Barack Obama @barackobama.bsky.social Dad, husband, President, citizen. barackobamabooks.com
Paul Krugman @pkrugman.bsky.social Ex NY Times, now author of Substack Paul Krugman. Nobel laureate and, according to Donald Trump, "Deranged BUM". Also Research Professor at the City University of New York Graduate Center and senior scholar at the GC-CUNY Stone Center.
Naomi Klein @naomiaklein.bsky.social "End Times Fascism" book coming September 2026.
Doppelganger. This Changes Everything. The Shock Doctrine. No Logo. On Fire.
UBC Professor of Climate Justice.
🔗 naomiklein.org
📬 news.naomiklein.org/newsletter
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
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
Taylor Owen @taylorowen.bsky.social Beaverbrook Chair of Media, Ethics & Communication, Director of the Centre for Media, Technology and Democracy, & Principal Investigator of the Media Ecosystem Observatory, McGill University. Host of the Machines Like Us podcast https://tinyurl.com/9yn836x
How-Sen Chong @how-sen.com Toronto urban environmentalist. 20+ years in climate activism. ADHDer. Fancy degrees from McGill and Yale. Posts my own.
Energy and transit should be free and plentiful. Cars should be an option, not a necessity.
https://how-sen.com/link
Mary Pustejovsky @mpusto.bsky.social Cargo bikes, urbanism, safe streets, climate. Heat pump all the things! Views are my own. #MadisonWI #EverTrue
Thorfinn Stainforth @bxlthor.bsky.social Senior Policy Manager, Environmental Defense Fund Europe. Focused on climate, transport, and urban policy. Brussels based. Opinions are my own.
Paul Angelone @angelone.bsky.social Work at intersection of the built environment, climate, and sustainability but post mostly about urban(ish) things and family adventures! | Washington, D.C.
https://www.paulangelone.com/
Alessandro Rigolon @alerigolon.bsky.social Associate prof of urban planning. Research on green space equity, green gentrification, climate adaptation, and health equity. Love SLC, my family, and the great outdoors. Opinions (good or bad) are my own 🇮🇹🇺🇸 🌩️👀 rJgnW3igNgz7
Dr David R Brake @drbrake.bsky.social Journalist, policy wonk (transit, urban planning, EVs, climate, internet/media regulation), PhD (Media@LSE), dad, newly-adoptive Brightonian
TC (Tirthankar Chakraborty) @tchakraborty.bsky.social Earth Scientist @ Pacific Northwest National Lab; previously Yale (PhD '21); more previously IIT Kanpur (M.Tech '15)
| urban climate | aerosols | remote sensing | heat stress | Google Earth Engine | geospatial | machine learning |
https://tc25.github.io/
Dr. Dasaraden Mauree @dmauree.bsky.social Decarbonisation / urban adaptation / climate resilience / sustainability
Décarbonisation / adaptation des villes / résilience / durabilité
Group leader at WSP
Mauritius 🇲🇺
Switzerland 🇨🇭
France 🇫🇷
Isobel Braithwaite @izzybraithwaite.bsky.social Public health Dr/researcher, London - Climate & health, housing, urban sustainability
Mason Hickok @masonhickok.bsky.social Story Desk Editor at KENS 5 News | Bylines: @mysanantonio.com, KSAT 12 News, The Paisano | Trail running, film, and more | Portfolio: https://authory.com/MasonHickok
Aimee Rawlins @aimeerawlins.bsky.social Seattle-based writer + editor covering climate, cities, housing, transportation, and all the ways they intersect.
John Stehlin @jstehlin.bsky.social Urban/economic geographer focused on the political economy of urban sustainability and transportation, Department of Earth Science and Geography, Vassar College
Liam K McGrath @liammcgrath.bsky.social Forecasting & modelling for sustainable cities Transport for London🚇 Director at Leathermarket CBS affordable housing 🏢 Director se1.solar Community Energy ☀️ Urban history podcast yeoldeguide.com
Personal opinions
liamkmcgrath.com
Helen Macintyre @drhelenmac.bsky.social Principal Climate Change Scientist working on climate change & health including spatial modelling, urban environment, air quality, heat and cold, and co-benefits of climate action inc nature based solutions. Former geologist. PhD in Atmospheric Chemistry. 
Dr Lizzy Lowe @lizzylowe.bsky.social Working to create sustainable cities 🏙️
& ecosystems full of invertebrates 🐞
Inordinately fond of spiders 🕷️
Research Fellow at ECU 🌱
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.
Mallory Baches @mallorybaches.bsky.social AICP, LEED-AP, CNU-A
Urban design, sustainable cities, ND Football
Mom, President of @cnunewurbanism.bsky.social
@ox.ac.uk and @ndschoolofarch.bsky.social alum
www.cnu.org
Andy Barenberg @andybarenberg.bsky.social Economist. UMass Amherst/UMKC trained. Bike Commuter. Soccer Coach. Currently focused on making cities equitable and sustainable. 
Nina Kelly, PhD @nina-eliz.bsky.social asst prof of organizational communication | civic info & political participation/communication researcher | urban & regional planner (AICP) | MI—> CT | flâneuse | views are my own
TR Jeffery @trjeffery.bsky.social I lead a small govt organization at the intersection of water resources, climate resilience, and urban planning. Using nature based solutions to protect water resources and build resilience. Administrator at RPBCWD. Views expressed are exclusively mine.
Niki Frantzeskaki @nfrantzeskaki.bsky.social passion for research of/with cities, climate change, resilience & sustainability * urban nature-based solutions governance * professor of urban & metropolitan transitions & governance * she/her 🇬🇷🇪🇺
Harrison Watt @harrisonwatt.bsky.social Advocating for sustainable cities and active transport 🌳🚲🚶🏳️🌈
2030hub @2030hub.bsky.social Accelerating sustainable cities and business.
World's first Local2030 Hub. Certified B Corp. ❤️ SDGs
Clare Heaviside @climateclare1.bsky.social Associate Professor at UCL working on urban climate, heat and health. NIHR funded population health fellow. Musician, living in Oxford.
Pedro Peterson @peterpedroson.bsky.social I work at the intersection of urban mobility, land use, and climate.
I occasionally post about Brazil, music, and football (the one played with feet).
Views are my own.
Qagggy! @qagggy.bsky.social 📍Seattle/London. Board member at Seattle Streets Alliance. Opinions amirite. Safe, sustainable, equitable, healthy cities. Dongho Chang superfan. (he/him)
Jen Mapes @mapesgeog.bsky.social Community geographer, cartographer, pedestrian, cyclist. Author of "The New American Small Town: Lessons for sustainable urban futures" (West Virginia University Press, June 2025). https://communitygeography.kent.edu/
Mat Lipson @mlip.bsky.social Climate scientist. Focussed on developing better urban climate models.
http://isithotrightnow.com | http://theurbanist.com.au
TREC at PSU @trecpdx.bsky.social Portland State University's Transportation Research and Education Center (TREC). Home to the Initiative for Bicycle and Pedestrian Innovation (IBPI), transportation data programs PORTAL & BikePed Portal, Better Block PSU, and PSU's membership in PacTrans.
Urban Institute @urbaninstitute.bsky.social The Urban Institute is a research-to-impact institution founded on one simple idea: To improve lives and strengthen communities, we need practices and policies that work.
City Observatory @cityobservatory.bsky.social Original research and commentary on what matters for city success. 
Owen Waygood @owenwaygood.bsky.social Sustainable transport prof.; Transport and children’s wellbeing; travel behaviour; psychological framing and transport decisions; oh yeah, car free w/ 3 kids.
Climate Action London @climateldnont.bsky.social Later is too late. Educating, Advocating, Collaborating on Climate Action in London, Ontario, Canada 🇨🇦
Sign up for our local newsletter
www.climateactionlondon.ca/newsletter
CargoB @ridecargob.bsky.social North America's first on-demand electric cargo bike share 🚲📱🌎🏙️
Follow us on IG: @ridecargob
Email us: hello@rideCargoB.com
Learn more: https://rideCargoB.com
https://bit.ly/CargoBgifts
Now available on Apple and Android
Currently serving the Boston area
Alicia, Courtyard Urbanist @urbancourtyard.bsky.social Launching the CIMBY (Courtyard In My Backyard) movement in North America, starting in Chicago.
Dave Thompson 🇨🇦 @davethompsonvic.bsky.social Community, housing, climate, urbanism. Also Victoria BC City Councillor, CRD Director. Civil discourse and good governance. Pragmatic progressive. Please email my City account for City business. My own views only. Seeking re-election in 2026! ☄️⏳#yyj 🇨🇦
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
Sheila Foster @sheilarose.bsky.social Columbia professor. Scholar of environmental and climate justice, cities, and who gets to build the future. Co-founder LabGov. Detroit born, Miami bred.
https://people.climate.columbia.edu/users/profile/sheila-foster
Jonathan Clarke @jrlclarke.bsky.social Associate Professor in Global Sustainable Development. Interested in cities, energy, water and housing. Methods around resilience, representation and co-creation. 
Alex Steffen @alexsteffen.bsky.social Planetary foresight and personal climate strategies.
Courses: https://alexsteffen.thinkific.com/
Podcast/newsletter: https://alexsteffen.substack.com/
Start here → https://alexsteffen.substack.com/p/foresight-is-no-longer-a-luxury
Kevin Essington @kevinessington.bsky.social Usually: cities, nature, climate, New England. Also: Arsenal FC bantz. https://www.citygreenerstrategies.com
Phil Birge-Liberman @ghostofolmsted.bsky.social Urban/historical geographer
UConn Hartford.
Parks for sustainable cities.
Boston sports | Guide dog puppy raiser
Personal account
Russell McIntyre @russellmcintyre.bsky.social US Climate & Housing Policy
Senior Policy Analyst at Cotality
(views are my own)
Carolina sports, star wars, marvel, and memes
WNC / UNC '13 / GWU GSPM '16 / 📍DC
#greensky #climatesky #housing #urbanism
Amy Hemmeter @amyhemmeter.bsky.social Climate Person, Data Scientist, Novice Transit Nerd and Car-free in the Motor City, Vegan
Detroit Greenways Coalition @detroitgreenways.bsky.social #Detroit advocates for a citywide network of #greenways, #CompleteStreets & bike pathways 🚶🏾🏃🏾👩🏾🦽🚴🏾
linktr.ee/detroitgreenways
Blaise Rémillard @blaiseremillard.bsky.social Mobilité et urbanisme au CRE-Montréal | Innovation écosociale | Transition | Concertation | Montréal
Parking Reform Network @parkingreform.org An org with a mission to educate the public about the impact of parking policy on housing, climate, equity, and traffic.
https://linktr.ee/parkingreform
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
Albert S. Fu @novumsimulacrum.com #Sociology prof that plays video games & studies the #BuiltEnvironment. Taiwanese American in PA. Irvine + Binghamton alum. Author of Risky Cities: The Physical and Fiscal Nature of Disaster Capitalism https://tinyurl.com/jkvbxcn4 Views are my own
Geraint Ellis @gellis23.bsky.social Professor of Planning at QUB: Sustainability, planning, energy, health, environmental protection. Editor of Jrl of Env Planning & Policy. Full profile: bit.ly/ZYkPNM
holly caggiano @holcaggiano.bsky.social planning for climate equity (PLACE) lab • asst prof UBC SCARP • VWFC fan ⚽ • not rolling my eyes, I have tourette syndrome
Mitchell Silver @mitchellsilver.bsky.social Urban planner, speaker, placemaker and professor of practice. Former NYC Parks Commissioner, Raleigh Chief Planning Officer and AICP & APA President. Passionate about people, planning, parks & public space.
James Longhurst @jameslonghurst.bsky.social college professor in the U.S. Midwest (all views mine); author of "Bike Battles: A History of Sharing the American Road" / "Las Batallas de la Bici." Shop intern, historian of urban and environmental policy, gravel grinder.
Anne Keary @annekeary.bsky.social Climate activist wearing too many hats - interested in climate justice education & municipal climate strategy. Co-chair Toronto Climate Action Network. For Our Kids Toronto. Environmental Education Ontario. Independent scholar (Ph.D. history, UC Berkeley)
London Cycling Campaign @londoncycling.bsky.social 🚲 Registered charity with 20,000+ members & supporters making cycling in London safe everywhere and fun for everyone.
Dan HIll @cityofsound.bsky.social Designer, urbanist &c. Director, Melbourne School of Design and Professor, University of Melbourne + Visiting Prof of Practice, UCL IIPP. Prev.: Vinnova (Swedish Gov innovation agency), Arup, Future Cities Catapult, SITRA (Finnish Innovation Fund), BBC
Marcel Moran @marcelmoran.com San Francisco 🌁
City Planning, Sustainable Transportation, Spatial Science. Union Member. Assistant Professor. Banner by Bellows.
Andrea Learned | Name & Fame host Ⓥ 🚲 @andrealearned.bsky.social Life is for LIVING! | #ClimateInfluence #NameAndFame #podcast w/ a #cities #bikes #transportation #food focus |I interview, speak + creatively collaborate | https://linktr.ee/AndreaLearned | 💓 #Seattle + #KEXP music
Ian Semple @ianjsemple.bsky.social Transportation & Transit Director for a growing Canadian city. Working to create complete communities with sustainable, multi-modal transportation solutions. Committed to building safe, accessible, and reliable ways to move, connect, and thrive.
Scott Ford @scottford.bsky.social Deputy Director of the Downtown Sacramento Partnership. Champion of sustainable growth models, walkable/rollable communities, and the foundational importance of vibrant downtown neighborhoods as drivers for regional prosperity.
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
Frederik Hoedeman @fredhoedeman.bsky.social Advisor Public and Active Mobility at Copenhagen City
Filip Schmidt @filipschmidt.bsky.social Sociologist and activist, assistant prof. at AMU Poznan, Poland. Studies mobility and transport (social justice, social practices, mob. biographies, soc. and env. benefits&costs of mobility) and family life course. Chairman of Jeżyce Neighbourhood Council.
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.
Kevin Manaugh @kmanaugh.bsky.social Transport Justice - Sustainable Cities
Department of Geography and Bieler School of Environment
@McGillU
Chair of TRB Pedestrian Committee (ACH10)
Cody Hochstenbach @codyhochstenbach.bsky.social Urban geographer (University of Amsterdam) | Housing | Author (Das Mag) | Co-director Amsterdam Centre for Inequality Studies (AMCIS) | Editor International Journal of Housing Policy, Beleid & Maatschappij | All links:
https://linktr.ee/codyhochstenbach
Alex Ip 葉清霖 @alexip718.com Freedom through Truth for Service.
Publisher and Editor at @thexylom.com.
I made the "Generative AI Slop-free News Outlets" starter pack + feed: https://go.bsky.app/8cn1XfT
Signal: alexip.718
Email: alex@thexylom.com
Newsletter: newsletter.thexylom.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
Prof B (Matthew Burke) @weekendatburkys.bsky.social CEO of Bicycle Queensland 🚲 🚲 🚲 Transport and urban planning Prof from Brisbane, Australia. Cycling, walking, micro-mobility, public transport, urbanism, electrification, and more.
Eugenie Waters @eugeniewaters.bsky.social Family Physician | Climate Action | E-Cargo Bike Mom | Ottawa
Leaning in for sustainable healthcare systems, safe active transportation networks, urbanism, biodiversity at the community level, greening schoolyards, and getting off fossil fuels. 
Sara Fuller @sarakfuller.bsky.social Geographer, Macquarie University, Sydney. Researching climate change, energy, activism, cities, communities and justice.
Rhi Faux @rhifaux.bsky.social MSc Environmental & Forest Science. Active transportation, climate, nature, parenting, running, social justice, urbanism. Work for a national health-focused environmental nonprofit. Volunteer with Vision Zero Vancouver.
Diego Ramos Aguilera @d1egoramo5.bsky.social environmental engineering — university of southern california | researching heat in cities | interested in renewable energy, climate change, sustainable development, global south
https://s3research.usc.edu/about-us/diego-ramos-aguilera/
Felix Creutzig @efesce.bsky.social Bennett Chair University of Sussex and PIK Potsdam.
Climate change mitigation, especially cities, transport, and role of AI. Believes in human cooperation, urban planning, economics, and technologies. Make climate policy as if children matter. 
Greg Quetin @grquetin.bsky.social Scientist | Engineer | Cargo Bike Enthusiast. Romantic about the indelible nature of cities full of people living in every way imaginable. Day job - climate change, and the trees of it.
Ingenieur als een Meisje @engineerlikeagirl.bsky.social Chartered Civil Engineer working in the world of active travel 🚴♀️ 🌍 Likes to talk about transport, urbanism, climate change, the environment and nature ❤️ Mum to two boys, a dog and a cargo bike. Laka insurance referral code: AYCD2
Ida Nilstad Pettersen @inpettersen.bsky.social Design research, sustainability, social practices, societal transformation, urban nature. Prof. at NTNU.
https://www.ntnu.edu/employees/ida.nilstad.pettersen
Rebecca Co @rebeccac0.bsky.social Fighting climate change via research, analysis, and accessible communication 🌎📚🔍
- Interests: science, cities, green infrastructure, urban heat, and sustainability
- Voracious reader, cinematic music lover; former environmental microbiologist
Joe Curtatone @joecurtatone.bsky.social President, The Alliance for Climate Transition (ACT). Former Mayor of Somerville, Massachusetts.
Richard Dawson FREng @richdawson.bsky.social Engineer.
School of Engineering @newcastleuni.bsky.social
Researching the resilience and sustainability of water, infrastructure, urban areas in the face of global change.
@thecccuk.bsky.social Adaptation Committee member.
Jesse M. Keenan @jessemkeenan.com Favrot II Associate Professor of Sustainable Real Estate and Urban Planning, Tulane University https://jessemkeenan.com/
North: The Future of Post-Climate America (Oxford University Press)
https://global.oup.com/academic/product/north-9780197641613
Theo Lim @chaolim85.bsky.social Associate Prof, School of Community and Regional Planning, University of British Columbia
Environmental Sci and Planning | Local-Scientific Knowledge Integration | Urban Climate Adaptation
Liz Koslov @koslov.bsky.social Assistant Prof of Urban Planning, Environment and Sustainability, and Sociology at UCLA. Ethnographer of "managed retreat.” PhD in Media, Culture, and Communication from NYU.
Ladd Keith @laddkeith.com Climate planner | Associate Professor & Director, Heat Resilience Initiative, University of Arizona | Helping cities plan for extreme heat 🏜️🏳️🌈 https://laddkeith.com
Sara McTarnaghan @sara-mctarnaghan.bsky.social All things climate change, adaptation, and affordable housing. Social policy researcher and co-lead of the Climate and Communities Program at Urban Institute.
📍DC with past lives in SF Bay Area, Santiago and Austin. 
dr roger cremades @rogercre.bsky.social Climate Change, Complexity Economics, Systemic Risks, Cities, Cascades and Ecology @ University of Leeds.
Complex systems insights for sustainable futures.
Assoc Prof FRSA https://is.gd/1alYNP + https://is.gd/PfiCiI
Towards regional systemic risks.
Andrew Rumbach @andrewrumbach.bsky.social Urban & regional scientist. Co-lead of the Climate & Communities program @urbaninstitute. Research & policy analysis on disasters, disaster recovery, precarious housing, land use, and adaptation. Sourdough enthusiast. https://andrewrumbach.substack.com
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
Zachary Lamb @zacharylamb.bsky.social UC Berkeley, Department of City and Regional Planning.
'The Equitably Resilient City: Solidarities and Struggles in the Face of Climate Crisis' (MIT Press 2024)
https://mitpress.mit.edu/9780262549868/the-equitably-resilient-city
Kian Goh @kiangoh.bsky.social Architect & urban planning professor @UCLA. Usually LA currently Hiroshima. Urban change & climate justice. Author of Form & Flow (MIT 2021) bit.ly/3Q92Mkd
Anuradha Mukherji @anuradhamukherji.bsky.social Social scientist. Working at the intersection of coastal climate adaptation, disaster recovery, land & housing, policy & governance.
Associate Professor|Community & Regional Planning @ ECU|www.anuradha.net
Pirate Name - Pearl
Alum, UC Berkeley & Texas A&M
C40 Cities @c40cities.bsky.social A global network of city mayors delivering urgent climate solutions. Protecting the people and places we love. 🌳🌍🌆💚
http://www.c40.org/
Jon Burke🌍 @jonburkeuk.bsky.social Energy ⚡️ Waste ♻️ Transport 🚲 Public Realm 🌳
Words in HuffPost, Big Issue, Architects Journal.
Climate Emergency UK Advisory Board.
Enquiries - jonburkeuk@protonmail.com
www.jonburkeuk.com
Anna Fahey @trufahey.bsky.social Thinktanking on housing + democracy + clean energy
Opinions—all mine. Or yours, recycled—as also mine. Zero endorsements here.
#Housing #affordability talking points galore
🏘️🎯➡️ https://www.sightline.org/the-pro-homes-messaging-toolkit/
#Parking feed ⬇️