Seth Klein @sethdklein.bsky.social Past Team Lead, Climate Emergency Unit; author of "A Good War: Mobilizing Canada for the Climate Emergency"; columnist w/ Canada's National Observer; former social justice think tank director
https://www.sethklein.ca
https://sethdklein.substack.com
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
Colorado Connector @coloradoconnector.bsky.social Colorado Connector (CoCo), powered by the Front Range Passenger Rail (FRPR) District
🚆 An alternative to I-25 congestion
⚾ A better way to the game/show
🏥 Expand access to essential services
💵 Invest in local communities
ColoradoConnector.com
Project Drawdown @projectdrawdown.bsky.social 🌍 The world’s leading guide to science-based climate solutions.
Visit www.drawdown.org to learn more
Union of Concerned Scientists @ucs.org The Union of Concerned Scientists puts rigorous, independent science to work to solve our planet's most pressing problems.
ucs.org
National Drought Mitigation Center @droughtcenter.bsky.social The Drought Center at the University of Nebraska-Lincoln helps people, organizations and institutions build drought resilience through monitoring and planning. We are the academic partner and web host of the U.S. Drought Monitor.
Trevin Ward @tedger.bsky.social Tedger on the dead bird
I like bikes, I’m from Iowa, ik woon in Amsterdam. 
Adventure with Claus @adventurewithclaus.bsky.social ... adventurer, hiker, backpacker, bicycle tourer, traveler, crazy, and a dad | https://adventurewithclaus.blogspot.com/
Homepage: https://adventurewithclaus.blogspot.com/
Jerome Alexander Horne @jahorne.bsky.social 🏙️🚶🏾♂️🚍🚏🚇🚲💪🏾🏳️🌈 (He/Him) Queer Urbanist - Transit Professional - Transit Nerd - Community Connector
Interests: Cities, Cycling, Walking, Architecture, Museums, Performing Arts, Trains, Buses, People
All views are mine.
https://www.instagram.com/jahorne
Dave Amos - City Beautiful @citybeautiful.nebula.tv Assistant professor, City and Regional Planning, Cal Poly SLO
Producer of YT channel City Beautiful
@tigard-stripes.bsky.social @tigard-stripes.bsky.social Car-free bike Dad with over 30,000 miles travelled on Bullitt cargo bikes. Getting more kids on bikes through bicycle education and advocacy. Reduce car dependency. Increase public transit and micro-mobility. Safe Routes to School and Bike Bus! 😎🚲🥰
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
City Thread @citythreadorg.bsky.social Strengthening the connections in our communities is more important than ever. That’s why we’re here.
chilito @hectorarbuckle.bsky.social Iowan in NYC, Washingtonian at heart. Born this side of the millennium. Italianate architecture stan.
Patrick Siegman @siegman.biz Transportation planner and economist. Founder, Siegman & Associates. Formerly Principal & Shareholder at Nelson\Nygaard. LinkedIn: https://tinyurl.com/5cekhrjh
Jarrett Walker @humantransit.bsky.social Public transit planning consultant and commentator. Author of the book “Human Transit” and the blog HumanTransit.org. The consulting firm is jarrettwalker.com. Also obsessed with literature and plants.
Momentum Des Moines @momentumdsm.bsky.social Urbanism and transit in Des Moines and Iowa.
www.momentumdsm.org
Iowa Association of Railroad Passengers @iowarail.bsky.social Iowa Association of Railroad Passengers (IARP) was formed in 1981 as a voice for Iowa rail passengers
https://www.iowarail.org/
Elliot Klimowski @elliotklimowski.bsky.social Just a humble PA announcer and urbanist trying to make sense of it all...and climb all your mountains ;)
Strong Des Moines @strongdesmoines.bsky.social MISSION
We advocate for resilient neighborhoods and champion walkable streets, abundant housing choices, and fiscally sound growth.
VISION
A Des Moines where every neighborhood is financially strong, walkable, and loved by the people who live there.
Alec @alecondesbus.bsky.social Urbanism in Iowa…yeah I know.
Founder of www.momentumdsm.org
Your Local Epidemiologist @ylepidemiologist.bsky.social 👩🏻🔬 Simplifying public health with data-driven insights
💡 Helping you make informed health decisions
🎓 MPH, PhD
👇🏻 Get weekly science-backed updates
https://yourlocalepidemiologist.substack.com/
Bentley ****TALK CLIMATE**** @bigclimate.bsky.social Co-founding member of the @calgaryclimatehub.ca & host of the #ClimateLens podcast. Posts are my own. #TalkClimate: you're not alone, you're in the majority. #yyc #ClimateChange #ClimateSky
@getaroundcabooltur.bsky.social @getaroundcabooltur.bsky.social 
Alfred Twu @alfredtwu.com Berkeley Rent Board Commissioner (@alfredtwu.net), California Democratic Party AAPI Caucus & CA Dem Renters Council Board, East Bay architect & commercial artist. Reblue/follow/like does not equal endorsement.
art: http://alfredtwu.com
Laura G Mitchell @lauragmitchell.com Parent & safe streets advocate 🚲🚶🏻🚌
Founder of the @mcbl.bike
League Certified Cycling Instructor
Minneapolis, MN
lauragmitchell.com
StreetsblogMASS @mass.streetsblog.org Connecting people to information about how to improve walking, biking, and transit across the Commonwealth
National Weather Service @nws.noaa.gov Official Bluesky account for NOAA's National Weather Service.
MBTA @mbta.com The official Bluesky account of the Massachusetts Bay Transportation Authority (MBTA)
mbta.com
Grist @grist.org We're a nonprofit news org dedicated to telling stories of climate solutions and a just future. Get our journalism in your inbox: https://grist.org/subscribe/
Boston Cyclists Union: BCU.bike/act @bikeboston.bsky.social Organizing for people-first streets and a connected, protected, equitable bike network across greater Boston BCU.bike/act
Learn about BCU Labs! Join our Mailing List! Join us for fun rides and bike activism to make Boston the best cycling city in the US!
Petru S. 🚄🚦🚲 @sofio.bsky.social He/Him | NU 2028 (civil engineering) | *Posts/Likes/Etc. reflect my own views*
Sarah Goodyear @sgoodyear.bsky.social Writer. New Yorker. Co-host, The War on Cars podcast. Our book, Life After Cars: Freeing Ourselves from the Tyranny of the Automobile, is out now. lifeaftercars.com
Ryan Nobles @ryanobles.bsky.social NBC News Chief Capitol Hill Correspondent
Hackney Cyclist @hackneycyclist.bsky.social Hackney-based. Advocating for cycling that’s as safe, convenient, and comfortable as it is in the Netherlands. I share my own media of Dutch street life, hoping to inspire more liveable communities everywhere.
PBS News @pbsnews.org We are home to the PBS News Hour and @washingtonweekpbs.bsky.social.
Subscribe to our newsletter: https://to.pbs.org/47dcMEJ
Support our work: https://bit.ly/3IXO4xW
More: linktr.ee/pbsnews
Lisa Desjardins @lisad.bsky.social Correspondent for PBS NewsHour. Lover of Chester Arthur. Lucky mom, sister, wife and former SC state fair baking contest first place winner.
Families for Safe Streets @fam4safestreets.bsky.social We've lost loved ones or been injured in a car crash. We're confronting traffic violence across the country through advocacy and support. https://www.familiesforsafestreets.org/
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
Bill Schultheiss @schlthss.bsky.social Transportation Engineer. Hopeful for a better future where we take the climate crisis seriously, regulate wealth inequality, and create a truly equitable and democratic society.
BikeLoudPDX @bikeloudpdx.bsky.social BikeLoud is a nonprofit full of people trying to help Portland be a city where one quarter of all our trips are done on bicycles. Bikes are an equitable affordable solution for our climate emergency. When we ride bikes, we feel better! bikeloudpdx.org
The War on Cars @thewaroncars.bsky.social A podcast about the fight against car culture. Hosted by Sarah Goodyear & Doug Gordon.
Radical Left Congestion Pricing Jihadists.
Our new book, "Life After Cars" is out now.
https://www.lifeaftercars.com/
https://www.patreon.com/thewaroncarspod
Mobycon @mobycon.bsky.social Mobycon is an independent consultancy and research firm specializing in mobility solutions. We take an integrated approach to sustainable mobility to make the world less dependent on cars.
www.mobycon.com
Victor Dover @victordover.bsky.social Town Planner, Urban Designer, Futurist. Past Chair, CNU. FAICP. CNU Fellow. Principal @DoverKohl. Ironman (5x). Past President, Parks Foundation of Miami-Dade
Our Streets @ourstreetsmn.org We work to make biking, walking, & rolling easy & comfortable for everyone.
@coachbalto.bsky.social @coachbalto.bsky.social 
Denver Bicycle Lobby @denverbicyclelobby.bsky.social An all grassroots group advocating for safer streets and sustainable transportation options in the city of Denver, Colorado
Doug Gordon @brooklynspoke.bsky.social Co-author, "Life After Cars,” co-host, The War on Cars. Runner, Disney parks fan (he/him)
Taking a break for the summer.
https://www.lifeaftercars.com
Donate to my 2027 run in support of PPMD:
https://donate.parentprojectmd.org/fundraiser/7001403
John J. Bauters @johnbauters.bsky.social America’s Bike Mayor / #GoOutside / 🌿🐺
Tern Bicycles @ternbicycles.com We build bikes with an eye to changing the world. 🌎
Read more about us here: TernBicycles.com
Carter Lavin @carterlavin.bsky.social Bay Area transit organizer. Trainer of activists, author of "If you want to win, you've got to fight: a guide to effective transportation advocacy" https://press.princeton.edu/books/paperback/9781642833737/if-you-want-to-win-youve-got-to-fight
Jos Sluijsmans @jossluijsmans.bsky.social International Cargo Bike Festival @cargobikefestival.bsky.social
https://cargobikefestival.com/
Cycling advocacy, Fietsdiensten.nl, Fietslogistiek.nl
De Filmende Fietser @filmendefietser.eurosky.social Utrecht 🇳🇱 based fietser | All about Dutch cycling and bike advocacy | Fietsfluencer | Cycling guide | Board member Fietsmaatjes Utrecht 🚲 📹
www.defilmendefietser.nl
Brompton Bicycle @bromptonbicycle.bsky.social For 50 years we’ve been expanding horizons and redrawing maps, so you can go where you’re always welcome.
Brompton. #LifeUnfolded.
Contact our CS Team Online https://www.brompton.com/s/contactsupport
DMs not monitored
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.
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
Natalia Barbour @nataliabarbour.bsky.social Transportation | Cycling | Cities | former academic | past TU Delft & MIT | 🇵🇱
IG: natalia_barbour_phd
www.nataliabarbour.com
Nathan Allebach @nathanallebach.bsky.social creative director. writer. lover of walkable communities.
Ray Delahanty | CityNerd @nerd4cities.bsky.social Plangineer (AICP) when I’m at work, alter ego CityNerd when I’m not. New videos on cities and transportation every Wednesday. Nerd4cities.com | http://linktr.ee/CityNerd
Veronica O. Davis @veronicaodavis.bsky.social Author, Inclusive Transportation: A Manifesto for Repairing Divided Communities
veronicao.com
She/Her #TransportationNerd #InclusiveTransportation 🔺🐘
Ryan Van Duzer @ryanvanduzer.bsky.social I like bikes, bean burritos, and sleeping under the stars
Allen Cowgill @allencowgill.bsky.social Denver, CO. Dad, husband, loves bikes and sustainable transportation. AvGeek, Wx nerd. Volunteer for Moms Demand Action. Opinions my own.
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
Luke Bornheimer (Streets Forward) @lukebornheimer.com Executive Director @StreetsForward.org. Sustainable transportation advocate and community organizer in San Francisco. #BlackLivesMatter
Congress for the New Urbanism @cnunewurbanism.bsky.social CNU envisions a world where cities, towns, and neighborhoods are intentionally designed and managed to foster community, preserve the natural environment, and improve the lives of all people.
Learn more: cnu.org
CNU 34: May 12-16, 2026! cnu.org/cnu34
Oh The Urbanity! @ohtheurbanity.bsky.social More housing, bikes, and transit.
https://youtube.com/@ohtheurbanity
📍 Montreal, Quebec
Peter Norton @norton.bsky.social Historian; author of Fighting Traffic: The Dawn of the Motor Age in the American City, and of Autonorama: The Illusory Promise of High-Tech Driving.
Lucy Maloney @lucymaloney.bsky.social City Councillor with OneCity Vancouver. Road safety advocate, former environmental lawyer, cyclist, parent. Working for you.
Kelsey Huse @kelseyhuse.com Studying City & Regional Planning at University of Memphis. I love my cat Buzz, playing Irish fiddle, and riding my e-bike.
Strong Towns @strongtowns.org We're changing *everything* about the North American pattern of development. Become a member today! strongtowns.org/membership
Megan Kimble @megankimble.bsky.social Texas political economy reporter @houstonchronicle.com, based in Austin.
Author of CITY LIMITS: Infrastructure, Inequality, and the Future of America's Highways
Professionally curious
Cathy Tuttle @cathytuttle.bsky.social I plan cities for people & other living things. I focus on SEA, PDX, Utrecht, women who create cities, bikes, climate. I'm on Boards @bikeloudpdx.bsky.social @streetsalliance.bsky.social & volunteer @ BikeFlip + DeFietsmeesters in Utrecht. She/her. PhD
Peter Flax @pflax1.bsky.social Into riding, writing and complex carbohydrates.
Every opinion stated here is mine—and mine alone. 
A. Zivarts @nondriver.bsky.social Author, When Driving Is Not an Option: Steering Away from Car Dependency
low vision (#nystagmus), bus lover, bike rider
annazivarts.com
#WeekWithoutDriving weekwithoutdriving.org
Nondrivers Alliance nondrivers.org (c3)
Nondriver Action ndaction.org (c4)
Wes Marshall @wesmars.bsky.social doctor, but probably not the kind of doctor you are looking for...
www.wesmarshall.org
www.kbate.org
https://lookbothwayspod.podbean.com
www.youtube.com/@LookBothWaysPod
Streets For All @streetsforall.org Building a transportation revolution in Los Angeles 🚎🚌🚲🛴👩🏻🦽🚶🏾🌳
streetsforall.org
Michael Schneider @michaelschneider.com tali mika sofi’s dad, Kat’s husband, LA native. Urbanist. Founder @streetsforall.org
Travel Smart Campaign @travelsmart.bsky.social Within this decisive decade for climate action and decarbonising transport, this global Campaign aims at reducing air travel emissions by focusing on elite and high-emission flying, including business travel, private jets and long-haul flights
Dutch Cycling Embassy @dutchcycling.nl The Dutch Cycling Embassy (DCE) supports cities and regions worldwide in making cycling a natural part of daily life.
dutchcycling.nl
Living Streets @livingstreets.bsky.social We are Living Streets, the UK charity for everyday walking. #NationalWalkingMonth #WalkThisMay #WalkToSchool #BanPavementParking
#BetterCrossings
Jeff Speck @jeffspeck.bsky.social Urban Planner, Partner in Speck Dempsey, author of Walkable City, Walkable City Rules, and other stuff I'd like you to read. 
World Bollard Association™️ @worldbollardassoc.bsky.social The official Bluesky account of the World Bollard Association™️. MERCH STORE - https://worldbollardassociation.team-togs.com/shop/storeorderform.php
Bike Lane Uprising @bikelaneuprising.bsky.social Report bike lane obstructions with our mobile app from anywhere in the USA & Canada.
BikeLaneUprising.com
Stacey Champion @champpr.bsky.social PR, Comms, Strategy, Mama 🐻, Speaker, Writer, Activist, Advocate, Sustainability ♥️’er & Fighter 4 People + 🌎. Everyone needs a Champion. www.champion-pr.com
Island Press @islandpress.bsky.social Island Press, an imprint of Princeton University Press, publishes books on today’s most pressing environmental issues, including climate and energy, ecosystems, environmental policy, and more.
https://press.princeton.edu/imprints/island-press
Kimberly Nicholas @kimberlynicholas.bsky.social Climate scientist, Lund University.
Creator, climate action podcast 🎙️ CLIMATE ACTUALLY & guide📱 SHIFT (jointheshift.earth).
Bestselling author, UNDER THE SKY WE MAKE 📖.
Newsletter: wecanfixit.substack.com 💌.
Fietser Nicole @goingdutchdenver.bsky.social I’m a transportation cyclist, safe streets advocate, crossing guard and New Orleans native living in Denver.
Clarence Eckerson Jr./Streetfilms @streetfilms.bsky.social The OG Urbanist Youtuber! Prolific Streets Documentarian since late 1990s. All good things: biking, walking, transit, open streets & LTNs! Visit www.streetfilms.org for more!
All tweets only represent my personal point of view.
Dave Walker @davewalker.bsky.social Diagrams, etc. Author, cycling cartoonist.
Best work is in my free newsletter: https://diagramclub.substack.com/
Megan Ramey @bikabout.com Safe Routes to School Manager 4 Hood River. Bike 🚲 travel writer & map 🗺 maker. Scheming on bike 🛏️ hostel in Columbia Gorge. 
tamika l. butler @tamikabutler.bsky.social Nebraska Always.
@StanfordLaw alum. Fighting racism, poverty & injustice. @UCLA Urban planning PhD. Mobility justice & dignity all day. All tweets/views my own.
League of American Bicyclists @bikeleague.org The League of American Bicyclists is leading the movement to build a Bicycle Friendly America for everyone.
Billy Fields @billyistep.bsky.social Likes talking about bikes, cities, and water. Professor of Political Science Texas State University. Views my own. Author: Adaptation Urbanism & Resilient Communities
Mike Lydon @mikelydon.bsky.social Co-Founder @ Street Plans | Co-Author #TacticalUrbanism, Smart Growth Manual, Streets for Pandemic Response + Recovery | Board Member @ Congress for New Urbanism | Creator Open_Streets Project | Léo + Luca’s dad | 📍 Brooklyn, NY 🚲 🚶 🚌 🌆
Steve Mouzon @stevemouzon.bsky.social Architect, Urbanist, Author, Photographer
Lior Steinberg @steinberg.nu Planning cities that make people smile;
Co-founder @ humankind
Author of The Car That Wanted to be a Bike: http://humankind.city/car
📍 Rotterdam, The Netherlands
Parents for Climate @parentsforclimate.bsky.social Australia’s leading advocacy organisation for all who want a safe climate future for our kids to thrive. Authorised by Nic Seton, Parents for Climate, Sydney
Andy Boenau @urbanismspeakeasy.com When I'm not engineering safe & healthy streets, I'm running my mouth about it.
urbanismspeakeasy.com
PlacemakingX @placemakingx.bsky.social 🌏 Global network of #Placemaking leaders facilitating collective learning, advocacy & action for #PublicSpaces.
www.PlacemakingX.org
Humankind @humankindcity.bsky.social We are Humankind. Agency for Urban Change. Creating cities that are human & kind to ourselves, others and our planet. #urbanchange #wellbeing #creativity
📍Rotterdam, the Netherlands