth. your favorite deep state climate bureaucrat’s favorite shitposter
she/her/bro 🔌⚡️
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
Josh Busby @busbyj2.bsky.social Professor at the University of Texas-Austin. Former Senior Climate Advisor DOD. Climate security, climate governance, clean energy, global health, US foreign policy. Author of States and Nature: The Effects of Climate Change on Security (Cambridge, 2022).
Michael Wara @michaelwara.bsky.social Works at Stanford on equitable climate and energy law/policy with a big helping of wildfire and insurance.
Yonah Freemark @yonahfreemark.com Transport / Housing / Land Use / Politics / @urbaninstitute.bsky.social / Le progrès ne vaut que s’il est partagé par tous / yonahfreemark.com / thetransportpolitic.com
Juan Moreno-Cruz @jmorenocruz.bsky.social Canada Research Chair in Energy Transitions
University of Waterloo.
https://morenocruz.org
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
Gernot Wagner @gwagner.com Climate economist, Columbia
https://gwagner.com
It's pronounced "juggernaut" without the "jug"
Ken Caldeira @kencaldeira.com Mostly mentoring a group of postdocs at Stanford.
Senior Scientist at Gates Ventures.
climate / energy / etc
https://sustainablesolutions.stanford.edu/people/ken-caldeira
Posts imperfectly represent the views of my former self and not my employer.
Emily Grubert @gruberte.bsky.social civil engineer / environmental sociologist. energy, water, climate, buildings, justice. fossil phaseout / universal programs. she / her. bunnies.
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.
Ramez Naam @ramez.bsky.social Author of the Nexus trilogy. Climate tech investor, author, and activist. Optimistic about the future. 
isaac @sevier.io Posting about electricity and how we can care for one other. Building @publicgrids.org. SF. they.
Latest: “Why public power campaigns win"
https://www.isaacsevier.com/notes/public-power-san-francisco-new-york-shrestha-mamdani-organize/
Arkady Martine | Dr. AnnaLinden Weller @byzantienne.bsky.social speculative fiction (Teixcalaan series, ROSE/HOUSE), climate & energy policy (all statements my own), Byzantinist (nonpracticing but never not true).
unfortunately, I care about power lines now
she/her. halfway between Santa Fe and NYC.
Danny Cullenward @ghgpolicy.org Forensic climate economist and lawyer • The carbon accounting canary in your climate policy coal mine • https://ghgpolicy.org
Marshall Shepherd @drshepherd2013.bsky.social Weather-Climate professor and scientist, Host of Weather Geeks, Forbes Senior Contributor, Alpha, 3xFSU Alum...Tweets and RTs are mine but not endorsements
Jordan Carlson @jordantcarlson.bsky.social Canadian postdoc in Japan.
Energy, sustainability, unrelated ramblings.
Chelsea Harvey @chelseaeharvey.bsky.social Climate & extreme weather reporter |
E&E News by POLITICO | NYC via NC SC AL WV
TIPS: charvey@eenews.net | chelseaeharvey@protonmail.com |
Signal @chelseaeharvey.01
ClimateFran @climatefran.bsky.social professor @UCDavis | climate change economist / scientist / general nerd | White House CEA 2022-23
https://franmoore.faculty.ucdavis.edu/
Meg RW @hedgewitch.bsky.social Mommy
Community Organizer - Climate, Abolition, Housing, Unions in Southern Ontario.
Very sweary.
Plants!
Jeremy Wallace @jeremywallace.bsky.social China, climate, stats, and cities. Johns Hopkins SAIS, Good Authority. No Kings.
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
Jenny Chase @solarchase.bsky.social Solar analyst at BloombergNEF, goose keeper. Author of a book, "Solar Power Finance Without the Jargon". Opinions all my own.
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.
Paul Kelleher @paulkelleher.net Moral & political philosophy, climate econ, bioethics
Author of *The Social Cost of Carbon* (OUP 2025) | Posting in personal capacity
Likes: Boston Celtics ☘️, Maine (from whence I come), bouldering, ebikes, funding public ed.
paulkelleher.net
Hisham Zerriffi @hishamzerriffi.bsky.social Energy Resources, Development and Environment Lab (ERDELab) PI. Energy, equity, justice, climate change, bioenergy. But also TTRPGs and photography (https://pixelfed.social/i/web/profile/499807930552574625). he/him.
Marci Baranski @ecomarci.bsky.social 💡 Independent consultant.
📖 Author of The Globalization of Wheat: A Critical History of the Green Revolution
🌿 Ex-UNEP, ex-USDA
📌 DC
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.
Blake Shaffer 🇨🇦 @blakeshaffer.bsky.social Associate professor of economics at the University of Calgary. Former energy trader.
blakeshaffer.ca
Jonathan Magnolia Gilligan @jmgilligan.org Integrating social & natural sciences & modeling to study climate change & society | Behavioral approaches to climate policy | Nashville TN | They/them 🏳️🌈 🏳️⚧️ genderqueer | Jew | Friends call me Maggie | My words aren't my employer's | magnoliagilligan.org
Alli DeJong @allidejong.bsky.social climate, adaptation, decision analysis, flood risk, insurance, resilience, BCAs. planning & policy jack of all trades at the Water Institute. (personal account)
also sports, birds, हिंदी, cities, etc.
chicago via new orleans via chicago
Patricia Levi @patricia-levi.bsky.social Strategy & Market Development @ Form Energy | Stanford PhD | MIT Energy Initiative | Macro-energy systems founder
Total nerd about: big batteries, grid decarbonization, electricity markets, bikes, mountains, plants, ceramics
Views mine
holly jean buck @hollyjeanbuck.bsky.social climate policy, writer, social scientist, geographer
Dr. Katharine Dickson @metaomicsnerd.bsky.social Microbiome science by training; climate policy by calling.
Professional anti-methanogen crusader.
I 分かる some 日本語.
Opinions my own. She/her. 🇺🇸. ☸️ (Jōdo Shinshū).
Owner of @cowburpsbot.bsky.social
Portfolio: https://tinyurl.com/katharinedickson
Aimee Witteman @aimeewitteman.bsky.social Pro-housing decarb strategist. Midwest kid in D.C.⚡️
Also posts on democracy, bikes, trail running, and Lake Superior shipwrecks. Personal Account.
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.
Emil Dimanchev @emildimanchev.bsky.social Interdisciplinary scientist working on energy systems and climate policy. Postdoc at Princeton ZERO Lab. Research Affiliate at MIT CEEPR. Consulting for Good Judgment. 0th-gen immigrant. Writings: dimanchev.com.
Danielle Zoe Rivera @danielle-rivera.bsky.social 🇵🇷 Assistant Professor of Landscape Architecture + Environmental Planning at UC-Berkeley | Just + Equitable Environments | Disaster (and Disastrous) Research | Occasionally gardening + a dog
Justin Gundlach @justingundlach.bsky.social General Counsel & Director of Research at The Future of Heat Initiative. Previously a senior advisor at New York's Department of Public Service. NYC denizen.
That electrified lamp in the picture used to burn gas.
Alex Barron @alexrbarron.bsky.social Climate policy wonk. Rogue biogeochemist. Assoc. Prof., Fmr. Congressional staff (AAAS_STPF). Obama EPA & Biden OMB alum.
Josh Lappen @jlappen1.bsky.social energy historian | postdoc at Notre Dame, PhD at Oxford | infrastructure, decarbonization, and landscapes | Angeleno | always on the lookout for a good fun fact
views my own, at best
Bora Chang, MPH @climatechang.bsky.social communications/climate/environment; views my own
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
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
Moira Birss @moira.bsky.social Climate, economic justice & human rights research, advocacy & policy visioning. Senior Fellow @cplusc.bsky.social studying US disaster insurance & global finance policy. Board co-Chair @lawgaction.bsky.social. Amo a 🇨🇴. Living on Ohlone land. she/ella/ela.
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
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.
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
Lauren McPhillips @lmcp.bsky.social Assistant Prof @ Penn State; into water, soils, infrastructure, nature-based solutions, sustainability, biking, looking at the bright side. mom of 2 energetic humans. Alum of Cornell/ USGS/ ASU. she/her. https://sites.psu.edu/lmcphillips/
Jaime Palter @jaimepalter.bsky.social Oceanographer, professor, Mom, Rhode Islander. Here to learn and connect with ocean, climate, energy crowd. 
Sara Meerow @sarameerow.bsky.social Associate Professor, University of Colorado Boulder
Working on urban resilience, climate change adaptation (especially heat and flooding), and green infrastructure
Sylvia Chi 齊思涵 @sylviachi.bsky.social lawyer but not your lawyer. admin law enthusiast. i work on environmental and climate justice, public banking, and public power. she/they 🇺🇸🇹🇼 Nutmegger in Oakland
opinions are my own!
Jeff Seidman (he/him) @jeffsseidman.bsky.social Teaches philosophy and environmental studies at Vassar College. Climate teaching website under development: https://climatesolutions-careers.org
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.
Monica Dean @monicadean.bsky.social I dabble in the climate policy-science-comms nexus
Current: Ocean & Climate Diplomacy @ Oceans 5
Former: @usc.edu | US Climate Envoy Team | UN Foundation/IPCC
Views my 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.
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.
Sarah Perkins-Kirkpatrick @sarahinscience.bsky.social Professor, Climate Science | heatwaves | ANU Fenner School | Deputy Director Engagement & Impact, @21centuryweather | convening lead author @IPCC AR7 | co-host totally cooked podcast | @AMOS president | Climate Comms | Mother | Runner | #ADHD
Sarah Watson @sarahwatson.bsky.social lurking for climate resilience, adaptation, policy, and planning. Personal account.
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
Daniel Huppmann @danielhuppmann.bsky.social Climate & Energy at @iiasa.ac.at | chairperson @ccca.ac.at | co-chair #AAR2 | author of IPCC #SR15 | #ScientistsForFuture | #FreeTheModels & #FAIRdata for #OpenScience
https://iiasa.ac.at/staff/daniel-huppmann
Johanna Bozuwa @jbozuwa.bsky.social Researching climate + economic justice.
Direct Climate and Community Institute.
Brigitte Roth Tran @brothtran.bsky.social Senior Economist at SF Fed
Applied micro methods, finance, natural resources, disasters, macro outcomes
Views are my own, she/her
www.rothtran.com
Chad Briggs @chadmbriggs.bsky.social Disaster risk & crisis management professor at AIM in Manila, hybrid warfare & disinfo researcher, purveyor of climate security and undesirable futures. RPG writer. Past lives in Alaska, Kosovo, Ukraine, Hungary, Ireland and elsewhere 🇨🇦
Jeva Lange 🫎 @jeva.bsky.social Writes about extreme weather & wildfires, nature & public lands, and adaptation & resilience for Heatmap.news | Hiking, running, mountains, boats, nonfiction books, long movies, sleep deprivation (baby) |📍 Seattle/Queens
Dr. Prakash Kashwan @pkashwan.bsky.social Env & Climate Justice Prof | Author Decolonizing Environmentalism https://tinyurl.com/3v2fysfr | Editor @environmentalpol.bsky.social | GoogleScholar https://tinyurl.com/PKGSChlr | Ex-Chair @isaess.bsky.social | Dad, Husband