Bob Kopp @bobkopp.net #Climate & sea level science + policy. Rutgers University. All views my own. www.bobkopp.net
Dr. Jeff Masters @drjeffmasters.bsky.social Extreme weather and climate change expert writing for Yale Climate Connections. Co-founder, Weather Underground; former hurricane hunter.
Kate Marvel @drkatemarvel.bsky.social Climate scientist, formerly NASA, currently Project Drawdown. Former astrophysicist, current Earth supremacist. Author of HUMAN NATURE, best book of 2025 according to both Scientific American and my dad https://shorturl.at/aJRYb
Dan Visioni @danvisioni.bsky.social Climate scientist studying aerosols, chemistry, radiation, climate & society from Volcanoes 🌋and Climate Intervention. Assistant Professor at Cornell EAS, from 🇮🇹proudly🏳️🌈 More at https://dan-visioni.github.io/ and https://www.wcrp-climate.org/ci-overview
IPCC @ipcc.bsky.social Intergovernmental Panel on Climate Change
Felicity Liggins @felicityliggins.bsky.social Education Outreach and Early Careers Manager at the Met Office. Birds, moths, hedgehogs, cycling, walking, food & drink may also feature. Views all my own. She/her.- A Andrea Dittus @andreadittus.bsky.social Research Scientist at the University of Reading & National Centre for Atmospheric Science | Views own.
Jarmo Kikstra @kikstra.bsky.social Research scholar at IIASA. Imperial College London. Lead Author IPCC AR7 WG3. Climate, energy, economics, decent living standards, and justice.
Priestley Centre for Climate Futures @priestleycentre.bsky.social Bringing together climate experts from across the University of Leeds to develop innovations, deliver education and inform policy for a better future.
Citizens’ Climate Lobby Canada @citizenslobbyca.bsky.social Empowering citizens to advocate for pollution pricing and climate-aligned finance. Building a liveable world since September 2010. Focus is our superpower.
canada.citizensclimatelobby.org
Eric Maugendre about emissions @data.yt Data scientist; researching future climate policy.
I calculate how to avoid much carbon emissions: http://data.yt
Banner is a directed acyclic graph. Avatar shows a white man in a heatwave.
Realthailand @realthailand.bsky.social Twitch Streamer
>>> https://www.tipeeestream.com/thailand_journey/donation
>>> https://www.twitch.tv/thailand_journey
>>> https://taplink.cc/realthailand1
>>> https://buy.stripe.com/bJe7sNbZDeRM1zB3TbaIM00
Tzeporah Berman @tzeporah.bsky.social Chair and Founder of Fossil Fuel Non-Proliferation Treaty @fossiltreaty.bsky.social | International Program Director @stand.earth
📍Vancouver, BC
https://bio.site/tzeporah
Matt Berkley @mattberkley.bsky.social Sentientism, food policy for desired/anticipated consumption patterns, plant-based food for climate, consumption behaviour, history and reporting of global goals, framing.
Alexander Matzner @alexandermatzner.bsky.social bsky-social-fckafd-fckfw-fckcsu
Harry Zekollari @harryzeko.bsky.social Glaciologist - Associate professor at @vubrussel.bsky.social
Interested in glaciers, climate, hydrology, meteorites,...
Previously at ETH Zurich, WSL Birmensdorf, TU Delft, and Université libre de Bruxelles.
@chriswells95.bsky.social @chriswells95.bsky.social 
Alex Romero Prieto @arp-climate.bsky.social 
Robert McSweeney @rtmcswee.carbonbrief.org Senior Science Editor at Carbon Brief, with a fondness for baking and Arsenal FC. All opinions are my own, however dull they might be.
Andy Wiltshire @andywiltshire.bsky.social Climate and Earth System Scientist - University of Exeter and Met Office Hadley Centre, UK
Friederike Fröb @rikefroeb.bsky.social Researcher at UiB and BCCR, Norway / Ocean Science / Carbon Cycle / Detection and Attribution / Tipping points
TipESM @tipesm.bsky.social Website – 🌐 www.tipesm.eu
YouTube – ▶️ https://www.youtube.com/@TipESM
Zenodo – 📚 https://zenodo.org/communities/tipesm
LinkedIn – 💼 https://www.linkedin.com/company/tipesm 
Rebecca Varney @rebeccamayvarney.bsky.social Climate scientist @ Stockholm University 🌍 🌳 🍂 #WomenInSTEM (She/her)
Gregory Munday @gergmunday.bsky.social Climate science 🤝 ML @ University of Oxford 🌍
Ayesha Tandon @ayeshatandon.carbonbrief.org Climate science correspondent at @carbonbrief.org
Norman J. Steinert @njsteinert.bsky.social 
Doug McNeall @dougmcneall.bsky.social Science Lead for Data-Driven Climate Modelling @ UK Met Office | University of Exeter | AI, UQ, Countering mis/disinformation.
dougmcneall.com
Faculty of Environment, University of Leeds @envleeds.bsky.social World-leading education and research from the Schools of Earth & Environment, Food Science & Nutrition, Geography, and the Institute for Transport Studies.
Pursuing a cleaner, greener world. 🌍🌊🔬🥬🚆
environment.leeds.ac.uk #AcademicSky #geosky #EnvSci
Philip Bett-Williams @pbett.bsky.social Climate science & service development @MetOffice.bsky.social 3days/wk.
Dadding 8+days/wk.
👨💻🌐📈 🚼
My tweets don't necessarily represent the views of my employer, or toddler.
Anna Harper (she/her) @docaharper.bsky.social Climate, carbon cycle, Earth system modeling, and land based mitigation | IPCC AR7 lead author | Assoc prof in Geography & Atmospheric Sciences at the University of Georgia | Views my own. Also ☕🏃🏼♀️🚴🏼♀🏊🏾♀️☕
Ben Sanderson @benmsanderson.bsky.social Climate scientist at CICERO, Oslo. I try to talk about climate science, but inevitably start talking about trains and bicycles if left unattended.
Carol McSweeney @cfmcswede.bsky.social Climate scientist interested in regional projections for UK/Europe, cycling, running and all things baked or brewed.
Robert Dunn @rjhd2.bsky.social Bicycle user, Climate scientist, European. Working on climate monitoring and datasets in Devon, GB. He/him
Paul Griffiths @paultgriffiths.github.io Lecturer in atmospheric chemistry at the University of Bristol (🧪).
Exeter Cycling Campaign @exetercycling.bsky.social Exeter Cycling Campaign - speaking up for everyday cycling to be safe, convenient & connected in and around Exeter.
Freya Roberts @freyaroberts.bsky.social Project/programme/portfolio management at UCL Climate Action Unit. Background in climate comms and environmental sciences. Previously at Carbon Brief. Loves: cycling, wild swimming, watersports, cocker spaniels & working with people.
John Caesar @jcaesaruk.bsky.social 
Chris Jones @chrisd-jones.bsky.social Climate and carbon cycle modeller. Hadley Centre and U. Bristol, UK. 
Cycling @cycling.bsky.social Headlines, photos, and news from the cycling universe — road, mountain, gravel, and cyclocross
Dr Jess Baker @jesstreebaker.bsky.social Climate scientist, runner, parent. Researching forest-climate interactions and land use change impacts at Uni of Leeds.
Chris Smith @cjsmith.eu Climate scientist at IIASA. IPCC AR7 CLA. Responsive climate projections. The guy behind the fair model and radiative forcing barchart. Occasional runner and guitarist.
github.com/chrisroadmap | cjsmith.eu
Dominic Lavelle @dominiclavelle.bsky.social Interested in solutions to climate change. Personal account, all opinions mine. #ActOnClimate
Dr. Rebecca Barnes (she/her) @waterbarnes.bsky.social Chronicling science, pet, & art adventures. #biogeofeminist catalyzing change -- to make the scientific enterprise welcoming & just. Sometimes creative, always sassy 🏞️⚛️💦🌿🏳️🌈☮️💙⚒️✍️🎨🐾
Dara O’Rourke @daraorourke.bsky.social Teach at UC Berkeley. Research climate innovations, climate justice, corporate decarbonization, rapid transitions. But mainly here for the snark and indignation. 
Kelly Hereid @kellyhereid.bsky.social Climate scientist, geologist, and catastrophe modeler, Liberty Mutual. Posts on all things hurricane, wildfire, flood, earthquake, tornado. Sassy takes are mine not employer's.
📍Oakland, CA
Website: hereidk.strikingly.com
Dr. Lucky Tran @luckytran.com Scientist, science communicator, public health & climate justice advocate
Biology PhD from Cambridge
WHO Fides member, Grist 50 Fixer, Creative Change alum
New Yorker/Aussie
Opinions my own
https://instagram.com/luckytran
http://linktr.ee/luckytran
Jess Fanzo @jessfanzo.bsky.social The James Anderson Professor of Food Policy and Climate at Johns Hopkins University's School of Advanced International Studies (SAIS) in Bologna, Italy. Lover of goats, food + drink. Curator of thefoodarchive.com
Dr. Samantha Montano @samlmontano.bsky.social Working on disaster justice & the climate crisis. Emergency Management PhD. Author of 📚DISASTEROLOGY 📚 she/her
Daniel Swain @weatherwest.bsky.social Weather and climate scientist focused on extreme events like floods, droughts, & wildfires on a warming planet. www.weatherwest.com
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/
Zack Labe @zacklabe.com Climate Scientist at @climatecentral.org | PhD | Passionate about improving science communication through data-driven stories | Harrisburg, PA | https://zacklabe.com/
Views, thoughts, and opinions expressed here are only my own.
Ken Caldeira @kencaldeira.com Mostly mentoring a group of postdocs.
Conceptual Investigations Unit, housed at Stanford.
Senior Scientist at Gates Ventures.
climate / energy / etc
https://ciunit.org
Posts imperfectly represent the views of my former self and not my employer.
Rose Abramoff @ultracricket.bsky.social Earth scientist and activist. She/they. Opinions expressed are my own - Facts expressed are science.
climateemergencyfund.org
Dr. Dawn Wright @deepseadawn.bsky.social Seafloor mapper, Chief Scientist of smart mapping company Esri, Oregon State U. GIS/oceans professor, EC50, cyclist, 1st Black submersible diver to Challenger Deep, builds w/LEGO, raised in Hawaii. NAS, NAE, ORCID 0000-0002-2997-7611; She/her; views mine
Jeff Berardelli @weatherprof.bsky.social Same @WeatherProf as Twitter. Posting about climate and weather. Chief Meteorologist and Climate Specialist WFLA NBC Tampa 
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.
Valérie Masson-Delmotte @valmasdel.bsky.social PhD, climate scientist @lsce-ipsl.bsky.social @CEAParisSaclay @IPSL_outreach @hc_climat. Was co-chair @ipcc.bsky.social (AR6 WGI). Member of French Academy of Technology and Academy of Sciences.
Jacquelyn Gill @jacquelyngill.bsky.social Climate, extinction, and biodiversity scientist at the University of Maine researching Earth’s past for a better future. Writing and podcasting for the planet. Chaotic good professor. She/her.
Michael E. Mann @michaelemann.bsky.social Scientist/Author/Speaker; Presidential Distinguished Prof/Director Center for Science, Sustainability & the Media, U. Penn; National Academy of Sciences; American Academy of Arts & Sciences; Royal Society; Tyler Prize
Prof. Stefan Rahmstorf @rahmstorf.bsky.social Climate scientist, professor of Physics of the Oceans in Potsdam. Dad. Opinions my own.
Born at 317 ppm CO2.
Marshall Shepherd @drshepherd2013.bsky.social Weather-Climate professor and scientist, Host of Weather Geeks, Forbes Senior Contributor, Alpha, 3xFSU Alum...Tweets and RTs are mine but not endorsements
Reto Knutti @retoknutti.bsky.social Professor for climate physics at @ethzurich.bsky.social.
Heidi Cullen @heidicullen.bsky.social climate change 🌡/extreme weather ⚡️/science communication 📣 | ocean health 🌊/ Climate Director @schmidtsciences | formerly @MBARI_News @WWAttribution @ClimateCentral @weatherchannel @NCAR_Science | i ❤️ Labs | thalassophile 💙
David Ho @davidho.bsky.social Climate scientist; ocean carbon cycle and climate solutions. Professor @soest.hawaii.edu, University of Hawaiʻi at Mānoa; Visiting Faculty, Arizona State University. https://linktr.ee/david_ho
Gavin Schmidt @climateofgavin.bsky.social Climate scientist, juggler. Bikes etc. Blogging at https://www.realclimate.org - data visualization, explainers, and debunking.
Ed Hawkins @edhawkins.org Climate scientist at the National Centre for Atmospheric Science, University of Reading | IPCC AR6 Lead Author | MBE | Views own | https://edhawkins.org
Warming Stripes: http://www.ShowYourStripes.info
Prof. Sonia I Seneviratne @soniaseneviratne.bsky.social Professor at ETH Zurich, IPCC WGI Vice-chair.
#Climate #Extremes #Land.
Citizen/mum/scientist. Personal account.
https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter11.pdf
Twitter/X: @SISeneviratne
https://www.iac.ethz.ch/people/sonia
Zeke Hausfather @zekehausfather.com "A tireless chronicler and commentator on all things climate" -NYTimes.
Climate research lead @stripe, writer @CarbonBrief, scientist @BerkeleyEarth, IPCC AR7 lead author.
Website: https://zekehausfather.com/
Substack: https://www.theclimatebrink.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
Climate Change Committee @thecccuk.bsky.social The UK’s independent adviser on tackling climate change.
https://www.theccc.org.uk/
Better Things Are Possible @internethippo.bsky.social 
The Onion @theonion.com America’s Finest News Source. A @globaltetrahedron.bsky.social subsidiary.
Get the paper delivered to your door: membership.theonion.com
Join The Onion Newsletter: https://theonion.com/newsletters/
wint @dril.bsky.social Never Bullshit
I challenge any and every one who wants to kick my ass to a debate .
https://www.patreon.com/dril
https://www.instagram.com/dril
https://linktr.ee/drilreal
Monterey Bay Aquarium @montereybayaquarium.org How do you do, fellow squids? 🌊 We're your frondly Aquarium with a mission to inspire conservation of the ocean. https://www.montereybayaquarium.org
Get To Know Nature @gettoknownature.bsky.social Fascinated by nature: birds, frogs, beach, sky & more. All media by me w/ a long lens. No AI! Lots of nature goodness here & on YouTube & Patreon. (In PA, USA)
Mini nature documentary every Saturday. https://www.youtube.com/gettoknownature
San Diego Zoo Wildlife Alliance @sandiegozoo.bsky.social San Diego Zoo Wildlife Alliance is an international non-profit committed to inspiring passion for nature and creating a world where ✨ all ✨ life thrives.
Daryll Marie @daryllmarie.bsky.social Bioacoustician & PhD candidate using sound to study baleen whale movement ecology 🐋 Wildlife photographer, birder, nature nerd 🪶
IG: instagram.com/daryllmariephotos
Ko-fi: https://ko-fi.com/daryllmarie
Ed Yong @edyong209.bsky.social Writer, journalist. Science, health. Pandemics, animals. Birder, photographer. Many words, some awards. AN IMMENSE WORLD, I CONTAIN MULTITUDES. Married to Liz Neeley, parent to Typo. he/him
📷 Canon R6mkii + RF 800mm
Edyong.me
Rebecca Heisman @rheisman.bsky.social Not really on social media much anymore. If you need to reach me, use rebeccaheisman.com/contact!
Jon Bois @jonbois.bsky.social jon
https://www.patreon.com/c/SecretBase
https://www.youtube.com/SecretBaseSBN
Adam Schefter - Mirror @adamschefter-mirror.bluesky.bot ESPN Senior NFL Insider. Host of the Adam Schefter Podcast https://www.instagram.com/accounts/login/?next=https%3A%2F%2Fwww.instagram.com%2FAdamSchefter%2F&is_from_rle
Shea @sheacarlson.bsky.social nba editor @ espn. writer. rascal.
Noah Shachtman @noahshachtman.bsky.social contributing editor at Wired // contributing writer at NYT opinion // making trouble at ■■■■■■■■ // https://signal.me/#eu/3aA6cspNTXUEOtEYwaK6KOFIw8nf-7G1jQBd3MRqrDeUvZxfzp5Py61cKq4GbcNg
PoliticsHome @politicshome.bsky.social Exclusive stories and insight from Westminster via PoliticsHome and The House magazine. Read our reporting at https://www.politicshome.com and subscribe to The Rundown podcast: http://bit.ly/3M8d963
Tom Scocca @tomscocca.bsky.social Executive editor, features, CNN. Serial fiction and archives of nonfiction at Indignity.net. This Bluesky is about the Machines.
Financial Times @financialtimes.com The best of FT journalism, including breaking news and analysis.
https://www.ft.com
The users this account follows are verified FT staff or contributors.
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.
c0nc0rdance @c0nc0rdance.bsky.social Molecular biologist from Texas, here to share my meanderings on nature, science, history, politics, and zombies. Long threads a specialty.
Mike Brown @plutokiller.com Astronomer, planet hunter, Pluto killer, bear whisperer, finger-wrapped dad. Dangerous secularist. Foot soldier in the War on Cars. He/him.
mikebrown.caltech.edu