Alex Steffen
We're not yet ready for what's already happened.
Award-winning writer and climate futurist.
Foresight and strategies for life in a planetary crisis.
Podcast and newsletter:
https://alexsteffen.substack.com/
@floriankrampe.bsky.social
Director Climate Change & Risk Programme @SIPRI.org | #ClimateSecurity, conflict, peacebuilding, & security | PhD Uppsala Peace | 🇸🇪🇩🇪 | Geriatric Millennial. FlorianKrampe.org
@climate-risk.bsky.social
SCRI is a think-and-do tank for navigating the next chapter of the climate crisis, producing insights and tools for navigating non-linear and cascading climate risk. Find out more: https://www.scri.org.uk/
@kencaldeira.com
Mostly mentoring a group of postdocs at Stanford. Senior Scientist at Gates Ventures. climate / energy / etc https://sustainablesolutions.stanford.edu/people/ken-caldeira Posts imperfectly represent the views of my former self and not my employer.
@wrirosscities.bsky.social
Helping cities make big ideas happen. A program of @worldresources.bsky.social. Producer of http://TheCityFix.org. Home of #PrizeForCities.
@rodschoonover.bsky.social
Scientist. Professor. Former Senior Intelligence Official. Public Speaker. Passionate about redefining security in the face of planetary change. Proudly Native. Clear-eyed about our trajectory. Focused on radically changing course.
@aimeewitteman.bsky.social
Decarb strategist. Hastening clean electrification and transformed built environments.⚡️Fmr DOE, philanthropy, ag policy. Also into democracy, bikes, and Lake Superior shipwrecks. Personal Account.
@astra.bsky.social
Author of a growing pile of books (Solidarity; The Age of Insecurity; Remake the World; Democracy May Not Exist, but We'll Miss it When It's Gone; The People's Platform), maker of documentaries, schemer with the Debt Collective, editing at Hammer & Hope.
@jurajmikurcik.bsky.social
Passivhaus architect @ Architype. Bio-based materials. UK support for ecococon.eu straw panels. Often taking close-up photos of sheds on bike rides Living in a 100% electric passivhaus with zero energy bills, see the blog: oldholloway.wordpress.com
@geoffdembicki.bsky.social
Investigative climate reporter and global managing editor with @desmog.bsky.social. I wrote THE PETROLEUM PAPERS, named a best book of the year by The Washington Post. https://www.geoffdembicki.com/
@michaelgerrard.bsky.social
Professor of environmental and energy law, Columbia Law School. Founder and faculty director, Sabin Center for Climate Change Law. Practiced environmental law in NYC full-time, 1979-2008.
@bcappelbaum.bsky.social
I write about the economy for the opinion pages of The New York Times. Verification: https://go.bsky.app/8WhdCDa
@yasharali.bsky.social
Elephant Lover Yashar.substack.com Twitter: @yashar IG/Threads @yasharali
@climateofgavin.bsky.social
Climate scientist, juggler. Bikes etc. Blogging at https://www.realclimate.org - data visualization, explainers, and debunking.
@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
@sustainable2050.bsky.social
38 years of experience in the energy transition. Building Common Futures, a new energy transition consultancy. Posts about energy, climate, Ukraine & more. Also on Mastodon. Reposts not an endorsement, views my own. #EnergySky
@jgkoomey.bsky.social
Climate solutions, information technology, critical thinking skills. Born at 318 ppm. https://www.koomey.com
@glenpeters.bsky.social
Energy, emissions, & climate CICERO Center for International Climate Research, Oslo, Norway https://cicero.oslo.no/en/employees/glen-peters
@robbieandrew.bsky.social
Senior scientist at Oslo-based CICERO Center for International Climate Research • 🌍Global Carbon Project • https://robbieandrew.github.io/
@samlmontano.bsky.social
Working on disaster justice & the climate crisis. Emergency Management PhD. Author of 📚DISASTEROLOGY 📚 she/her
@katie-drummond.bsky.social
Global Editorial Director at WIRED. Board member @freedom.press On IG @katie.at.wired
@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 🚲 🚶 🚌 🌆
@davelevitan.bsky.social
Deputy editor, Splinter, covering various horrors. Previous: Grid, bylines all over before that. Author: NOT A SCIENTIST: How politicians mistake, misrepresent, and utterly mangle science (2017, WW Norton). Davelevitan{at}gmail.com Signal: @davelevitan.26
@harkaway.bsky.social
Author, screenwriter. Mutinous mutterer. Husband of much better person. Father of similar. New Cal Sounder novel SLEEPER BEACH is OUT NOW. UK pb Karla’s Choice coming May 22nd. Decreasingly rigorous on social media. (He/him) www.linktr.ee/harkaway
@jolauder.bsky.social
ABC climate reporter, former triple j Hack reporter. Host of Who's Gonna Save Us and Saving the Franklin. Mostly post about books and climate.
@kevinclimate.bsky.social
Professor of Energy & Climate Change at Universities of Manchester & Uppsala. Translating climate science, through carbon budgets, into policy goals & mitigation options. Co-founder https://climateuncensored.com
@rachelcleves.bsky.social
Hungry historian. Novelist. Vancouver Island dweller. I post a lot about old books I'm reading, and sometimes new ones. Also art and nature shots. I avoid posting about politics because what the fuck's the point. You know what I think.
@kzhill.bsky.social
Prof. at Berkeley, research on design for adaptation to flooding, air quality, justice, and biodiversity. So committed to DEI that there's no going back. Looking for common ground and believing in the possibility of shared learning...but not with Nazis.
@davidho.bsky.social
Climate scientist; ocean carbon cycle and climate solutions. Founder, Bamboo Bike Project; Co-founder and Chief Science Officer, @cworthy.bsky.social; Professor, University of Hawaiʻi at Mānoa. https://linktr.ee/david_ho
@dzarrilli.bsky.social
dad, husband, runner, drummer, engineer… Chief Climate & Sustainability Officer @Columbia; former NYC Chief Climate Policy Advisor & Chief Resilience Officer | he/him views mine 🌎 🇺🇸
@weratedogs.com
Your Only Source For Professional Dog Ratings nonprofit: @15outof10.org ❤️🩹 links.weratedogs.com
@katzish.bsky.social
Writer and editor. Ex @PostOpinions @CNN @BostonGlobe @BloomsburyUSA. Sometime poet & translator. Good eater. Parent.
@ultracricket.bsky.social
Earth scientist and activist. She/they. Opinions expressed are my own - Facts expressed are science. climateemergencyfund.org
@mollywood.co
Tech journalist turned climate tech journalist. Telling stories about solutions to the climate crisis on the Everybody in the Pool podcast. Climate tech investor. mollywood.co
@peterbrannen.bsky.social
Mammal 1st book: https://www.harpercollins.com/products/the-ends-of-the-world-peter-brannen?variant=32121859801122 2nd book (Aug, 2025): https://www.harpercollins.com/products/the-story-of-co2-is-the-story-of-everything-peter-brannen?variant=42382167638050
@bmcushing.bsky.social
👋 Director of the @SierraClub.org Sustainable Finance Campaign: sc.org/sustainable-finance 📍 DC resident, Oakland raised 💭 Thinking a lot about climate, finance, politics, & the NBA
@hausfath.bsky.social
"A tireless chronicler and commentator on all things climate" -NYTimes. Climate research lead @stripe, writer @CarbonBrief, scientist @BerkeleyEarth, IPCC/NCA5 author. Substack: https://theclimatebrink.substack.com/ Twitter: @hausfath
@sheril.bsky.social
CFR fellow in the U.S. Senate. Scientist. Author. Host of PBS Serving Up Science. www.sherilkirshenbaum.com
@pkrugman.bsky.social
@aladdintings.bsky.social
Helping climate founders + CEOs build thought leadership libraries and scale big ideas online. Premium ghostwriter, consultant + thinking partner. Greenpeace → academia → law Free resources on LinkedIn: https://www.linkedin.com/in/aladdintingling
@janevandis.bsky.social
OBGYN, Co-Founder OBGYNs for Sustainable Future (www.obg4sf.org), Lecturer on plastics and health. TikTok discussing plastics and health, reproductive rights, born at 323ppm https://www.tiktok.com/@jvandis #MedSky #ObGyn
@worldbollardassoc.bsky.social
The official Bluesky account of the World Bollard Association™️. MERCH STORE - https://worldbollardassociation.team-togs.com/shop/storeorderform.php
@dieworkwear.bsky.social
Menswear writer. Editor at Put This On. Words at The New York Times, The Washington Post, The Financial Times, Esquire, and Mr. Porter. If you have a style question, search: https://dieworkwear.com/ | https://putthison.com/start-here/