Katie Mack @astrokatie.com Cosmologist, pilot, author, connoisseur of cosmic catastrophes. TEDFellow, CIFAR Azrieli Global Scholar. Domain verified through my personal astrokatie.com website. She/her. Dr.
Personal account; not speaking for employer or anyone else.
Joshua Hind @joshuahind.bsky.social "It's hard to say, it's sad but true, I'm kinda dumb and so are you."
The War on Cars @thewaroncars.bsky.social A podcast about the fight against car culture. Hosted by Sarah Goodyear & Doug Gordon.
Our new book, "Life After Cars" is out now.
https://www.lifeaftercars.com/
https://www.patreon.com/thewaroncarspod
Canada Ministry of Pedestrians @minpedca.bsky.social #WalkPerspective. Here because we need safe walking, wheeling & cycling for everyone in Canadian cities. Posts by Martyn of Kjipuktuk/Halifax.
Waterfront for All (Toronto) @waterfront4all.bsky.social Waterfront for All is a nonprofit grassroots community group in Toronto, dedicated to seeing that our 43 km of urban waterfront is:
Useable. Diverse. Accessible. Connected. Affordable. Attractive. Sustainable.
https://www.waterfrontforall.ca
Jillean McCommons @jilleanmc.bsky.social Memory worker. Assistant professor. Writing about Black activism in Appalachia.
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
Freddie O’Connell @freddieoconnell.bsky.social Mayor of a great city with dedicated funding for transportation and infrastructure that’s also known for music. 🦞
More about what we’re up to at @mayor.nashville.gov.
http://www.nashville.gov/mayor
http://www.readyforfreddie.com
Timothy Caulfield @caulfieldtim.bsky.social Professor of health law and science policy, author, speaker, and commentator. #ScienceUpFirst
Linktree: https://linktr.ee/caulfieldtim
Grant Ennis @grantennis.bsky.social Author of Dark PR: How corporate disinformation undermines our health and the Environment, 2023, Daraja Press. Read it here: http://tinyurl.com/bookdarkpr
Active Towns @activetowns.bsky.social Hi! I'm John Simmerman, founder of Active Towns, a channel dedicated to profiling the people, places, and programs promoting a "Culture of Activity" for "All Ages & Abilities." Learn more 👉 https://www.youtube.com/@activetowns
The Overhead Wire @theoverheadwire.com Jeff Wood is the host of the Talking Headways podcast and the publisher of The Overhead Wire daily newsletter. http://theoverheadwire.com
Sign up for our 20 year old daily newsletter here: https://mailchi.mp/theoverheadwire/trial
Elizabeth Mudenyo @lizisabeth.bsky.social Poet tinkering with playlists and making noisy collages
elizabethmudenyo.com
Jocelyn Lambert Squires @jocelynsquires.bsky.social Toronto-centric voice for architecture and urbanism. Transit nerd. Recovering American. Research, writing, bikes, architect-adjacent. (EN/FR, she/her/elle)
Shirley Leung, PhD @shirleyswirley.bsky.social Climate/water scientist💧🌊
People = Good. Billionaires = Bad.
Eat mango dessert, mask up, land back, save the salmon, imprison no one and house everyone. She/her. Views own
Sara F.L. Kirk @sflkirk.bsky.social Health Promotion Prof @dalhousie.bsky.social. UK export in Kjipuktuk/Halifax, Canada. Pop health, climate anxiety, safe streets. Volunteer with @velocanadabikes.bsky.social, @visionzerokh.bsky.social, @urbantruth.bsky.social. She/her. Views are my own
Reena Mahajan @reenamahajan.bsky.social Founder, Studio Divercity & StreetSmart | Helping replace car-centric urban sprawl with people-centred, water-sensitive & nature-positive cities
Terese Mason Pierre @teresempierre.bsky.social Writer/Poet, Editor. SFF/LitFic. CPO @ Augur. Work in: The Walrus, Year's Best Canadian FSF, Brick. Toronto, Canada. She/Her.
Author of MYTH. Editor of AS THE EARTH DREAMS (House of Anansi, 2025)
www.teresemasonpierre.com
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
Mayor Brandon Johnson @mayorofchicago.bsky.social Father. Husband. Mayor. Building Chicago into the safest, most affordable big city in America.
Evergreen @evergreencanada.bsky.social Better public spaces make us and the planet healthier and happier. We want to see Canadian cities invest in more of them. HQ Evergreen Brick Works in Toronto.
Roxane Gay @roxanegay.bsky.social https://linktr.ee/roxanegay
Writer, editor, publisher, professor. Some people call me a bad feminist and by some people I mean me.
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
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.
Max Dubler 🏳️🌈 @maxdubler.com AICP certified urban planner doing housing policy stuff at California YIMBY. I used to be much cooler. Tradeoffs are real. he/him
📍 San Francisco
Ann Douglas @anndouglas.bsky.social Author of 26 non-fiction books, including NAVIGATING THE MESSY MIDDLE (a book about midlife). Trying to teach myself how to write my first novel. Passionate about democracy and social justice. http://anndouglas.ca
Kate Armstrong @brainchain.ca On a journey trying to find new worlds while sending joy into the ether.
Human 🎧 Shazam 🎧. Sports fan. Anti-racist. 🏳️🌈 🏳️⚧️LGBTQ2S+ Supporter 🏳️⚧️🏳️🌈. From Tkaronto.
She/her.
Co-curator of @womensart2.bsky.social.
Cherice Bock @chericebock.bsky.social Climate policy director at 350PDX; Quaker, professor, writer. PhD, MS, environmental studies; MDiv. Views my own. she/her
Carrie Leilani @rosalei.bsky.social Married, pet-owning mom of 4. Writer, reader, & baker. I run a household, study, & contemplate the future of humanity. JewBu. Social Democrat. #WOKE #ANTIFAscist #RESISTer We MUST do better for our children & the world.🎈💙🌎🌊✡️☯️🪷🐈⬛🐕📚🌁🌅🌄🦋🌈 BLM 🇺🇦 🗽🐞🐝🖼️🌻86 47
Shivaji Shiva @shivajishivalaw.bsky.social Charity lawyer; charity trustee; transport campaigner.
[I cannot access DMs]
Fatima Syed @fatimabsyed.bsky.social Ontario reporter for The Narwhal. Vice-president of the Canadian Association of Journalists. Springsteen, space, sports, sweets
Blair Scorgie 🍁 @blairscorgie.bsky.social Husband, father, planner, urban designer, consultant, sessional lecturer, volunteer, author, advocate, and Torontonian. Views are my own. www.scorgieplanning.com.
Kea Wilson @keawilson.bsky.social Senior editor + advocacy journalist at Streetsblog USA covering the movement to end universal car dependency. Based in STL, reporting nationally. Tips to: kea@streetsblog.org or kwilson.52 on signal. Opinions are my own.
Tari Ajadi @tariajadi.bsky.social Working on transformative justice & social impact in St. John’s, NL. Making my way through.
C40 Cities @c40cities.bsky.social A network of city mayors delivering urgent climate solutions. Protecting the people and places we love. 🌳🌍🌆💚
http://www.c40.org/
@jodellm.bsky.social @jodellm.bsky.social 💚🌎Multi-Solve #Climate faster,
🚺🤝Equity, 🔬💪🏽Jobs, ♿️🚴🏻♂️C40 City Policy https://www.c40.org/
📰FreePress 📲#InternetForTrust
https://www.unesco.org/en/internet-trust
United Nations (17) SDG Goals
https://sdgs.un.org/goals
Andrew @andrewjd.bsky.social Enjoyer of cities and communities, talking and advocating around housing, public and active transportation, and progressive issues, interspersed with hobbies and joy.
Toronto Foundation @torontofdn.bsky.social Our vision is a city of informed, engaged philanthropists accelerating meaningful change for all. torontofoundation.ca
Kerstin Ostermann @kostermann.bsky.social What has place to do with social inequality? PostDoc in Sociology @University Bielefeld & @IAB | neighborhoods | local labor markets | quantitative methods | spatial norms
https://sites.google.com/view/kerstin-ostermann/start
Hey Neighbour Collective @heyneighbourcollective.ca Hi! We're Hey Neighbour Collective. We’re building community, social connectedness and resilience in multi-unit housing communities. #YVR #YYJ #SocialDesign
https://www.heyneighbourcollective.ca/- G g.na @gina.bzky.team Offline until locked accounts and/or “remove follower” are user options.
ChicagoVintageTileFloors @chicagovtfloor.bsky.social 🏳️🌈 🏳️⚧️ It's definitely mostly about the floors. There may be swear words. 🏳️⚧️ 🏳️🌈
@ladybambrick.bsky.social @ladybambrick.bsky.social Torontonian. Canadian.
Chris Hayes @chrislhayes.bsky.social Bronx boy. Cubs fan. Dad, husband, writer, podcaster and cable news host.
The Sirens’ Call: How Attention Became the World’s Most Endangered Resource out now.
https://sirenscallbook.com/
Steve Paikin @spaikin.bsky.social https://stevepaikin.com
Host, "The Paikin Podcast"
Co-host, the "#onpoli podcast"
Columnist, http://TVO.org
Columnist, Toronto Star
Host, TVO Today Live
Host, Ontario Chronicle
Author of 10 books.
Pathologies: Leafs, Red Sox, Ticats.
Congresswoman Jasmine Crockett @crockett.house.gov Former public defender, now U.S. Congresswoman, proudly serving the good people of Texas’ 30th Congressional District. ✊🏾 
Michelle Wu 吳弭 @wutrain.bsky.social Mayor of Boston • Mom to Blaise, Cass & Mira • Personal account
michelleforboston.com
Ottawa Architecture Foundation @ottarchfoundation.bsky.social Website: https://ottarchfoundation.com/
Hugh Millward @hmillward.bsky.social Professor Emeritus of geography & environmental studies, Saint Mary's University, Canada.
Interested in mapping, urban planning, transportation, time use, Nova Scotia
#geography #location #maps #transportation #urban
Sameer Vasta @sameervasta.bsky.social Unabashedly earnest. Unapologetically enthusiastic. Infinitely curious. (he/him)
Cuckoo Bananas @kayehm.bsky.social Urban Infrastructure Engineer.
326ppm
https://linktr.ee/kayehm
Chris Kluwe @chriswarcraft.bsky.social Troublemaker extraordinaire, CA AD 72 Candidate, www.kluweoc.com
Brian Jaffe @brianjaffe.bsky.social Pro-housing, pro-abundance, pro-democracy in Northern CA. Housing 🏠, Health ⚕️, Education 📚, & Safety ⛑️ for all. End corruption ⬇️ Get results ⬆️.
Katie Hinde @mammalssuck.bsky.social EvAnth, EvMed, & Global Health
I study mothers, milk, & babies
Cheddar Superfan.
"Scarier than a badger"
Opinions my own
Norm Di Pasquale🇨🇦 @normsworld.bsky.social Chair of NoJetsTO. Ford is trying to ram jets down our throat, sign the petition at NoJetsTO.com!
King Williams @iamkingwilliams.bsky.social Atlanta. Your Next Best Friend.
Christof Spieler @christofspieler.bsky.social Director of Transportation, Madison, WI; Author of “Trains, Buses, People: An Opinionated Atlas of US and Canadian Transit,” Island Press, 2021, “Transportation and the Shape of Cities,” Island Press, 2026. (he/him) PE/AICP/LEED AP (Views are my own.)
Dr Grace S Peng @gspeng.bsky.social Same interdisciplinary scientist as on the other sites with the same handle. Chemistry, math, physics, meteorology, GIS, data whisperer.
Natural resources director, League of Women Voters of Los Angeles Co. She/Her
https://badmomgoodmom.blogspot.com/
Families for Safe Streets @familiesforsafestreets.org Individuals who have lost loved ones or been injured in a crash confronting traffic violence through advocacy and support. #EndTrafficViolence
FabCityCrissy @fabcitycrissy.bsky.social Transit, urbanism, and cities
Genevieve Carpio @drgenacarpio.bsky.social Professor, Writer, Learner | Race, History, California
Author Collisions at the Crossroads: How Place & Mobility Make Race, http://bit.ly/collisionsbook
Madeleine Bonsma-Fisher, PhD @mbonsma.bsky.social Transportation data scientist at the University of Toronto, physicist at heart.
I post about bikes and safe streets, local politics, and sometimes science. She/her.
Kate Lowe (she/hers) @kateontransport.bsky.social Mobility justice/transportation equity/urban planning and policy. Chicago!!! Proud union member (UIC United Faculty). Day job @ @uiccuppa.bsky.social
Azure Magazine @azuremagazine.bsky.social AZURE is an award-winning magazine with a focus on contemporary architecture and design. Launched in 1985.
Dr. Camilla A. Hawthorne @camillahawth.bsky.social Associate Professor of Sociology and Critical Race & Ethnic Studies at UC Santa Cruz. Author of Contesting Race and Citizenship (Cornell) and co-editor of The Black Mediterranean (Palgrave) and The Black Geographic (Duke). Knitter, accordioness, aerialist.
Sarah J. @sjinstp.bsky.social Big fan of human rights. Asking too many questions.
Left Omaha —> St. Paul for a values alignment w/@ScottBl8ke, our pups, plants, and wheeled contraptions. SJstartsit.com
Will Norman @willnorman.co.uk London’s Walking & Cycling Commissioner
Working with the Mayor, TfL & boroughs to build a safer, greener & healthier city.
Posts, errors & typos all mine.
Jeff Goodell @jeffgoodell.bsky.social Author, NYT bestseller THE HEAT WILL KILL YOU FIRST | Guggenheim Fellow | Contributing Writer, ROLLING STONE
Julian Agyeman @julianagyeman.bsky.social Critical urban planning professor @ Tufts UEP. From Yorkshire UK, now living in Cambridge MA. Originator of the concept of #justsustainabilities. Editor-in-Chief of Local Environment. Website: julianagyeman.com
Navneet Alang @navneetalang.com Editor on the Opinion team @ Toronto Star. Pitch me at nalang@thestar.ca.
Writer, columnist, bylines all over. PhD. Anglo-Indo-Canadian, each in equal measure. https://navneetalang.com/
Jess Zimbabwe @jzimbabwe.bsky.social Architect, planner, and Executive Director of Environmental Works Community Design Center in Seattle. Adjunct faculty at UW. Also: cheese, parrots, travel, music, housing, transit, maps, books, dogs, politics.
Tom Holub @bike-lab.org @oaklandbikelab elsewhere. Bicyclist, unicyclist, mobility justice advocate. Generally unpopular opinions about urbanism, often including data.
Skepticism is my beat.
https://bike-lab.org/
https://bayareabikerides.net/
https://totallydoable.com/
Jennifer Dill, Ph.D. @jenniferdillpsu.bsky.social Portland State University
Professor, Urban Studies & Planning
Director, Transportation Research & Education Center
Editor-in-Chief, Transportation Research Record
Emma Huang @emmahuang00.bsky.social Principal Consultant @ InfraStrategies
Formerly LA Metro Innovation
Strategic Planning & Policy for Transit Agencies
Karen Attiah @karenattiah.bsky.social Martial Artist. Executioner of Mediocrity.
Ex-Washington Post.
Substack: https://substack.com/@karenattiah?r=2bz6j&utm_medium=ios
Rogue Radical Professor: @resistanceschool.bsky.social
Ayanna Pressley @ayannapressley.bsky.social Your Congresswoman. Proudly representing the MA 7th. Here to break concrete ceilings & shake the table. Personal account. She/hers. #ChangeCantWait
Justin Garrett Moore @jgmoore.bsky.social I care about people, places, and the planet. Views are my own.
T.J. Maguire @tjhfx.bsky.social Urban Design | Placemaking | Photography
Senior Urban Designer, Evergreen Canada
Tim McCormick @tmccormick.org exploring, reading, noting, writing, gathering. mostly in: Cascadia, Western US, LDN; fairly nomadic. https://tmccormick.org
Olatunji Oboi Reed @theycallmeoboi.bsky.social Founder, Equiticity. Co-Founder, Slow Roll Chicago. 2015 White House Transportation Champion of Change. Racial Equity Tactician. Eu sou Baiano.
Link-In-Bio: eqty.info/m/Oboi
Niall Huffman @niallhuffman.bsky.social I plan the urbs. Land use, housing, transpo, Dodgers, occasional dad content.- H Christopher Hawthorne @hawthorne.bsky.social Architecture critic. Proprietor, Punch List Architecture Newsletter (punchlistmag.com). Faculty Architecture and English @Yale. Prev. Chief Design Officer, City of Los Angeles; architecture critic, Los Angeles Times
Our Streets @ourstreetsmn.org We work to make biking, walking, & rolling easy & comfortable for everyone.
Miriam Goldstein @miriamgoldstein.bsky.social Ocean scientist turned federal policy wonk. Executive Director of the National Ocean Protection Coalition. Views my own, especially the salty ones. Maybe off hiatus? We'll see!
Ernest Owens @mrernestowens.bsky.social Award-Winning Journalist, PABJ President, Philly Mag Political Writer-at-Large, #ErnestlySpeaking Podcast Host/Exec Producer, Author of THE CASE FOR CANCEL CULTURE ✊🏾🏳️🌈 | ΑΦΑ 🤙🏾 https://linktr.ee/mrernestowens
America Walks @americawalks.bsky.social Everyone should be able to move around their community with dignity and freedom. We are a national non-profit supporting change and changemakers at every level. Americawalks.org
Streetsblog L.A. @streetsblogla.bsky.social The Los Angeles vanguard of the Streetsblog publishing empire https://la.streetsblog.org/
NPR @npr.org This is NPR 🎙️
Becky Hartung @beckyhartung.bsky.social producer | professor | transportation advocate
los angeles
Laura G Mitchell @lauragmitchell.com Parent & safe streets advocate 🚲🚶🏻🚌
Founder of the @mcbl.bike
League Certified Cycling Instructor
Minneapolis, MN
lauragmitchell.com
Adam Johnston: Elmwood Fietser @adamjwpg.bsky.social Red River #Metis #Winnipeg #ActiveTransportation, #PublicTransportation advocate. Host of @nntaonumfm.bsky.social on UMFM. Taking Advanced Environmental Management at @uoftscs.bsky.social in May, 2026 (I'm a live person, not a goose!)
Adrian Paul Bryant @adrianpbryant.bsky.social Currently: Lexington Government Reporter @kentucky.com 🗞️ Formerly: CivicLex 🏛️ Always: Proud Kentuckian and Lexingtonian 🐎 (he/him)
Reach out at abryant@herald-leader.com or Signal @abryant_hl.32
--
adrianpaulbryant.com
Adam Greenfield @adamgreenfield.bsky.social Streets, transportation, and land use advocate & organizer, mobilizing for bold change. Based in Austin TX. @SafeStreetsAustin @Rethink35 #NoMoreFreeways
Travers Supports Trans Kids! @drbaseball.bsky.social 
Brendan McEwen @brendanmcewen.bsky.social Working on decarbonizing buildings & transportation. Huge fan o’ nature, cities, art. Tend to use this platform to read & learn, but will try to tweet on occasion.
Daniel Pearson @dpearsonphl.bsky.social I’m an editorial writer for the Philadelphia Inquirer focused on urban policy-transit, housing, and planning
Mac Cunningham @macinthehat.bsky.social Affordable housing developer and policy advocate.
Portland, OR née Baltimore 🏳️🌈
jmaddenmass.bsky.social @jmaddenmass.bsky.social Author of Bittersweet Lane: Creating Home(s) in the American Affordable Housing Crisis @rowhousepub Bicoastal dad. Housing dev consultant. Insufferably Irish-ish. Punk.