Ben Raderstorf @raders.bsky.social defend democracy and build homes / policy advocate @protectdemocracy.org / author ifyoucankeep.it / board โช@sacyimby.bsky.social / rash opinions my own
No kings but Sac Kings
๐Sacramento
Ed Mendoza @edmendoza.bsky.social Senior Research Associate at @cayimby.bsky.social
@markandlora.bsky.social @markandlora.bsky.social 
Jeffrey Tumlin ๐ณ๏ธโ๐ ๐ @jeffreytumlin.bsky.social Transport nerd. Recovering city bureaucrat. Introvert. Working to cut COโ, eliminate traffic violence, advance equity, and strengthen local economies. Former SFMTA, OakDOT, Nelson/Nygaard. SF.
Westside Backyard @westside-backyard.bsky.social just a millennial, standing in front of a city, asking for an affordable home
Alaina Pitt @alainapitt.bsky.social Bikes, housing, safe streets, people-friendly places
โIf we can build a successful city for children, we can build a successful city for all people.โ
#BanCars
๐Massachusetts
โค๏ธ DC
Jen Nelles @jen-nelles.bsky.social Prof Systems and Spatial Analysis
metro regions | infrastructure | skills | productivity | innovation | systems | governance | bacon | proud Canadian | 50,000 unstoppable watts
Innovation & Research Caucus -Oxford Brookes Business School
Daughter of an Immigrant @luubean.bsky.social THE ONLY THING MORE POWERFUL THAN HATE IS LOVE
but still
FUCK ICE! FUCK TRUMP!
ICE IS NOT LAW ENFORCEMENT. THEY ARE ANTI-AMERICAN THUGS AND MURDERERS
Californian from Old America.
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! ๐
Joey Politano๐ณ๏ธโ๐ @josephpolitano.bsky.social Writing a data-driven newsletter about economics @ apricitas.io
Nuance? In this Economy
Full Employment Stan, Brazilian Coffee Tariff Victim |
Paul Lewis @p-g-lewis.bsky.social Researcher of urban policy & local government/politics. 1st-gen college grad. Not to be confused with other Paul Lewises (the journalist, the architect, the humor guy, the financial advisor, etc.). Skeets don't represent my employer.
Essential Habitat Architecture @eharchitecture.bsky.social Northern California design firm dedicated to distinctive, modern, sustainable homes for people who want outstanding performance without sacrificing style.
Chris Taggart ๐ก โก๏ธ ๐ @christaggart.com Heatpump Papa. Software Engineer. Climate. Cargo Bike Dad.
Building software + communities to accelerate residential electrification.
@electrify613.bsky.social + @ferncomfort.bsky.social
https://electrify613.ca, YOW
Bruce Little @brucedlittle.bsky.social Founder of Grandparents for Our Revolution. Interests include progressive politics, political satire, the Streamline Moderne Era, vintage California citrus crate labels, & local history.
Earth Bound Homes @earthboundhomes.bsky.social Earth Bound Homes crafts enduring homes reflecting our dedication to building healthier, more comfortable and fire/weather resilient homes that are on the forefront of building science. Weโre known as the leading authority in building Passive Houses. 
SPUR @spur-urbanist.bsky.social ๐ฆ Official Bluesky of SPUR
๐ก IDEAS + ACTION FOR A BETTER CITY
๐ a member-supported nonprofit organization
๐ SF + San Josรฉ + Oakland
๐ spur.org
Research, education & advocacy for a more equitable, sustainable, and prosperous region.
Reece Martin @rmtransit.bsky.social Writer, CS Grad, environmentalist and optimist.
Focused on infrastructure, macro-systems, and excellence. Bylines in The Globe and Mail, Maclean's, and Toronto Star. DMs Open.
https://www.thetransitbrief.net/
Prof. Sonia I Seneviratne @soniaseneviratne.bsky.social Professor at ETH Zurich, IPCC WGI Vice-chair.
#Climate #Extremes #Land.
Citizen/mum/scientist. Personal account.
https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter11.pdf
Twitter/X: @SISeneviratne
https://www.iac.ethz.ch/people/sonia
Doug King in San Jose @dekgreen.bsky.social Green building / policy professional. Also post on: affordable housing, sustainability, urban development, San Jose / Bay, interesting science content.
PhD @CMU EPP 2006
Mariana G Pickering @passivemariana.bsky.social Building science communicator | #PassiveHouse + #prefab advocate | Chief Brand Officer + Community Director @bpublicprefab.com | Workforce training leader | Emu Passive Co-Founder | Energy Communities AmeriCorps VISTA alum
David Bonowitz @dbonowitz.bsky.social Buildings. Earthquakes. Public policy.
Functional Recovery <--> Community Resilience.
Giants baseball. Princeton hoops.
contact: djbonowitz (with a 'j') at gmail
Hun Park @climate-nature.bsky.social Communicating science and data, I illuminate the interconnectedness of climate action, biodiversity conservation, and energy policy. I translate complex information into clear narratives to drive informed decisions for sustainable solutions.
Max Dubler ๐ณ๏ธโ๐ @maxdubler.com AICP certified urban planner doing housing policy stuff at California YIMBY. I used to be much cooler. Tradeoffs are real. he/him
๐ San Francisco
Jonathan Welle @wellejonathan.bsky.social Building co-ops in Cleveland to show there is an alternative. www.clevelandowns.coop
Mike Perham @mike.perham.net Software nerd, biking + housing advocate in Portland, OR
Admin of https://urbanists.social/invite/h7sS4a8X
๐ต๐ปโฝ๏ธ๐
@tinman778.bsky.social @tinman778.bsky.social 
Patrick Osborne @patrick-osborne.bsky.social Architect and Passivhaus designer, interested in retrofit and low carbon design
@zharchitects.bsky.social @zharchitects.bsky.social TriBeCa based architecture firm with a modern aesthetic and a focus on Passive House design.
Senator Scott Wiener @scottwiener.bsky.social 6โ7โ California State Senator representing San Francisco ๐ณ๏ธโ๐ โก๏ธ
Policy nerd & chronic legislative overachiever ๐ค
Running for Congress to protect our democracy ๐
Vote Nov. 3, 2026 ๐ณ๏ธ
Get involved โฌ๏ธ
https://linktr.ee/scottwiener
Mark Shapiro @mhshapiro2.bsky.social Scientist - retired physicist with publications in nuclear physics, nucleosynthesis, solid earth geophysics, atmospheric physics, and computational surface physics - creator of YouTube videos on #ClimateChange - APS Senior Fellow - amateur radio op K6OGD
kevin @ think | design | consult @thinkph.bsky.social Passiv Haus - Passive House
Urban and small town life
Building science
Politics as it serves better communities.
Building for the real world.
Assemblymember Chris Ward @asmchrisward.bsky.social Representing CAโs 78th Assembly Dist. (San Diego, El Cajon). Chair of Arts, Entmโt, Sports & Tourism. Chair of @calgbtq.bsky.social. ๐ณ๏ธโ๐๐บ๐ธ
Cmt Policy: http://bit.ly/3IlaBPJ
Website: https://a78.asmdc.org
Dan Bertolet @danbertolet.bsky.social I think it's good when cities are legal, and I work at Sightline Institute to make that happen. My takes on here, though, are no less than 100% mine.
Davina Duerr @davina425.bsky.social Mom who cares about kids, kindness, climate change and the common good. Letโs build more housing and stronger communities. Views are my own. WA State Rep. for the 1st Dist. who also loves her e-bike.
Maria Popova @mariapopova.bsky.social Creator of The Marginalian (once upon a time called Brain Pickings). Lover of books and tress. Petter of moss. Wonderer. Also: almanacofbirds.org
Meghan @ormeghan.bsky.social Days: fundraising to fix the buildings part of climate crisis. Extra time goes to books, bikes, #RCTID, #BAONPDX, #COYS.
Sam Saville @samsaville.bsky.social Senior Lecturer in Sustainability, Centre for Alternative Technology, Wales, UK.
Human geographer interested in sustainable futures, energy justice, nature-culture relations, climate change, value, processes of change, transformational adaptation...
Wolfgang Feist @wolfgangfeist.bsky.social Humanist. Physicist. Educator. Engineer.
Energy efficiency is key to solving the climate crisis โ 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,...
Brian Jaffe @brianjaffe.bsky.social Pro-housing, pro-abundance, pro-democracy in Northern CA. Housing ๐ , Health โ๏ธ, Education ๐, & Safety โ๏ธ for all. End corruption โฌ๏ธ Get results โฌ๏ธ.
Jordan Grimes @cafedujord.bsky.social Housing ๐ + transit ๐ + climate ๐
President: Peninsula Young Democrats
Lead Member: Peninsula for Everyone
Work: Greenbelt Alliance
Good opinions mine, bad opinions someone else's. YIMBY.
Joe Garvilla, CPHB - Cypress Construction LLC @cypressde.bsky.social Builder and Building Science nerd. Stanch New Urbanist rallying for more flexible zoning regulation. Phius Certified Passive House Builder. www.CypressDE.com
Esther Rovira Architect @estherrovira.com Positive Home Design Worldwide ๐๐
If in Spain (Barcelona & Mallorca) ๐ we find property or plot to design & build your home ON budget ๐ท with finance & fixed rate ๐ฑ
https://era.archi/en/move-to-barcelona-spain-from-usa/
#Architect #moveToBarcelona
passivhausMAINE @passivhausmaine.bsky.social Making Maine homes more resilient, sustainable, healthy + affordable through local, regional, national and international partnerships.
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 ๐ฅ
DearMariana @dearmariana.bsky.social Based in #Wyoming and #Washington ๐ฆ๐ธ๐
Studio OFFBEAT | Art meets sustainable architecture @studio-offbeat.bsky.social
Artistic impact for sustainable change in our built environment.
www.studio-offbeat.com
@phmnorg.bsky.social @phmnorg.bsky.social 
@timeian.bsky.social @timeian.bsky.social 
Kyle Baptista @kylebaptista.bsky.social VP Community, Mozilla Foundation.
Matt Hutchins AIA @matthutchins.bsky.social Principal at CAST architecture, urbanist advocating for housing options, 15-minute cities and sustainable construction. Passivhaus proponent. Former AIA Seattle President and Seattle Planning Commission Co-Chair
Olivia R Williams @oliviawilliams.bsky.social Former Floridian in Madison (WI) using Geography PhD to tweet about housing, community land trusts (CLTs), transit, & bicycles.
@joshreimer.bsky.social @joshreimer.bsky.social 
Kate Macfarlane @katemacfarlane.bsky.social Seattleite. Likes: maps, dogs, plants, ice cream, walkable cities. Dislikes: fascist takeovers, climate change, most zoning, beets
Hawking whistles since 2025 (@wawhistles.bsky.social)
Daniel McQuillen @dmcq.bsky.social Indie software dev. Data validation. Energy efficient buildings. e-Learning. Sustainability. validibot.com โ modelsandpatterns.org โ mcquilleninteractive.com
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
Sammy Roth @sammyroth.bsky.social I write Climate-Colored Goggles, a newsletter about climate & culture. Former L.A. Times climate columnist and Desert Sun energy reporter. Also hosted Boiling Point and The Hatch podcasts.
Find me at Dodger Stadium, Disneyland or hiking in the mountains.
Connor Stein @connor-stein.bsky.social 
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
Jeff Baker @jwbee.bsky.social Notorious GIS reply guy
YIMBY
I will come to your hearing, Berkeley politician
Vuvuzela owner
Father
@jeffinatorator on certain bird sites
B.PUBLIC Prefab @bpublicprefab.com Imagine Building Differently
We are a Public Benefit Corporation that enables healthier, climate-friendly homes for more people by providing high-performance prefabricated assemblies that simplify and speed new construction. 
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
Fi Daisy G @fidaisyg.bsky.social Engineering Academic, Chartered Structural Engineer, Open University Staff Tutor, global citizen living in UK, Mum, she/her.
EcoCocon @ecococon.bsky.social A Wall System Designed by Nature. Healthier and more sustainable living combined with exceptional energy efficiency.
https://ecococon.eu/
Scottish Ecological Design Association @scotecodesign.bsky.social SEDA shares knowledge, skills and experience of ecological design and promotes sustainable thinking and behaviour.
https://seda.scot
MarkRoweLondon @markrowelondon.bsky.social Here for Politics, Climate Breakdown, Architecture, Arsenal, and everything else. He/Him
Gail Halvorsen @gailhalvorsen.bsky.social Principal, Halvorsen Architects
Chair, SEDA Land (Scottish Ecological Design Association)
Catherine Ruddell @catherineruddell.bsky.social Mรฉtis/Settler (she/her) - Artist, Comms Strategist, Indigenous Coach and Cultivating Safe Spaces Facilitator.
Fiona Clandillon @plandillon.bsky.social Head of Development in Scotlandโs Fastest Growing Local AuthorityTM. Affordable housing. Civic spaces. Sustainable, accessible places.
๐ฎ๐ช in ๐ด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ
๐ด, ๐ and Point Break are some of my other interests. Views my own etc.
Rebecca Solnit @rebeccasolnit.bsky.social Writer of books. Guardian columnist. Newsletter at MeditationsInAnEmergency.com. Board member, Third Act and Oil Change International.
Joanna Gubman @joannagubman.bsky.social San Francisco urbanist and ๐ข. Views are my own.
@tozeroandbeyond.bsky.social @tozeroandbeyond.bsky.social 
Cary Westerbeck @caryw.bsky.social Architect, developer, builder, placemaker, cyclist, Urbanist, planning commissioner seeking to build civilization...the neighborhood is the amenity. LGBTQIA+ & Black Lives Matter ally, keeping it real in Bothell, WA.
Karen Benjamin @kallienebenjamin.bsky.social Historian at Elmhurst U, UW Madison + UT Austin alum
Good Parents, Better Homes, and Great Schools: Selling Segregation before the New Deal available July 2025 from UNC Press 
Mike Tondre โ๐ @mltondre.bsky.social English Prof. Oil (Bloomsbury, Object Lessons series), Oil! (Penguin), The Physics of Possibility (U of Virginia)
https://www.bloomsbury.com/us/oil-9781501386626/
Sarah Finch @sarahfinch.bsky.social Writer, editor, climate campaigner. Born at 319 ppm.
Fighting fossil fuels with @wealdactiongroup.bsky.social and championing the Atlantic Salmon with @tidelines.bsky.social.
Dr Adam Levy @climateadam.bsky.social Climate scientist, journalist, YouTuber, Adam ๐ณ๏ธโ๐
https://www.youtube.com/ClimateAdam/
https://www.climateadam.com
Liz Adams @lizadams.bsky.social Air Quality Modeler and Trainer. To err is human, double-checking is helpful.
Annie Leymarie @annieleymarie.bsky.social Nature / Climate / More-than-humans / Degrowth / Social justice / Food, Farming and Land Use / Energy / Retrofits / Transport... with typos
London
Torsten Lรผtten @torstenluetten.bsky.social *@318.45 ppm CO2. Private posts on #MotherOfAllTasks: trying to protect my daughter and biodiversity in general, preparing for impact. #TeamCollapse
Professional contribution: utility scale solar thermal & MW heat pumps.
D Fletcher Dunham @dfdunham.bsky.social architecture, social housing, & posts about bldgs ๐ข๐๐ Los Angeles
Emily S. Damstra @emilydamstra.com โข Science illustrator, coin designer, native plant gardener, goldenrod enthusiast
โข Great Lakes region of N. America
โข she/her
emilydamstra.com
Stephen Heard @stephenbheard.bsky.social Evolutionary ecologist & Boggle aficionado. Author: The Scientist's Guide to Writing; Charles Darwin's Barnacle and David Bowie's Spider. He/him.
Blog and book links: scientistseessquirrel.wordpress.com
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
Sรธren 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.
David Zipper @davidzipper.bsky.social Thinking, writing, and speaking about transport, cities, and tech. Contributing Writer @ Bloomberg and cohost @ Look Both Ways w/David & Wes. Working on a book about congestion pricing. linktr.ee/davidzipper
Newsletter & contact info: www.davidzipper.com
Dr Sue Oosthuizen @drsueoosthuizen.bsky.social Professor (Em.) of Medieval Archaeology, University of Cambridge.โจEarly #medievalEngland c400-1200CE; #commonrights & governance; #fen #watermanagement; #landscapeโฑ๏ธ& ๐๏ธ. #medievalsky
Research & publications @ https://profsusanoosthuizen.wordpress.com
Toon Dreessen @toondreessen.bsky.social Architect Husband Dad he/him; past pres @oaarchitects.bsky.social; president @architectsdca.bsky.social; writer, public speaker, advocate for #procurement reform; #climatepoli @riseforarch
LA ๐บ๐ฆ๐ช๐บ @labruunt.eurosky.social European first, Bedenken second.
โDie Polykrise ist Europas strengster Lehrer: Entweder wir handeln gemeinsam โ oder wir scheitern gleichzeitig." - im Stil von Jean Monnet
Gabrielle Huston @talktogabrielle.bsky.social CBC Journalist ๐ Ottawa/Sudbury
She/They ๐จ๐ฆ๐บ๐ธ๐ฟ๐ฆ๐ณ๏ธโ๐
gabrielle.huston@cbc.ca
๐ Journalism & Humanities at @carleton.ca Alumna
jenny hay @ajennyh.bsky.social Geography, Data Science, Public History, Anthropology, Climate Action
Coordinator for North America Region of the Climate Heritage Network
Hannah Ritchie @hannahritchie.bsky.social Deputy Editor, Our World in Data
Senior Researcher, University of Oxford
Climate, energy, environment, all things data.
Robinson Meyer @robinsonmeyer.bsky.social Iโm the founding executive editor of Heatmap News, a contributing Opinion writer for The New York Times, and the cohost of the Shift Key podcast.
๐NYC
Curtis Wakandian "Not Going Anywhere " if its F me its FU"๐ @curtischarris.bsky.social Dem Girl Dad, Horror/comic book/Sci-fi film fan, music, wrestling, Silverfox Blerd,semi podcaster, Astros fan ,Alien and Carpenter fan, shit talker, progressive-liberal Harris/Walz2024 forever ๐บ๐ธ
Passive House Accelerator @phaccelerator.bsky.social Empowering Architects & Builders with insights from the #PassiveHouse community to design+build better buildings, faster - while not warming the planet.
Stephen OโShea @architectgp.bsky.social Architect + CPHD, now working in Sustainability. ๐๐ปโโ๏ธ๐ดโโ๏ธ๐โฝ๏ธ Multiple cats & kids. Born at 326 ppm so I got to see David Bowie, James Brown, Stevie Wonder and Prince live.
Header picture by @RiotGrlErin
Brian Siana @briansiana.bsky.social Astronomy Professor at UC Riverside / Chair of the Riverside Board of Public Utilities / Heat pump evangelist
Kate Unger @kateu.bsky.social Climate, clean energy (DG and VPP centric), hope
Personal account