@michaelholder.bsky.social @michaelholder.bsky.social Climate & environment journalist - editor @businessgreen.bsky.social
Josh Gabbatiss @joshgabbatiss.bsky.social Associate editor at Carbon Brief 🐸
josh.gabbatiss@carbonbrief.org ✉️
Lauren Rosenthal @laurenthal.bsky.social Weather Reporter for Bloomberg News.
Previously at APM Reports, ProPublica/Electionland, North Country Public Radio, KUCB in Unalaska, AK (pictured above).
Views my own.
Email: lrosenthal21@bloomberg.net
Signal: lgrosen.03
Alex Baumhardt @alexbaumhardt.bsky.social Journalist covering environment and education @oregoncapitalchronicle.com, part of @statesnewsroom.com
David Gregory-Kumar @drdavidgk.bsky.social Dad. Husband. Reporter. I work for the BBC based out of Birmingham. Focused on Environment/Science & Rural Affairs. Cargo bike rider. PhD/DSc. RTS reporter of the year.
www.bbc.co.uk/davidgregorykumar
Bill Weir @billweircnn.bsky.social Covering the fate of life on Earth for CNN
The Wonder List with Bill Weir is now streaming on HBOMax and LIFE AS WE KNOW IT (CAN BE) is available from your favorite bookseller.
cara giaimo @cjgiaimo.bsky.social writer about animals, plants & (sometimes) people / author of Atlas Obscura: Wild Life / guitar in sidebody band / check out my newsletter: https://antsandplanimals.substack.com
Jean Chemnick @chemnick.bsky.social EPA reporter with E&ENews. Tracking the Inflation Reduction Act, climate regulation, and the federal workforce. Always looking for tips. | Washington, DC | eenews.net
Reach me on Signal at jchemnick.01
Ana Georgescu @theanageorgescu.bsky.social science writer @C&EN ⚗️ https://cen.acs.org/staffDirectory/Ana-Georgescu.html
Jim McClelland @sustmeme.com Sustainable Futurist: Editor, Journalist, Host/Speaker: Climate, Energy, Built Environment, Circular Economy, Biz, Finance, Biodiversity, Conservation, Food & Ag, Transport. #Sustainability Magazine: https://sustmeme.com Newsletter: https://buff.ly/3WiTOEW
Tim Fernholz @timfernholz.com journalist, author, internet participant
writing and reporting on space, AI, and public policy
I always want to hear your tips and ideas on signal: tim_fernholz.21
timfernholz.substack.com | www.timfernholz.com
Oakland, CA
Michael Hawthorne @scribeguy.bsky.social Midwesterner. Pulitzer finalist. Dig into environment/public health for the Chicago Tribune. Confidential tips welcome via SIGNAL: scribeguy.35
EPL/NBA/MLB obsessive. Victoria Concordia Crescit. https://www.chicagotribune.com/author/michael-hawthorne
Josh Lappen @jlappen1.bsky.social energy historian | infrastructure, decarbonization, and landscapes | Angeleno | always on the lookout for a good fun fact
coming soon to a disciplinary boundary near you!
Brendon Slotterback @bslotterback.bsky.social Decarbonization. Likes charts. Helping philanthropy and government advance clean energy. PGH🌲 🚲
Rachel Slaybaugh @rachelslaybaugh.bsky.social 
Kevin J. Kircher @kevinjkircher.com Engineering prof (mechanical + electrical) at a big Midwest state school. Energy, climate, buildings, power grid, control, optimization, data science. He/him. Personal account. https://kevinjkircher.com/ Email: my last name at purdue dot edu
Aaron Pressman @ampressman.bsky.social Boston Globe tech reporter, lifelong Celtics fan, suburban dad complete with convertible and golden retriever. Current areas of interest include EVs, AI, climate tech, gadgets, cycling, and sci-fi. On Signal ampressman.76
John Voelcker @johnvoelcker.bsky.social Raconteur. Random cultural, political, sociological, science, tech, #EV, #LGBTQ, British car stuff. "Plucky and good fun."Contributing Editor, CAR and DRIVER, Green Car Reports, others; Cofounder, Tempting Fate Tours.
Welcome to Bluesky. Don’t be a jerk.
Tom Risen @tomrisen.bsky.social Journalist and NYT bestselling co-author of "The Last Honest Man" on #CIA #FBI #NSA investigations by the #ChurchCommittee during #ColdWar. Posts = just me. https://www.goodreads.com/book/show/62315624-the-last-honest-man
Graham Starr @gstarr.bsky.social same graham but over here now. Editor and reporter covering business tech, health care, and media, mostly.
DocumentedNY: TechCrunch, Adweek, Bloomberg, Business Insider, NYT, NYMag, &c. Here to share things I read!
🔗 https://graham.substack.com/
@johnbogil.bsky.social @johnbogil.bsky.social Removing carbon
Katherine Garcia @katherinejulia.bsky.social Clean transportation campaign director at Sierra Club. Advocate for electric bikes, cars, buses, trucks & trains. Mamá in Washington, DC. Drive less! 
Ashley Belanger @ashleybelanger.bsky.social Cursed to love reading legal docs.
Senior policy reporter for Ars Technica
ashleybelanger.com
Signal: @ashleybelanger.77
Ben Young Landis @younglandis.bsky.social Human. Taiwanese. Writer/Creator. Designing lasting impact for science, environment, and society.
🧠 @cr8xt.bsky.social
🐟 @betterknowafish.bsky.social
🧋 @yangjundah.bsky.social
📍 TAIWAN 台灣
Clare Fieseler, PhD @fieseler.bsky.social Journalist covering the ocean and climate change / currently: columnist @sciencepolitics.bsky.social / former: POLITICO, The Washington Post, The Post & Courier / National Geographic Explorer / signal @clare.14
Tony Dutzik @frontiertony.bsky.social Assoc. Director/Sr. Policy Analyst, Frontier Group, part of The Public Interest Network. Transportation, climate and energy policy, mostly. 
Kaitlin McCready @kaitmccready.bsky.social Tech. Energy. Transportation. Public trust. Formerly at U.S. Joint Office of Energy and Transportation, MTA, Edelman, Oracle. Founder of Communio Strategies and author of Trust Issues https://readtrustissues.substack.com
Magda Maaoui, PhD @magdamaaoui.bsky.social housing + environmental health.
Asst. Professor of urban planning @gsd.harvard.edu
Co-lead healthy places design lab
Formerly OECD, Paris planning, Ad’A
www.magdamaaoui.com
currently working on hospitals x housing, any lead/personal story welcome
Conrad Hackett @conradhackett.bsky.social Demography nerd at Pew Research Center
Global religious change, sociology
Cyrus Farivar @cfarivar.bsky.social "suh-ROOS" / سیروس
🕵️ 20+ year tech journalist, editor, author, comms
🔥 🏡 Ex: Fire Aside
📰 🎧 Ex: Forbes, NBC, Ars Technica
🖖 Friend of DeSoto
😎 Nice dude
🐻 4th-gen Californian // Oakland, CA
📥 cyrus@farivar.media
📱 +1-341-758-0888 (mobile/Signal)
Alexandra Heal @alexandraheal.bsky.social Private capital reporter at the Financial Times
Contact me at alexandra.heal@ft.com
Previously FT visual storytelling | Previously previously environment and social affairs at The Bureau of Investigative Journalism
Courtney Humphries @strangestsea.com Writer, environmental researcher, educator, author. PhD in environmental science from UMass Boston. Former Knight Science Journalism Fellow at MIT. My Substack is The Nature We Make, https://substack.tnwm.net/. My website is https://www.strangestsea.com/
Andreas Sieber @andreassieber.bsky.social Energy & Climate Geopolitics
Head of Political Strategy @350.org
Energy Co-Lead, International Climate Policy Hub.
Views = my own
David Roberts @volts.wtf I run a newsletter/podcast called Volts about clean energy & politics. Subscribe & join the community at http://volts.wtf!
MIT Comparative Media Studies/Writing @mit-cmsw.bsky.social CMS/W’s studio and workshop curriculum combines approaches from the humanities, arts, social sciences, and science communication to teach its graduates how to work and interact with contemporary media.
Matthew Stotts @mlstotts.bsky.social Investing in Earth-scale technologies for climate impact, sustainability and regeneration.
Dr Chris Macdonald @drchrismacdonald.bsky.social 👨🔬 Scientist | Founder | Author
🏥 Health Tech🍴Better Protein
🏆 40 Under 40 in Science
🥇 Innovation of the Year
📍 University of Cambridge
🎯 On a mission to provide 1M free treatments in 2026
🔗 DrChrisMacdonald.com
John Kostyack @kostyack.bsky.social Consulting on climate change & the energy transition for NGOs & foundations at Kostyack Strategies. Senior Contributor at Forbes.com & Senior Fellow at ceea.us. All opinions expressed here are solely my own.
Boston Tom Levenson @tomlevenson.bsky.social Science writer. New book: A Pox on Fools arrives in May 2026. Preorders https://www.penguinrandomhouse.com/books/808113/a-pox-on-fools-by-thomas-levenson/ Professing science writing at MIT. Spouse & dad. Servant to 2 feline overlords...All opinions mine.
Jay Turner @jayturner.bsky.social Environmental Studies Professor at Wellesley College. Author of Charged: A History of Batteries and Lessons for a Clean Energy Future (2022). Tracking and analyzing clean energy supply chains at https://www.the-big-green-machine.com 
Andrew D Thaler @drandrewthaler.bsky.social Deep-sea ecologist investigating how humans shape and reshape the sea floor. Conservation technologist developing open-source tools to understand our changing oceans. Ocean educator creating novel programs to help students interact with marine ecosystems. 
Stephen Shankland @stshank.bsky.social Head of Content at Commonwealth Fusion Systems, a company commercializing fusion energy: clean, safe, affordable, secure. Former science and technology journalist. Bird nerd. Assigned to the Conehead clique as a teenager.
Jennifer Frazier, Ph.D. @frazierarchives.bsky.social Engaging people with science to foster curiosity and empower decision making
Program Officer, Gordon and Betty Moore Foundation
Adjunct Professor of Biochemistry, UCSF
Posts are my own
Andrea Thompson @andreatweather.bsky.social Senior Desk Editor for Life Sciences at Scientific American, covering earth and the environment. (she/her) Posts are entirely my own and not reflective of my employer. Email: andrea.thompson@sciam.com Signal: @AndreaT.95
Robin Kazmier @rokazmier.bsky.social Managing Editor at Science Friday. Journalist, fact-checker, birder. Author of “National Parks of Costa Rica.” she/her
Danielle Venton @dventon.bsky.social Science reporter @kqednews // wildfire, space & oceans // studied @UCSC_SciCom @humboldtcalpoly // Host of the KQED Climate Book Club -- come read with us! Reach me on Signal: DVenton.09
Julia Levin @jflevin.bsky.social Posting about climate justice and energy policy. Associate Director, National Climate @ Environmental Defence Canada. Views my own. She/her. Settler on stolen land.
📍Unceded territory of the Algonquin Anishinaabeg People / Ottawa
Sophie Hartley @hartleys.bsky.social Covering the environment & natural resources for The Indianapolis Star 🌳 Tree identification enthusiast
Get in touch: sophie.hartley@indystar.com | Signal: hartleys.55
Hannah Richter @hannah-richter.bsky.social Freelance science journalist covering Earth, space, and science policy🌎🪐
Writing for Science's ScienceAdviser newsletter📧
M.S. MIT Science Writing '24✏️
Read me: https://www.hannah-richter.com/ | Contact me: hannahroserichter@gmail.com
Kendall Powell @kendallsciwrite.bsky.social Senior editor @Nature.com's Careers team. Word nerd and chronicler of the geekosphere. Flip-turner at 5am. Opinions are just mine. she/her
Dave Vetter @davidrvetter.bsky.social Climate and sustainability writing and communications; duck monitor.
Heather Mongilio @heathermongilio.bsky.social Reporter with USNI News, covering the Navy, Marine Corps, Coast Guard. Focused on personnel, medicine and seas with colors in their names. American U, MIT alumna. Ice skater who bakes. Tips: hmongilio@usni.org, Signal: @HMongilio.52
Rod McCullom @rodmccullom.bsky.social Science and technology writer | Foodie | Globetrotter | AI and neuro blerd
Senior contributor Undark @undark.org |
Bylines: Scientific American | MIT Technology Review | Harvard Public Health | The Atlantic
Alum: MIT KSJ | MIT | University of Chicago
Jim Handman.bsky.social @sciencejim.bsky.social Executive Director, Science Media Centre of Canada.
Former Exec Producer, CBC Quirks & Quarks, Ryerson University (now TMU) journalism instructor. Award-winning science journalist and SciComm trainer. http://sciencemediacentre.ca/
Jon Fahey @jonathanfahey.bsky.social Associated Press Health & Science Editor
Ashley Smart @ashleythesmart.bsky.social 
Wojtek Brzezinski @wojtekbrzezinski.pl Polish science journo, 2023 Knight Science Journalism @ MIT Fellow. Writes about climate, AI, social media and space. Will talk your head off about scuba diving.
www.wojtekbrzezinski.pl
www.tygodnikpowszechny.pl
Jane Qiu, PhD @janeqiu.bsky.social Globe-trotting, award-winning independent science writer in China | Words in @nature.com, @sciam.bsky.social, National Geographic and more | Writing a book on emerging diseases for @scribnerbooks.bsky.social | Ex: @ksjatmit.bsky.social, @nature.com
Sarah Gilman @sarahmgilman.bsky.social Writer & illustrator @ The Atlantic, Sierra, Audubon, etc. Edits @ High Country News. Subscribe to Terra Affirma for comics and visual essays @ https://sarahmgilman.substack.com Art @ http://etsy.me/3llAmpO and www.instagram.com/hiddendrawerdesigns/
Lynne Peeples @lynnepeeps.bsky.social Seattle-based science journalist, keynote speaker, and author of THE INNER CLOCK (Sept 2024, Riverhead Books). Former biostatistician. www.lynnepeeples.com
Mary-Rose Abraham 🌹 @maryroseabraham.bsky.social Multimedia Journalist / bylines: BBC News, Civil Eats, Deutsche Welle, Guardian, NatGeo, NPR, Undark
past: Knight Science Journalism at MIT, ABC News producer
alum: Columbia University Journalism, UCLA, Harvard-Westlake School
VivienM @vivienm.bsky.social Journalist. Nature journals and blog, pieces also in New Scientist, The Economist, Science, Lancet. Science, tech; arts and culture on occasion. Ex-MIT KSJ fellow; sr producer at arte. Articles, podcasts, videos. https://www.vivienmarx.com Signal: vam.60
Laura Bliss @mslaurabliss.bsky.social Editor and writer at Bloomberg Businessweek. Pulitzer finalist 2024. Cities, science, climate and maps. lbliss2@bloomberg.net
Daniel Rothberg @danielrothberg.bsky.social PhD student @ UC Berkeley | Writer and researcher focused on groundwater policy and how communities relate to water | Working on a book about water in the Great Basin (Island Press) | invisiblewaters.substack.com 🏔🏜
Kai Kupferschmidt @kakape.bsky.social science journalist. author. molecular biologist. curious.
interested in #microbes, #misinformation and all things #blue
contributing correspondent at @science.org
co-host of @pandemia.bsky.social
2024 KSJ fellow at MIT
Signal: kakape.93
Barbara Moran @moranwriter.bsky.social Science journalist, swimmer, mom of two boys. I work at WBUR in Boston but all posts are my own (especially the funny ones).
Pakinam Amer @pakinamamer.bsky.social Emmy-winning journalist. Aspiring screenwriter & filmmaker. Immersive storyteller @ MIT Virtuality. Former KSJ fellow. Board @ Imagine Science Films. Words & podcasts: SciAm, Nature, Science, The Boston Globe & others.
Jason GRIZZLED Bittel @bittelmethis.bsky.social Wild animal, science writer, & author of GRIZZLED: Love Letters to 50 of North America's Least Understood Animals (National Geographic Books). He/him. https://www.penguinrandomhouse.com/books/804002/grizzled-by-jason-bittel/
Alister Doyle @alisterdoyle.bsky.social Freelance environmental reporter, author of “The Great Melt”, formerly Reuters environment correspondent, MIT Knight Science Journalism Fellow
Lisa De Bode @lisadebode.bsky.social journalist
Richard Fisher @richardfisher.bsky.social Senior Editor, Aeon | Author of non-fiction book The Long View | Honorary professor in science communication, UCL | Formerly: BBC Future, MIT Knight Science Journalism fellow, New Scientist | https://richardfisher.carrd.co
Andrada Fiscutean @andradaf.bsky.social Freelance Science & Tech journalist.
Bylines: BBC World Service, CSO Online, Ars Technica, Motherboard & more. KSJ at MIT Fellow 2020
#cybersecurity #science #retrotech
Caty Enders @catyenders.bsky.social Journoscientist interested in the effects of social media, AI, and our digital infrastructure on the brain and behavior 🧠 Words in @nytimes @theguardian @outside @NPR and elsewhere.
Dan Charles @dancharles.bsky.social Telling stories about climate, food, land. Former NPR. Urbanist and ruralist and bicyclist. Science Magazine contributor.
Karen Brown @karenstella.bsky.social Journalist (health, mental health, and stories of the human condition). On staff at New England Public Radio in western Mass, plus freelance for NYT, NPR, etc. Have a couple of grown-ass kids (their term) and most quoted movie is This is Spinal Tap.
Anil Ananthaswamy @anilananth.bsky.social Journalist with bylines in Nature, Quanta, Scientific American, New Scientist, and many more; former deputy news editor at New Scientist Author of 4 popular science books, including WHY MACHINES LEARN: The Elegant Math Behind Modern AI; TED speaker
Jason Dearen @jasondearen.com Investigative Journalist | criminal justice, extremism, environment, public health.
Watch Emmy-winning doc: "Grand Knighthawk” on Hulu.
Read my book: "Kill Shot: A Shadow Industry, A Deadly Disease"
http://www.jasondearen.com
Mark Zastrow @markzastrow.com Science journalist and KAD. Currently Editor at Astronomy magazine.
Kelsey Houston-Edwards @kelseyahe.bsky.social math + writing + videos
www.youtube.com/@chalktalkmath
www.kelseyhoustonedwards.com
Matthew Moynihan @patternavoider.bsky.social Massachusetts Mathematician from Minnesota
Katharine Gammon @kategammon.bsky.social Science, health, tech, environment journalist writing for The Guardian, The Atlantic, Nautilus, Forbes and others. Living by the beach.
Katharinegammon.com
Kate Travis @katetravis.bsky.social Managing editor of Retraction Watch - https://retractionwatch.com/. NASW Science in Society Awards coordinator. Science journalist, project manager, Order Muppet (mostly). kate[at]retractionwatch.com, katetravis.05 on Signal.
Danny Crichton @dannycrichton.com Write and design Riskgaming scenarios on tech, science and politics. Partner, Research at Lux Capital.
Kate Cox @kcoxdc.bsky.social Now: Making Decoder @ The Verge. Earlier: editor for Protocol; reporter for Ars Technica, CQ Roll Call, Consumerist, and Kotaku; decades of other writing strewn across the internet. Boston-born, now DC-dwelling. She/her.
David Dobbs @daviddobbs.bsky.social Writer for almost all the best places. Which, like so much else, is not as fun as it used to be.
“Expect the worse. It saves time.”
daviddobbs.co for selected work.
https://authory.com/DavidDobbs for all the work the algorithm could find
Sarah Scoles @sarahscoles.bsky.social Journalist, universe liker, mountain scaler, Custer County Search and Rescue member, contributor to Undark and Scientific American, author of Countdown: The Blinding Future of Nuclear Weapons. Etc.
Aleszu @aleszu.bsky.social Data Scientist, Advance Local • Fmr director of dataviz, Urban Institute • Alum USA TODAY Investigations, Undark magazine, Esquire, Science Friday • Knight Fellow at MIT ‘14 • Taught @ Northeastern • Built Storybench.org • Peruano-gringo • Cleveland OH
Deborah Blum @deborahb.bsky.social Book author, toxicology journalist, fascinated by poison and murder (current book project), and, oh yeah, I'm the former director of the Knight Science Journalism program at MIT.
Chelsea Harvey @chelseaeharvey.bsky.social Climate & extreme weather reporter | POLITICO | PEN Guild | Former (and forever) E&E News | NYC via NC SC AL WV
TIPS: charvey@politico.com | chelseaeharvey@protonmail.com |
Signal @chelseaeharvey.01
@suncoffey.bsky.social @suncoffey.bsky.social 
Evan DeSimone @mediaevan.bsky.social Media Writer/Complainer
Previously: Digiday, IntegralAds, Tubefilter, DCNorg
Currently: https://mediahappyhour.substack.com/
Jori Lewis @jorilewis.bsky.social Author of Slaves for Peanuts. Editor @adi_magazine
.
Federico Kukso @fedkukso.bsky.social Science writer • 2016 @KSJatMIT/ @Harvard fellow • 📖 #FRUTOLOGIAS: Historia política y cultural de las frutas • #ODORAMA Historia cultural del olor (Odorama: Cultural History of Smell) • IG: @fedkukso • linktr.ee/fedkukso • 🇦🇷🏳️🌈
Charles Rollet @charlesrollet.bsky.social Tech reporter at Business Insider. Previously at TechCrunch. Bylines in WSJ, Wired, Vice, Foreign Policy.
Signal: charlesrollet.12
Michael F. Fitzgerald @mffitzgerald.bsky.social Editor-in-chief @cambridgeday.com
Former #HarvardPublicHealth magazine @bostonglobe.com
@niemanstoryboard.org @UChicagoalumni.bsky.social @niemanfdn.bsky.social
Posts express my views only.
Julia Rosen @1juliarosen.bsky.social Journalist. Working on a book about grass.
Madeline Ostrander @madelinevo.bsky.social Climate journalist, author, AT HOME ON AN UNRULY PLANET
http://madelineostrander.com
KSJ at MIT Fellow 2023-2024
Mastodon: @madelineostrander@journa.host,
@madelinevo on Insta
Eric Engleman @eengleman.bsky.social Technology editor and reporter, with stops at Politico, Bloomberg.
Ed Crooks @edcrooks.bsky.social Covering everything in energy and natural resources for Wood Mackenzie. Host of The Energy Gang podcast
Timothy B. Lee @binarybits.bsky.social Reporting on AI and the future of the economy. Computer science masters degree from Princeton.
Subscribe to my AI newsletter: http://www.understandingai.org