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.
Christian Bertsch @cbgermany.bsky.social FMI Project Leader
Urban Truth Collective @urbantruth.bsky.social A new communications-focussed collaboration launched to champion the truth and fight disinformation about how to make better cities for people. Formed by @brenttoderian.bsky.social @tomflood.bsky.social @grantennis.bsky.social.
www.UrbanTruthCollective.com
Higher Education Research and Development @herdjournal.bsky.social International peer reviewed journal of the Higher Education Research & Development Society of Australasia. Published by @TandFResearch.bsky.social.
#HigherEducation #SoTL #Universities
https://www.tandfonline.com/journals/cher20
Energy Data Infrastructure | Global Energy Analytics @energtx.bsky.social Clean global energy data — 106 countries, 170+ indicators, 12 sources. Plus 380+ energy grants & scholarships with deadline alerts. Charts in R. Custom analysis available. energtx.com | info@energtx.com
Ron Filipkowski @ronfilipkowski.bsky.social Editor in Chief, MeidasNews. Former Fed & State Prosecutor, Marine, Attorney. Switched parties from R to D in 2020. MeidasPlus.com/subscribe
George Conway ⚖️🇺🇸 @gtconway.bsky.social Recovering lawyer | Owned by a Pembroke Corgi | Host of Psycho Politics pod and contributor, @TheBulwark.com | Crappy pol | Trying to figure out Substack
substack.com/@gtconway
Aaron Rupar @atrupar.com Independent journalist, SnapStream brand ambassador, and publisher of the Public Notice newsletter https://www.publicnotice.co/subscribe
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
Ben Werdmuller @werd.io @jskstanford.bsky.social fellow at Stanford. Ex: @propublica.org, @19thnews.org, @medium.com, Matter, Elgg.
I write about tech / media / society at https://werd.io.
Simon Willison @simonwillison.net Independent AI researcher, creator of datasette.io and llm.datasette.io, building open source tools for data journalism, writing about a lot of stuff at https://simonwillison.net/
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...😜
Max Rozen @rozenmd.com Building Workers & D1 at Cloudflare. Aussie in France.
Building https://OnlineOrNot.com, a self-funded, sustainable company.
He/Him.
Michael Stachura @michal-stachura.bsky.social Full stack developer. @Front: Vue.js/Nuxt @Back: Python/Django 
Bryan Alexander @edufuturist.bsky.social Futurist, academic, writer.
Ground Truth Forest News @groundtruth.app Evidence-based forest news.
The truth lies in the numbers. So where’s all the tree data?
Join us as we try to find out 🔍
groundtruth.app
Marney Isaac @marneyisaac.bsky.social University of Toronto professor | Canada Research Chair in Agroecosystems | agroecology, crop diversity, soil fertility, agroforestry, sustainable food systems, urban agriculture
Mitchell Dickau, PhD @mitchelldickau.bsky.social Climate modelling. Temperature overshoot. Remaining carbon budgets. Temporary carbon storage. Effect of climate change on outdoor skating in Canada.
Post-doctoral fellow, Concordia University
https://mitchell-dickau.github.io/
Dr. Paulette Steeves @indigarc.bsky.social Canadian, Cree-Metis, Archaeologist, Canada Research Chair Tier II. Pyroepistemology, Author of the Indigenous Paleolithic of the Western Hemisphere. Gardening, food security, Terra Preta soils. Democracy 
Patrick Lilley @patricklilley.bsky.social Biologist on Coast Salish territory/Canada’s Pacific coast #water #watersheds #salmon #forests #nature #conservation #biodiversity #climate #planetaryhealth 💧🌲🌍🚲 🇨🇦🇺🇦
Jim Abraham @yhzweatherguy.bsky.social Meteorologist. Started Canada’s hurricane research and forecast program. Past-President CMOS: https://www.cmos.ca/site/about/cmos?nav=sidebar
Born 314ppm CO2; we're now 425ppm!
Benjamin DeAngelo @bendeangelo.bsky.social Principal and Founder, Operation Future, LLC. Adjunct Professor, Howard University. Former Director, EPA Office of Climate Adaptation & Sustainability. Dad, drummer, cyclist.
Matto Mildenberger @mattomildenberger.bsky.social Associate Prof Political Science UCSB. Studies climate and energy politics. Director, UCSB 2035 Initiative.
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
Dr. Julia K. Baum @baumlab.bsky.social Ocean climate change impacts & solutions (juliakbaum.org, bluecarboncanada.ca) | UVic Special Advisor Climate | Director https://climatesolutionsleaders.org | Pres. https://csee-scee.ca | scientist | mom | feminist | obsessed w 1.5C | stubborn optimist
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.
Simon Donner @simondonner.bsky.social Climate scientist, prof at UBC, writer, speaker, aquatic mammal, dragger of sand into the house.
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.
Catalyst Cooperative @catalyst.coop We help #climate advocates, policymakers, & researchers working on the #EnergyTransition by liberating #OpenData about the US energy system using #Python based #DataEngineering
We're also a worker cooperative.
https://github.com/catalyst-cooperative
Island Press @islandpress.bsky.social Island Press, an imprint of Princeton University Press, publishes books on today’s most pressing environmental issues, including climate & energy, ecosystems, health & food, environmental policy, & more.
https://press.princeton.edu/imprints/island-press
Renew Economy @reneweconomy.com.au Reporting the future of energy, independently.
https://reneweconomy.com.au/
Shannon Mattern @shannonmattern.bsky.social i work across nyc’s libraries and archives; i was a full professor of media studies, art history + anthropology
architecture, archives, 🎨, cities, 🐕, infrastructure, libraries, 🗺️, sound++
nyc + upstate
wordsinspace.net
Miguel de Icaza @migueldeicaza.bsky.social 🍉Fun Stack Vibing at @xogot.bsky.social
Started Xamarin, Mono, Gnome. Prev: Microsoft/.NET/Xamarin/Mono/VSMac/MAIA http://mastodon.social/@migueldeicaza
Chris Kluwe @chriswarcraft.bsky.social Troublemaker extraordinaire, CA AD 72 Candidate, www.kluweoc.com
Frédéric Gruet @fredericgruet.bsky.social Auteur.
L'art de creuser un trou - roman - Gallimard
Et si ce n'était pas le climat? La biodiversité, le combat pour changer le monde - Essai - Edisens
#Ecologie #Biodiversité #Biodiversity
Wolfgang Feist @wolfgangfeist.bsky.social Humanist. Physicist. Educator. Engineer.
Energy efficiency is key to solving the climate crisis – and the problems associated with it. Energy efficiency is NOT an abstract concept: it is real in the form of passive houses, heat pumps, electric vehicles,...
Governor JB Pritzker @govpritzker.illinois.gov Husband and father. Proudly serving as Illinois’ 43rd governor.
Marcus Taylor @marcusetaylor.bsky.social Professor @ Queen’s University. Research on climate resilient agriculture, agrarian studies, rural livelihoods. 
Henk Renting @henkrenting.bsky.social Netherlands, Teacher, Researcher, Food Systems, Food Policy, Urban Agriculture, Agroecology, Nature, Colombia, Pais Vasco, España, Twitter-refugee
Jennifer Clapp 🇨🇦 @jennifer-clapp.bsky.social 🇨🇦 Professor and Canada Research Chair, University of Waterloo.
Global political economy of food and agriculture. Member of IPES-Food. Website: https://jenniferclapp.owlstown.net/
Author of Titans of Industrial Agriculture (MIT Press, 2025)
Agroecology Map @agroecologymap.bsky.social #Agroecology Map aims to assist in the #mapping of experiences with the goal of bringing people together to strengthen or create #collaborative networks that enhance the sharing of experiences in agroecology. https://agroecologymap.org/ 🌱 🌎 💚
Erling Fossen @oslourban.bsky.social Oslopolitan dedicated to making the world a better place by strengthening our cities
Open Source Collective @oscollective.org A 501c6 Fiscal Host dedicated to creating a healthy ecosystem to sustain open source technology for the future. 👨🏼💻
Learn more about us - https://oscollective.org
Apply - https://opencollective.com/opensource
Albert Vilella, PhD. @albertvilella.bsky.social Bioinformatics Scientist / Next Generation Sequencing, Single Cell and Spatial Biology, Next Generation Proteomics, Liquid Biopsy, SynBio, AI/ML in biotech // http://albertvilella.substack.com
EcoCocon @ecococon.bsky.social A Wall System Designed by Nature. Healthier and more sustainable living combined with exceptional energy efficiency.
https://ecococon.eu/
ChicagoVintageTileFloors @chicagovtfloor.bsky.social 🏳️🌈 🏳️⚧️ It's definitely mostly about the floors. There may be swear words. 🏳️⚧️ 🏳️🌈
Les Ecologistes Paris 5 @lesecolosparis5.bsky.social Les écolos à Paris 5 : https://linktr.ee/lesecologistesparis5
Comptes parisiens : https://bsky.app/starter-pack/lesecolosparis5.bsky.social/3lfnmblwye32z
Anne Hidalgo @annehidalgo.bsky.social Ancienne Maire de Paris
Matthieu 🦋 @matthieu.bsky.team Protocol Engineer at Bluesky. Building the open social web on AT Protocol. Into web standards, OAuth, TypeScript, and over engineered code.
Dad, gamer, Dire Straits fan, sailor and beer enthusiast.
From Brussels 🇧🇪
Nick Hedley @nickhedley.bsky.social Editor of The Progress Playbook: https://theprogressplaybook.com
We focus on proven climate and sustainable development solutions.
Email me for collaboration opportunities: nick.hedley@theprogressplaybook.com
Ollie Wearn @olliewearn.bsky.social Conservationist & scientist w/ Snow Leopard Trust. Wildlife monitoring | Data analytics | Camera traps | Conservation tech | Cats | Carnivores | Primates | Tropical forests | Asia
Atmosphere Community @atmosphere.community atproto ecosystem. AT Community Fund, Tech Talks, and other social & community events content.
Previous handle @atprotocol.dev, now actually dev focused!
#AtmosphereConf is a wrap! See https://atmosphereconf.org for talks & videos
verdverm @verdverm.com interested in atproto, cuelang, agents, and building a better future
currently ruminating a number of micro projects
my swiss army knife: https://github.com/hofstadter-io/hof
https://verdverm.com | https://github.com/verdverm | https://cuetorials.com
Causal Islands Conference @causalislands.com The future of computing
- Berlin, October 2024 https://berlin.causalislands.com/
- San Francisco, Tiny Talks, Aug 2024
- LA Community Edition, March 2024
- Toronto, April 2023
“Advocating widespread dissatisfaction with computing”
Django news @djangonews.bsky.social Weekly Django news, articles, projects, and more. Lots of Django, Python, and anything that's web-focused. Run by @webology.bsky.social and @wsvincent.bsky.social
Subscribe to our newsletter at https://django-news.com
https://jobs.django-news.com
Matt Levine @matt-levine.bsky.social the money stuff guy
Sean Skunk-Cabbage (Chou-Puant) ⚓ @moldybasil.bsky.social Distressed of Conscience
Biking, walking, and taking the bus in Providence Rhode Island | Dense housing advocate | I think about plywood boats and mushrooms he/him
Ask me about systematics or plant diseases
Jim Koopman @jimkoop.bsky.social Architect living on Garigal land | Density not Sprawl | Mobility Disruption | Energy Disruption | Eucalypt species | Bush regeneration | Permaculture | Postecoglou follower | Slava Ukraine | Incredulous Trump/Hanson observer |
Dr William Tozer | RIBA ANZIA 📍 @williamtozer.bsky.social Critic, educator, researcher, architect | Posting daily about architecture | Bartlett UCL PhD | also studied RMIT, University of Auckland | Founder of William Tozer Associates @williamtozerassoc.bsky.social
Paul Frazee @pfrazee.com CTO at Bluesky. Not a nerd.
Alt National Park Service @altnps.bsky.social The official "Resistance" team of U.S. National Park Service. Our website: www.ourparks.org
Matt Jungclaus @jungclaus.bsky.social ➡️ Embodied carbon enthusiast in Colorado 🌱🏢🏡🧱
➡️ #Research, consulting, and advocacy with a focus on #embodiedcarbon and #lifecycleassessment for #buildings
➡️ Also, a dad building a cabin in the mountains 🗻👷♂️🛠️
➡️ Also also, a sax player 🎷🎵
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/
The Daily Beast @thedailybeast.bsky.social Independent. Intelligent. Influential. Send tips to tips@thedailybeast.com
Ryan Broderick @ryanhatesthis.bsky.social Chilling online. I write a newsletter called Garbage Day.
Dave Vetter @davidrvetter.bsky.social Climate and sustainability writing and communications; duck monitor.
Mike Barker - MicroGrids Matter ? @microgridmike.bsky.social Vehicle2Building2Grid = V-to-the-B-to-the-G
-MicroGrids, Batteries, RoofTop PV
-Smart Local Energy Systems
-MicroGrid Training
http://linkedin.com/in/mikebarker/
Passive House Association of Ireland @passivehouseie.bsky.social The Passive House Association of Ireland is a not-for-profit organization promoting the Passive House standard, educating the public on low-energy building solutions for Ireland and its citizens.
Drew Tozer @drewtozer.bsky.social Installing heat pumps for comfortable, healthy, sustainable homes in Toronto, Canada.
Every HVAC contractor is a climate company.
https://foundryheatpumps.ca
Elrond Burrell @elrondburrell.bsky.social Architect + Passive House & Low Carbon expert | BUSINESS: http://via-architecture.net | BLOG: http://elrondburrell.com | Born at 331.3 ppm CO2 📈🌏
John Butler @jbsustbuild.bsky.social Sustainable Building Consultancy.
Geek for Hire. Passivhaus, Low-carbon building & retrofit. Late diagnosed autistic. He/him.
For the music/performance version of me go to @the-woodlouse.bsky.social
https://www.sustainablebuildconsultancy.com
Lloyd Alter @lloydalter.bsky.social Author of"The Story of Upfront Carbon," reformed architect and developer, teacher of sustainable design at Toronto Metropolitan University. https://lloydalter.substack.com
Philip Oldfield @sustainabletall.bsky.social Head of School at UNSW Built Environment and Professor of Architecture. Writer, researcher & teacher, tall buildings, climate change, embodied carbon, cities
Chris Higgins @cahiggins.bsky.social Supporting Electric Load Growth. Building Policy. Helping homes & buildings improve, Heat Pumps, Passive House, CHBA Net Zero, & better building code.+ EV's, Civil Service, & a Safer City.
archtesta @archtesta.bsky.social Architect / Dad / Cyclist / climate emergency worrier. Born at 337.1 ppm CO2
Juraj Mikurcik @jurajmikurcik.bsky.social Architect living in rural Herefordshire. UK support for ecococon.eu straw wall panels and Ecological Building Systems. Rides bikes.
Living in a 100% electric bio-based passivhaus with zero energy bills, see the blog: oldholloway.wordpress.com
Michael Burchert @michaelburchert.bsky.social 🇪🇺 Educator, Speaker, Builder, Activist. Regenerative construction.
That #strawhouse guy.
Fixing mistakes @ built environment. Independent #Bauwende construction revolution advocacy, english & german word salad, enjoy! https://linktr.ee/michaelburchert
Alan Clarke @alanclarke.bsky.social Energy & buildings engineer, Passivhaus, mountain biker, veg gardener/rewilder
Kate de Selincourt @katedes.bsky.social Writer - sustainable building and the environment
Mark Siddall @marksiddall.bsky.social Architect @ http://LEAP4.it • Passivhaus Pioneer • Technical Advisor • Researcher • Educator • Dad • CO2 329.7 ppm
Bronwyn Barry (she/her/they/them/it/thingumie) @passivehousebb.bsky.social Searching for comfortable buildings in a democracy that works. (Optimist.) E-bike loving architect building Passive House in a climate that thinks it doesn’t need it. (Persistent.)
International Passive House Association (iPHA) @ipha.bsky.social The global network of #PassiveHouse professionals and enthusiasts working to promote the Passive House Standard
https://feedlinks.link/ipha
Passive House Plus @phplus.bsky.social Award-winning green building magazine
For: comfortable, healthy, low carbon buildings with tiny energy use.
🇮🇪+ 🇬🇧 print editions + projects from whole 🌎.
Passive house / Passivhaus
Tomato / tom8to
www.passivehouseplus.co.uk
Andrew Michler @andrewmichler.bsky.social I design buildings at Hyperlocal Workshop hyperlocalarch.com
I wrote a book [ours] Hyperlocalization of Architecture
Also co-creator @ Sol.coffee
Es Tresidder @estresidder.bsky.social High-energy mountain sports, low-energy building design. Runner, climber, ski-mountaineer, building physicist & Passivhaus designer. EV driver.
Currently finishing up my own EnerPHit house project. 
Mark Hogan @markasaurus.bsky.social Architect in San Francisco. Principal at OpenScope Studio (openscopestudio.bsky.social). Working in SF + LA. Housing, #Architecture, London, Buffalo and #gardens.
Twitter: https://twitter.com/markasaurus
Mastodon: https://mastodon.social/@Markasaurus
Rob Bernhardt @robbernhardt.bsky.social Husband, dad, grandfather, retired NGO CEO, enviro & bike junkie. Victoria, BC
Ian Robertson @ianwrob.bsky.social Modest egomaniac + secular humanist misanthrope + erratic Marxist + I design buildings, hopefully passiv, and once climbed Grouse Grind 17 times in a day. Same handle on the bird.
Bryn Davidson - Lanefab @lanefab.com A beautiful home
in a healthy city on
a thriving planet
Lanefab Design / Build
Oori Architecture
B.Eng M.Arch
www.Lanefab.com
Vancouver BC
#ThickWallsAreSexy / #SingleStair / #ElectrifyEverything / #Passivhaus
Dave Karpf @davekarpf.bsky.social Political Communication Prof at GWU. Flaming Hydra.
I write about the history and future of tech and politics. My next book, Vaporware, Inc.: How Silicon Valley Sells the Future to Control the Present, arrives on January 12, 2027.
Davekarpf.beehiiv.com
Melissa Kline Struhl @mekline.bsky.social Executive Director of childrenhelpingscience.com, Psych-DS maintainer, strong feelings about data management & collaborative science. My last name is "Kline Struhl" (she/her)
MeidasTouch @meidastouch.com The fastest growing independent news network in the world. We cover breaking news, politics, law and more. We are unapologetically pro-democracy.
Jim Acosta @jimacosta.bsky.social Independent Journalist. Host of “The Jim Acosta Show” on Substack, YouTube and Apple Podcasts: Former Chief WH Correspondent. Author. https://substack.com/@jimacosta?r=lpd3z&utm_medium=ios&utm_source=profile Inquiries: go to jimacosta.com
Gary Marcus @garymarcus.bsky.social AI and cognitive science, Founder and CEO (Geometric Intelligence, acquired by Uber). 8 books including Guitar Zero, Rebooting AI and Taming Silicon Valley.
Newsletter (100k subscribers): garymarcus.substack.com
David Belliard @davidbelliard.bsky.social Maire du 11e arrondissement de Paris & président de la RIVP 🌈🌻☺️ Papa et fier
Dr Susan Oliver (PhD) @drsusanoliver.bsky.social Scientist who is passionate about correcting misinformation
https://www.youtube.com/backtothescience
Mark Cuban @mcuban.bsky.social Entrepreneur
Costplusdrugs.com
LunchBox Sessions @lunchboxsessions.bsky.social A bold take on hydraulic & electrical training. Interactive simulations, lessons, and videos. Clear explanations. Powerful graphics. Try it for free.
LunchBoxSessions.com
Margaret Harris @drmlharris.bsky.social Award-winning science journalist at Physics World magazine @physicsworld.bsky.social. Also available as @DrMLHarris@mastodon.social. All views on science, politics, history, nonsense, etc. my own.
Vitalik Buterin @vitalik.ca