Jon Cooper @joncooper-us.bsky.social Democratic strategist. Formerly Long Island Campaign Chair for Barack Obama; Majority Leader of the Suffolk County Legislature. Gay dad of five terrific kids. Writer and producer of echoesoftheunknownpodcast.com. Coffee addict. New York/Florida. 🌴
MikeM3 @mikeg80.bsky.social Politics, long time trump/gop/maga hater. Retired married liberal dem in SE FL. Fitness Fanatic; running, weights, resistance bands & kickboxing. Dark chocolate connoisseur & beach lover. Occasion cooking and baking aficionado. 🚫DMs.
Julius Csotonyi @juliuscsotonyi.bsky.social Paleoartist, natural history artist (no AI!), microbiologist, ecologist, educator, and nature lover with a mighty passion for protecting life on Earth -- and an inextinguishable hope and motivation to make a better world.
Chris Vaughn @int3g.bsky.social Scrum Master/Agile Coach. Audio Producer. Mix/Mastering Engineer. Instrumentalist. Tech Nerd. Gamer.
@romycarver.bsky.social @romycarver.bsky.social 
ElieNYC @elienyc.bsky.social Justice Correspondent for The Nation Magazine. Author of Allow Me to Retort and Bad Law.
Class: PLD. Alignment: Neutral Good
Str:12 Dex:8 Con:15 Int:13 Wis:10 Char:14 Author: Allow Me To Retort
Ulyana Pena @mtnuly86.bsky.social Scientist, science communicator, educator, mountaineer. Passionate about the planet, in particular the mountains and polar regions!
Alt CDC (they/them) @altcdc.altgov.info Public health experts resisting harmful policies, fighting disinformation, and defending public health from within.
Not official CDC—but close enough for transmission.
Proudly #AltGov
Tips? signal altCDC.99, email altCDCtips@proton.me or DM
NOAA Climate.gov @climate.noaa.gov Toward a Climate-Smart Nation. The official NOAA account for Climate.gov hosted by the Climate Program Office. Follow for #climate news, #science, #data, resources, and more!
NOAA @noaa.gov NOAA provides science, service and stewardship to protect life, property & Earth's natural resources. An agency of the Department of Commerce. Join us on Instagram & Facebook. Official NOAA account.
Rogue NASA @roguenasa.altgov.info Not an official NASA account. Come for the facts, stay for the snark.🥄
Same team from Twitter but with more gray hairs. 🚀🛰️🧪🔭
climate.nasa.gov
they/them
🏳️🌈🫶🏳️⚧️
Alt National Park Service @altnps.bsky.social The official "Resistance" team of U.S. National Park Service. Our website: www.ourparks.org
Adam Markham @adammarkham.bsky.social Climate, biodiversity, heritage & archaeology.
Co-chair Climate Change Specialist Group of IUCN World Commission on Protected Areas. UHI PhD student researching Viking/Norse birds. Trustee ICOMOS-USA. #HeritageAdapts #archaeobirds #zooarchaeology
Marc Alessi @marc-alessi.bsky.social PhD Climate Scientist, Union of Concerned Scientists | Colorado State/Cornell alum | Syracuse, NY | opinions my own #JoinYourUnion
Kathy Mulvey @kathymulvey.bsky.social Corporate accountability campaigner @ucsusa.bsky.social, exposing and challenging fossil fuel industry climate deception and working to make polluters pay.
Seth D. Michaels @sethdmichaels.bsky.social Bert of the Intellect, Ernie of the Will
DC based, comms at @ucs.org (all opinions mine), @emtrap.bsky.social enthusiast, ambivalently Online, generally polite, still People Magazine's Seth D-est Man Alive. please don't argue in my notifications
UCS Climate & Accountability Campaigns @ucsclimate.bsky.social Climate & Accountability Campaigns at the Union of Concerned Scientists @ucs.org. Your place for rigorous, independent, intersectional climate science. #EnvironmentalJustice always.
Dave Cooke @ucsdave.bsky.social Using my white male privilege to rabble rouse companies and govt agencies into doing more. Midwest-grown, California-schooled, Senator-less citizen of the Douglass Commonwealth.
This is a personal acct, but I'll still be mad about transportation issues.
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
@climategeek.bsky.social @climategeek.bsky.social 
maegan ramirez @maeganramirez.bsky.social storyteller. not always there when you call, but always on time. my posts, my views.
linktr.ee/maeganramirez- L @lisanurnberger.bsky.social @lisanurnberger.bsky.social media director Union of Concerned Scientists, track science in policymaking, climate/clean energy, nuclear weapons, news junky but moreso outdoors and music junky
Karen Perry Stillerman @karenstillerman.bsky.social Eater, porch gardener, soil enthusiast, blogger, policy wonk, building a better food system @ucs.org.
Dog mom. #DubNation. She/her. Views my own.
Paula García @paulagarcial.bsky.social #CleanEnergy #Justice research and policy @ucsusa.bsky.social Ocean lover + Plant explorer. Opiniones enteramente mías ✨
Dr. Pablo @pablowater.bsky.social Director of Innovation and Collaboration at the Union of Concerned Scientists (UCS)
I'm also an Environmental Engineer and Hydrologist
Amanda Fencl (she/they) @alfencl.bsky.social 
Laura Grego @lauraegrego.bsky.social Senior scientist & research director, Global Security Program, ucsusa.org. Space, missile defense, nuclear weapons. 
Dr. Tara Drozdenko @tdrozdenko.bsky.social Director, Global Security Program @Union of Concerned Scientists. Working to reduce the risk of nuclear war, address the injustice and harm done by nuclear weapons, and move us closer to a world free from nuclear weapons. Oxford Comma enthusiast.
Gregory Kulacki @gkucs.bsky.social Director, East Asia, Global Security Program, Union of Concerned Scientists. Non-Resident Fellow, Research Center for the Abolition of Nuclear Weapons at Nagasaki University. Cross-cultural sojourner.
Dave Reichmuth @davereichmuth.bsky.social Transportation policy, electric cars, science, Oakland, baseball & softball; not necessarily in order of importance. 
Dylan Spaulding @dkspaulding.bsky.social Senior Scientist, Union of Concerned Scientists, Global Security Program. Views are my own.
Blog: blog.ucsusa.org/author/dylan-spaulding/
Stephen Young @atomicwonk.bsky.social Advocate for more sensible nuclear weapons policies, firm believer that we should not live in a world where hundreds of millions could be dead in an hour. Associate Director for Government Affairs, Global Security Program, Union of Concerned Scientists
Kevin Xu Shen 沈志文 @kevshen.bsky.social transportation, policy, planning, and onwards. 🚌 fighting for clean air and a just world. now at
@UCSUSA, recently at @MIT. he/him. views my own.
Kyle Ann Sebastian @kyleanns.bsky.social 📍 Chicago | Comms for @ucsusa.bsky.social | Opinions are mine, I think.
Madison Rose @madisonucs.bsky.social Former Campaign Organizer with the Global Security Program at
Union of Concerned Scientists, working to abolish #nuclearweapons. she/her
Jess Phoenix 🌋 @volcanojess.com That volcanologist you saw on TV. Executive Chair of The Comedy Resistance. Ran for Congress, wrote MS. ADVENTURE, did the world's longest horse race. Podcasts, mohawks, punk rock, WFR, super into protecting democracy.
Edwin Lyman @nucsafetyucs.bsky.social Director of Nuclear Power Safety, Union of Concerned Scientists, Washington, DC.
Julia Kent @juliakentdc.bsky.social Chief Development Officer, Union of Concerned Scientists
(@ucsusa.bsky.social)
Stacy Woods, PhD (she/her) @geostatstacy.bsky.social I do stats, make maps, and lead a research team studying water, agriculture, equity, and environmental health @ Union of Concerned Scientists. Swamps are underrated. (profile pic c/o @lucyknisley.bsky.social)
Robert Rust @rrucs.bsky.social China Analyst, Union of Concerned Scientists Global Security Program.
US-China relations, especially on nukes, arms control and the like. Views my own, likes/RTs ≠ endorsements. I'm not here representing Hardbodies.- M @mvertrees.bsky.social @mvertrees.bsky.social
Peter Frumhoff @frumhoff.bsky.social Climate science + policy @ Woodwell Climate Research Center, Harvard. Recovering academic, seeking sustainability. Views my own. 
Sanjali De Silva @sanjalidesilva.bsky.social intl climate comms | Previously: UCS, Precision Strategies, ACLU, PPFA | she/they ✊🏾🌿 based in Berlin | views are my own
Gretchen Goldman, PhD @gretchentg.bsky.social President @ucs.org. Previously: USDOT, White House OSTP, @500womensci.bsky.social. Environmental engineer. Mom. Cyclist. Public Transit Enthusiast. Views my own. She/her.
Aaron Huertas @aaronhuertas.bsky.social Carpenter and woodworker. Democracy and unions liker. Building and fixing things: capehenlopencarpentry.com. Writing and editing: aaronhuertas.com.
@sethshulman.bsky.social @sethshulman.bsky.social 
Dr. Shaina Sadai @scienceshaina.bsky.social Climate scientist and critical physical geographer. Works on climate and sea level projections, corporate accountability, climate litigation, and climate justice.
Queer, disabled, vegan🌱🌈 She/her
Views expressed here are mine
Kathy Rest @kathyrest.bsky.social Public health, science, worker health and safety, environmental health. Co-editor, SciLight. Former Executive Director, Union of Concerned Scientists. 
Katy Love @ktlove.bsky.social Perpetually vacillating between despondency over the state of things and drive to fix it. (she/her)
Elliott Negin @ejnegin.bsky.social Executive editor of Money Trail on Substack. Former American Journalism Review managing editor, Nuclear Times and Public Citizen magazine editor, NPR editor, and HuffPost contributor. Columbia J School alum.
Nickolas Roth @nickolasroth.bsky.social Nuclear weapons, nuclear security, BBQ, Senior Director
@NTI_WMD, Research Fellow @CISSMaryland. Previously @ManagingtheAtom, @StimsonCenter @UCSUSA etc.
.
Ashanti Washington ⚡️ @byashanti.bsky.social Communicator • Strategist • Consultant
Energy, power, people & policy
Tennessean. Grid geek. Fourth estate fan!
Priors: FERC, CELI, UCS, ORNL
Ricardo J. Salvador @cadwego.bsky.social Free-living, aerobic, cursorial heterotroph.
Running fixes everything: your diet, health, and attitude.
Marathons, books, music, coffee, computers, justice.
“O Tierra del Sol, suspiro por verte.”
Charise Johnson @charise.bsky.social 
Tosin Fadeyi @tosinfadeyi.bsky.social justice, science, people, and levity
I organize scientists, engineers, social scientists, and other technical experts at @ucs.org
#sciencepolicy #scienceadvocacy #scipol #scienceengagement
Edyta Sitko @esitko.bsky.social Polish and American. Chocolate lover. Traveler. Energy Campaign @ucsusa.bsky.social She/her.
Brad Johnson @climatebrad.hillheat.com Climate hawk. DC-based journalist. Registered Parliamentarian. FSP. Subscribe to my newsletter: https://Hillheat.news/subscribe
Ryan Stauffer @ryanswx.bsky.social NASA/GSFC scientist running a global ozone network who was also wrongfully stripped of my 2025 JD Power Virtual Storm Chaser Championship
Alex Lamers @alexlamers.bsky.social I try to make sense of the weather for a living. Remember, low probability events can and do happen.
Ian @ianlivingston.bsky.social Writer. Reporter. Listener. Forecaster. Editor. Former Brookings foreign policy and WaPo weather/climate. #wx #dc #dogs #climatechange #policy #military #python #gis
capitalweather.com
Andra Garner @andrajgarner.bsky.social Associate Professor of Environmental Science at Rowan University | Coastal Hazards researcher, including tropical cyclones and sea-level rise in a warming climate | Climate communicator | she/her | Opinions my own
Andrew Dessler @andrewdessler.com Prof of Atmospheric Sciences & climate scientist @ Texas A&M; AGU and AAAS Fellow; Native Texan; find out what I think at https://www.theclimatebrink.com/
Steve Bowen @stevebowen.bsky.social Work: Chief Science Officer @GallagherRe
Alumnus: Notre Dame (MSc: Business Analytics). Florida State (BS: Meteorology).
Healthy Obsessions: Weather & Climate Nerdery. Metallica. Notre Dame. Chicago Sports (Blackhawks, Cubs, Bears, Bulls).
Views: Mine
Daniel Brown @danielarthurbrown.com Climatologist by training. Working for the Huron River Watershed Council. Currently focused on climate resilience and addressing PFAS. Nature photographer on the side. Hike, pedal, and paddle whenever I can.
James Franklin @franklinjamesl.bsky.social Former Chief, Hurricane Specialist Unit, National Hurricane Center, NOAA/NWS (retired). Mostly weather posts, with occasional forays into grammar and usage, word play, and south Florida sports.
Kim Wood @drkimwood.bsky.social Associate professor at UArizona. Hurricane mortician. Science communicator. Open science + Python + 🐈 enthusiast. This is my only bsky account. Opinions mine.
Dave Levitan @davelevitan.bsky.social Science journalist, bylines all over the place.
Book: NOT A SCIENTIST: How politicians mistake, misrepresent, and utterly mangle science (WW Norton).
www.davelevitan.com
Sign up: www.gravityisgone.com
Laura Routh @laurarouth.bsky.social On break from writing about climate change at https://www.thestatesclimateproject.com/ and elsewhere, too. Born 316.91 ppm. Caregiver to a loved one. Following posts on climate, economics, and mental health.
Dr. Samantha Montano @samlmontano.bsky.social Working on disaster justice & the climate crisis. Emergency Management PhD. Author of 📚DISASTEROLOGY 📚 she/her
Ketan Joshi @ketanjoshi.co Hey, I'm a climate and energy writer / data analyst who focuses on corporate + govt accountability
Creator + curator of the Greensky feed: https://ketanjoshi.co/greensky/
Based in Oslo but write about US, Europe, Aus too - ketan.joshi85@gmail.com
Kate Mackenzie @katemac.bsky.social finance, energy, climate, geopolitics, industrial policy
@thepolycrisis.bsky.social
in Australia -> DMs hard to retrieve, best to email
WeatherMatrix @weathermatrix.bsky.social Meteorologist, writer, producer at AccuWeather. PA/USA
WeatherMatrix - Since 1996 - "The Weather is Always Interesting."Also @WeatherMatrix on TW/FB/IG/YT/MD
Experimental weather maps at WeatherWatchers.Org
The Eyewall @theeyewallwx.bsky.social Reliable, no-hype coverage of tropical storms and hurricanes across the Atlantic from the team at Space City Weather! https://theeyewall.com/
Chase Cain @chasecain.bsky.social 🌦️ Meteorologist
🌎 former NBC Climate Reporter
📍 San Francisco
https://youtube.com/@chasecain
Dr. Josh Bregy @prehistormic.bsky.social Climate scientist & paleoclimatologist. Paleohurricanes, paleoclimatology, hydroclimate, modern TCs, & coastal hazards. Multiproxy. Tea. Sake. Ultimate. Ecosocialist. Hispanohablante también. ADHD. He/Him.
Jared Rennie @jjrennie.bsky.social Research Meteorologist at NOAA’s NCEI. We archive your data and I play with it. On this hell site too along with all the others. 
Thomas Jung @thomasjung.bsky.social Head of Climate Dynamics and Vice-Director at AWI | Professor for Physics of the Climate System at University of Bremen | Interested in: Climate physics, climate change, kilometre-scale modelling, storylines, climate AI
Amal John @amaljohn.bsky.social Climate scientist | Km-scale modelling & storylines
Chris Wicklund Auroras @wickydubswx.bsky.social Meteorologist. Photographer. Sun Enthusiast. Astroguy. 🌈⛈️
SCSU 24’ MN✈️NE
Josh Morgerman @icyclone.bsky.social Hardcore hurricane chaser. Mississippi transplant. Righteous Bay Rat. The #HurricaneMan. Star of series #MissionHurricane.
Paxton Biggs @paxbiggs.bsky.social GIS - Storm Chaser - OU Grad
(I hit a deer with my car once)
YouTube.com/@paxbiggs
Misty Bentz @astronomisty.bsky.social Astronomer and Professor at Georgia State University. She/Her. Big fan of black holes, cats, and cross-stitch. Seestar smart telescope enthusiast. Novice gardener with a penchant for native plants.
Rich Wilbourn @astrorich.bsky.social Retired project manager living in Houston, Texas. Nature photographer, amateur astronomer, birder, music lover, movie fan, animal lover, Progressive in a Red State, happily married, grandfather.
All photos are my own unless otherwise stated.
Debra's Astrophotography @debraceravolo.bsky.social Astrophotographer based in BC Canada, some wildlife and landscapes thrown in there ✨📷🔭 🇨🇦. All images my own, unless repost.
www.astrobin.com/users/debraceravolo/
www.instagram.com/debraceravolo/
www.flickr.com/people/debraceravolo/
Mike Read @astromike.bsky.social Amateur astrophotographer from Wiltshire, UK. Software Developer.
🌬D a y d r e a m Astro 🌈⃤ @daydreamastro.bsky.social Panellist on Space Oddities. Take pictures of space stuff.
✏️Writer & Council member for SPA
🏅Winner of RAS award : Royal Astronomical Society
🍎Teacher
💍 wife 🍼mummy
Staring at the sky, come back and pick me up 👽 🛸
Astro Attorney ⚖️ @astroattorney.com A mix of politics and astrophotography. ☄️⭐️🪐🌞🌛 #BoredLawyersClub
Kevin Earp @astrokev.bsky.social STEM ambassador and astrophotographer.
Published images in Astronomy Now, Sky at Night and Popular Astronomy.
Member of the Tiptree Stargazers.
Paint the soul, never mind the legs and arms
Thomas Hanrath @astrocamp.bsky.social Tiredness is temporary - Astrophotos are forever. https://astrocamp.eu/en
Michele Bannister @astrokiwi.bsky.social Planetary astronomer @UCNZ: envisioning worlds from here and elsewhere, in a dark & glorious sky. Rutherford Discovery Fellow & Assoc. Professor. Asteroid (10463). Pākehā; she
Rye @spacebread.bsky.social composed of vegetables, fueled by tea. sometimes i do science.
she/who?
Colin Spacetwinks @spacetwinks.bsky.social that kangaroo what makes the game rec threads and such
Edgar ONeal-Storm Chaser @edgaroneal.bsky.social I like tornadoes.
Storm Chaser Kenneth @stormchaserkenneth.bsky.social Welcome to the chase.🌪️ Meteorologist son, Owner of Vorticity 1.
Chase @chasers.bsky.social Myth&Mortar Comms Dir
fmr Twitch & StreamElements PR dir
Global emote: PRChase
Repping Gido Gido: Kaiju Battle Party: https://store.steampowered.com/app/4234210/Gido_Gido_Kaiju_Battle_Party/
LI: www.linkedin.com/in/chase-c-b5423210/
Storm Chasers @wnbastormchasers.bsky.social I'm an independent journalist that's been covering the WNBA and the Seattle Storm since 2015. I want to be your #1 choice for Seattle Storm coverage.
Carlow Weather @carlowweather.bsky.social Alan O'Reilly from Carlow Weather offering weather updates and forecasts for Ireland along with local photos. Brand Ambassador for Autoimage Carlow
Jess Weatherbed @zombiewretch.bsky.social News Writer at The Verge. Distressingly English. Fueled by Vyvanse, instant ramen, and spite.
WeatherTiger @weathertiger.bsky.social Daily tropical newsletter at weathertiger.substack.com. Posts by Dr. Ryan Truchelut, weatherman, inframarathoner, dad, dad-humorist.
Jocelyn Anderson Photography @jocelynanderson.bsky.social Photography who is a big fan of birds