Janosch Dahmen @janoschdahmenmdb.de Unfallchirurg & Notfallmediziner. MdB @GrueneBundestag. Sprecher #Gesundheitspolitik. Mitglied im #Gesundheitsausschuss.
James Dinneen @jamesdinneen.bsky.social Science journalist reporting on Earth for @nature.com; writing book about the deep interior of Earth for @vikingbooks.bsky.social. Send tips via Signal @jamesnesw.44. Email is easy to find. Newsletter: northeastsouthwest.substack.com
Clair Barnes @clairbarnes.bsky.social Stats/data nerd and researcher at www.worldweatherattribution.org. Mostly handmade. She/her.
I'm James, I cook, I VFX. @jdhattin.bsky.social Visual Effects purveyor. Dad. Terrible musician. Cook. My opinions are my own. I started a remote VFX company 12 years ago. (he/him/a compositor) Dad of trans/queer kids.
Art & Nature @capecodfairytales.bsky.social The marriage of art and poetry is my passion.
Whitney Bauck @whitneybauck.bsky.social Award-winning journalist reporting @ the Guardian and more
Currently working on a book about fungi and the people fighting to save them
Environmental Research Fellow @ Green-Wood
https://whitneybauck.substack.com/
Carsten Diekmann @carsten-diekmann.bsky.social This account will be closed soon.
morethanbendedsteel.de
NearToTheSky @neartothesky.bsky.social Red dragon, software engineer and fearless blogger, working for vivaldi.com. No GenAI. I am active here, but my main presence is https://social.vivaldi.net/@NearToTheSky
@fravery.bsky.social @fravery.bsky.social 
Philip Oldfield @sustainabletall.bsky.social Head of School at UNSW Built Environment and Professor of Architecture. Writer, researcher & teacher, tall buildings, climate change, embodied carbon, cities
@andyburnham.bsky.social @andyburnham.bsky.social Mayor of Greater Manchester
Maximilian Rieger @mjrieger.bsky.social Journalist from Germany. Covers sport, sustainability and the climate crises. 
shipStalker @shipstalker.bsky.social 
Oceana @oceana.bsky.social Official account of Oceana International. Dedicated to protecting & restoring the world’s oceans on a global scale.
Katie Matthews, PhD @katieocean.bsky.social Lapsed geologist, Chief Scientist at @oceana.bsky.social, dog mom. DC born and raised. Philly is my 2nd home.🖖
Skeets my own, *not* my employer’s. Mostly oceans + science + climate + policy. A little politics (sorry) and Phillies (not sorry).
Morgan Edwards @energymorgan.bsky.social Professor at the University of Wisconsin--Madison. Energy systems and climate policy. Check out my work at: climateactionlab.com
Celina Scott-Buechler @celinasb.bsky.social Climate justice and governance at Duke Sanford
Tobias Hieta @hieta.se Toolchain and build tools for games. Previously at Ubisoft. LLVM Release Manager.
Jason M Ernst @jason-m-ernst.bsky.social Intelligence costs nothing.
Stupidity costs everything.
Ignorance is not knowing the difference.
Thea Riofrancos @triofrancos.bsky.social Political Scientist, Providence College
Strategic Co-Director, Climate and Community Institute
Author / Resource Radicals (Duke UP 2020)
Co-Author / A Planet to Win (Verso 2019)
Forthcoming / Extraction: The Frontiers of Green Capitalism (WW Norton)
Heather Cox Richardson (TDPR) @hcrichardson.bsky.social Historian. Author. Professor. Budding Curmudgeon. I study the contrast between image and reality in America, especially in politics.
Dr. Laurence Yeung @sneakypeteiii.bsky.social Left a tenured professorship to get my life back and make a bigger impact. Currently biking, making connections in fine coffee, and working in the climate solutions space. Had to take a solo after Flea once.
Ethan C. Campbell @ethan2sea.bsky.social Postdoc fellow at University of Washington. Antarctic sea ice enthusiast (https://ethan-campbell.github.io).
Also: bike/walk advocate @centralseattlestreetsforall.org. Board member @realchangenews.org. He/him.
Brooke Jarvis @brookejarvis.bsky.social contributing writer for The New York Times Magazine, writer for The New Yorker, Wired, and elsewhere, slowly writing a book
Tennessean on the Puget Sound, a pal and a confidant
https://brookejarvis.net 
Sarah Tuttle @niais.cryptoanarchy.network "Ok. Not good. Probably bad." Disabled, queer, Jewish, cyborg, astrophysicist, abortion funder, antifascist, wielder of wrenches. Building joy with a side of chaos. "..a wizardess is never late. Nor is she early. She arrives precisely when she means to."
Robert Suits @robertsuits.bsky.social Asst Prof/Lecturer in environmental history at University College London. Researching climate, energy, capitalism, and labo(u)r; author of The Hobo: A History of America's First Climate Migrants (Princeton University Press, 2026). Also novelist, musician.
Third Act @thirdactorg.bsky.social Elders working together for a fair and stable planet.
Join a working group by location or affinity.
Tim Knopf @lokfuehrer-tim.bsky.social @lokfuehrer_tim
Egal wie gut ihr fahrt, ich fahre Güter!
#Lokführer, #TRAINfluencer, #Betriebsrat.
#Feuerwehr Oberbrandmeister. #FCSP
Alona @alona.page she/her
https://social.treehouse.systems/@aDot
Brian Kahn @blkahn.bsky.social Your friendly local Wired science editor
Amber Woods @amberspeaks.bsky.social Investigative journalist. Trauma-informed. Survivor focused. Relentless.
Breaking News and Politics
Substack: amberspeaksup100
Support: ko-fi.com/amberspeaksup
No DMs.
Signal tips, leads: amberspeaks.47
Upscrolled: AmberSpeaksUp
Hakeem Jefferson @hakeemjefferson.bsky.social Assistant professor of political science at Stanford. Forthcoming book, Respectability Politics, with University of Chicago Press.
Not Hakeem Jeffries, the Minority Leader.
hakeemjefferson.com
Nico Theunissen @nico-theunissen.bsky.social PhD student studying alkalinity fluxes from mangrove ecosystem
Isabella Chiaravalloti @ichiaravalloti.bsky.social PhD Candidate at Yale University. N2O fluxes, enhanced weathering, and alkalinity release from blue carbon/mangrove ecosystems.
Mingyu Zhang @zmyxmu.bsky.social PhD at Yale School of the Environment studying estuarine and river carbon cycling, alkalinity export, methane biogeochemistry & sediment diagenesis.
Fieldwork • isotopes • modeling • ML • coastal systems
Giorgia Di Capua (Ph.D.) @giorgiadc.bsky.social Climate scientist working at @pik-potsdam.bsky.social
https://www.pik-potsdam.de/members/dicapua/homepage
Looking at climate and weather extremes, atmospheric teleconnections and tropical - extratropical pathways. Views are my own.
🪐 Sciconaut @sciconaut.bsky.social science by day, comics by night
Yinglin Tian @yinglintian.bsky.social Postdoc in climate and weather extremes at @pik-potsdam.bsky.social
Personal page: https://www.pik-potsdam.de/members/yinglint
Leonie Wenz @leoniewenz.bsky.social Prof of Environmental Economics @TU Berlin, deputy head of Complexity Science department + lead of Societal Transition & Wellbeing lab @PIK Potsdam, former postdoc @ARE Berkeley, member @Junge Akademie & CESifo
Sabine Mathesius @sabinema.bsky.social Earth system scientist at PIK. Primary focus: advancing ocean science in the Planetary Boundary framework. Also investigating the CDR potential of reforestation. Passionate about all life on land and in the ocean. 🦞
Wolfgang Lucht @wlucht.bsky.social ⭕ Earth system scientist; in Germany, EU - here not in official function. 💫
Verification link: https://orcid.org/0000-0002-3398-8575
Meet me at @W_Lucht@mstdn.social
Norbert Marwan @pucicu.de cave researcher, scientist at PIK, nonlinear data analysis, underwater rugby player
https://www.pik-potsdam.de/~marwan
Donovan Dennis @donovanpdennis.com Glaciologist, geochemist, writer 🏳️🌈🔥. Fan of cold hard facts gathered via equitable means. 🏔️ enthusiast. Formerly @gfz.bsky.social, now @pik-potsdam.bsky.social. Hier privat 😘.
📍Berlin
Dr. Efi Rousi @efou.bsky.social Climate scientist, Senior Editor at Nature Communications, Lover of clouds, books, art, diversity. Opinions are mine.
Lena Nicola @lenanicola.bsky.social Doctoral Researcher working on Antarctic ice dynamics at PIK Potsdam and MPI-GEA 🇦🇶🧊
Co-Chair of APECS Germany ❄️
Junior Chief Editor at PolF 📑
Views are my own.- S Sibyll Schaphoff @sibyllbrb.bsky.social plant physiology , permafrost dynamics researcher @PIK
Kai Kornhuber @kornhuber.bsky.social Theme Lead Weather Extremes & Climate Dynamics at IIASA, adj. assoc. Research Scientist LDEO, Co-Chair Risk KAN
Anna Norberg @anorb.bsky.social 🌳🐕🌍🍄🐦⬛🌾
Christoph Bertram @christoph-bertram.bsky.social Energy systems modeling & policy analysis - Associate Research Professor at Center for Global Sustainability, CGS @ctrglobsust.bsky.social at UMD @univofmaryland.bsky.social
German living and biking in DC, and with odd interest in basketball
Views my own
Robert Gieseke (Openclimatedata) @openclimatedata.net https://openclimatedata.net/
Malte Meinshausen @meinshausen.bsky.social The University of Melbourne & Climate Resource
Bjoern Soergel @bjoernsoergel.bsky.social Researching climate change, global inequality and sustainable development at Potsdam Institute for Climate Impact Research (PIK). Former cosmologist. Opinions my own.
Gunnar Luderer @gunnarenergyclima.bsky.social Energy Researcher. Leader of Energy Systems Research at PIK. Professor of Global Energy Systems at TU Berlin. Working on strategies for a rapid transformation to climate-neutral energy systems.
https://www.pik-potsdam.de/members/luderer/
Carl Schleussner @carlschleussner.bsky.social Climate Scientist at @iiasa.ac.at and Humboldt Universität zu Berlin Views are my own.
Brigitte Knopf @brigitteknopf.bsky.social Gründerin und Direktorin Zukunft KlimaSozial - Institut für Klimasozialpolitik / ehem. stellv. Vorsitzende Expertenrat für Klimafragen / vorher MCC / https://www.zukunft-klimasozial.de/
Robert Pietzcker @rpietzcker.bsky.social Energy systems researcher publishing on #EUGreenDeal #EUETS #ClimatePolicy #EnergyEconomics #RenewableEnergy | Father | Tango dancer & Hiker | Views are my own
Adrian Odenweller @adrianodenweller.bsky.social PostDoc in the Energy Transition Lab @pik-potsdam.bsky.social | Hydrogen, Electrification, Energy System Modelling | All views mine 🔌💡
https://www.pik-potsdam.de/members/adrianod
Philipp C. Verpoort @philippverpoort.bsky.social Scientist: physics, energy systems, maths | researcher @PIK_Climate | prev PhD physics @Cambridge_Uni | deliberation & sortition expert @SortitionNow | Website: philipp.verpoort.online
Pascal Weigmann @pweigmann.bsky.social energy system modeling @pik-potsdam.bsky.social
science communication @klimadashboard.org
https://www.pik-potsdam.de/members/pascalwe
Felix Schreyer @fschreyer.bsky.social Energy systems researcher at the Potsdam Institute for Climate Impact Research (PIK). Working on climate mitigation scenarios for Germany and Europe, IAMs, renewables, hydrogen, Power-to-X. 
Matthias Kalkuhl @mkalkuhl.bsky.social Head of Dept Climate Economics and Policy at PIK, Professor on Climate & Growth at U Potsdam, working on Carbon Price, Sustainability, Carbon Removal
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. 
Jarusch Muessel @jaruschm.bsky.social Mobility and energy system enthusiast
Max Franks @maxfranks.bsky.social Senior scientist @PIK_Climate and formerly @TUBerlin. #carbonpricing, #CDR, #SDGs, #economics, #inequality, -- this is my private account
Clara Bachorz @clarabachorz.bsky.social Energy systems modeling PhD student @ Potsdam Institute for Climate Impact Research | Hydrogen, e-fuels, industry
Niklas Roming @nroming.bsky.social Scientific Officer at the German Environment Agency (@umweltbundesamt.bsky.social - UBA), working mostly on global energy transition issues - views are my own- A Anselm @anselms.bsky.social Software, Climate, Econ, Physics
Currently building kinisto.com
Olivia Serdeczny @oliviaserdeczny.bsky.social Loss and damage researcher and policy advisor
Claire Fyson @clairefyson.bsky.social Climate, Berlin, bikes, trains. Researcher at PIK
Lion Hirth @lionhirth.bsky.social Hertie School and Neon. Energy markets and power systems. Known for analysis, not diplomacy.
Christian Flachsland @chflachsland.bsky.social Professor of Climate Policy, Hertie School Centre for Sustainability
Jan Christoph Steckel @jansteckel.bsky.social Political Economy & Climate change mitigation @pik-potsdam.bsky.social. Professor Political Economy of Climate Policy @tum.de #carbonpricing #inequality #coal & more ..
Peter-Paul Pichler @pppichler.eurosky.social Social Metabolism | Energy | Inequality | Sustainable Healthcare @pik-potsdam.bsky.social |OpenScience | Reproducibility | #rstats | Luddite | The purpose of a system is what it does.
Opinions my own.
Camille Belmin @camillebelmin.bsky.social Researcher, artist and lecturer @iiasa.ac.at and Angewandte.
Environment & population discourse | art & science | biopolitics | narratives and communication for socio-ecological transformation | we are compost, not posthuman|
Art IG: @myrtillus_vaccinia
Tanja Schlemm (she/her) @tschlemm.bsky.social I do numerical modelling of ice sheets, iceberg calving and sea ice melange at PIK, exploring their role in climate change and our planet’s future.
Malin Ödalen @malinodalen.bsky.social Researcher @pik-potsdam.bsky.social , modelling ocean’s role in climate system 🌬🌊🌎☀️👩💻📚
Palaeo/present/future, physics/bgc
From the Arctic, studying both poles ❄️
Check out @iapso-ecs.bsky.social http://iapsoecs.org
Views my own. she/her
@georgfeulner.bsky.social @georgfeulner.bsky.social 
Bijan Fallah @bijan-fallah.bsky.social 🌍 Climate Scientist | Berlin
🔬 Researching climate extremes, AMOC & Earth system modeling
💻 Data, AI & open science enthusiast
Nicole C. Laureanti @itlaurena.bsky.social Engenheira ambiental, meteorologista, pesquisadora, entusiasta na modelagem oceânica, ambientalista e curitibana
Environmental engineer, meteorologist, researcher, ocean modeler, environmentalist and from Curitiba, Brazil
🌎 🇧🇷🇩🇪🇺🇸
@marcohsu.bsky.social @marcohsu.bsky.social 
Ricarda Winkelmann @ricarda-winkelmann.bsky.social Founding Director | Max Planck Institute of Geoanthropology
www.gea.mpg.de
Ruben Prütz @rubenpruetz.bsky.social Postdoctoral Researcher.
PIK | HU Berlin.
Focus: Implications of carbon removal.
Sasha Roewer @sasha-roewer.bsky.social PhD student at MPI Hamburg, interested in AMOC, ENSO, and everything turbulent mixing related :)
Sebastian Seiffert @sci-ffert.bsky.social Naturwissenschaftler (Polymerchemie). Hochschullehrer (Physikalische Chemie). Im dynamischen Nichtgleichgewicht.
Madison Condon @madisoncondon.bsky.social climate risk, corporations, use & abuse of science & econ in the administrative state
papers: https://papers.ssrn.com/sol3/cf_dev/AbsByAuth.cfm?per_id=1654671
sometimes I am here and sometimes I am not
Obsidian @obsidian.md The free and flexible app for your private thoughts. For help and deeper discussions, join our community: http://obsidian.md/community
East Anglia Bylines @eastangliabylines.co.uk Powerful citizen journalism in the East of England | Regulated by IMPRESS
Follow us for national and regional news (Norfolk, Suffolk, Essex, Cambs, Herts, Beds)
Web: https://eastangliabylines.co.uk
Email: editor@eastangliabylines.co.uk
Jonathan Buonocore @jjbuonocore.bsky.social Assistant Professor at Boston University School of Public Health. Climate, Energy, and Health. Born at 344 ppm CO2
CppOnline @cpponline.bsky.social Online C++ Conference running from the 10th - 12th March 2027
Find out more at https://cpponline.uk
School of Ocean and Earth Science and Technology @soest.hawaii.edu World-class research and academic institution focused on informing solutions to some of the world’s most vexing problems.
📍University of Hawai‘i at Mānoa
🌎 https://www.soest.hawaii.edu
Patrice Roy @patriceroy1.bsky.social Université de Sherbrooke; Collège Lionel-Groulx; WG21; kids... I keep busy
arXiv physics.plasm-ph Plasma Physics @physicsplasmph-bot.bsky.social Unofficial bot by @vele.bsky.social w/ http://github.com/so-okada/bXiv https://arxiv.org/list/physics.plasm-ph/new
List https://bsky.app/profile/vele.bsky.social/lists/3lim7ccweqo2j
ModList https://bsky.app/profile/vele.bsky.social/lists/3lim3qnexsw2g
🌍⚖️ Sébastien Duyck @duycks.bsky.social Senior Attorney - #ClimateJustice & right to healthy environment at
the Center for International Environmental Law @ciel.org | demystifying international law, one emoji at a time | Focused on #ClimateJusticeAtTheICJ | Dad * Opinions my own
Richard Baker @bakerart.bsky.social http://www.cambridgeartstudio.com/ https://www.flickr.com/people/bakerart/
Lifelong artist. Not actively looking for sales at present. Posting mostly older work and some new. Images copyright except for limited personal use. 🚫AI
Tim Meko @timmeko.bsky.social Editor (and occasional builder) of graphics, maps and visual stories at the Washington Post.
Le Cartographe 🗺️🍷 @lecartographe.bsky.social A. Nicolas. Cartographe/géomaticien. #SIG #HautesAlpes #CNRSÉditions #ToponymieRomantique #QuizzTown #PosterCarto 🌍🍷🗺
www.le-cartographe.net
Ruth Mottram @ruthmottram.eurosky.social Climate scientist at DMI, Greenland, Antarctica, polar regions in general.
Now migrated to eurosky.social on here.
Mostly on mastodon though @ruth_mottram@fediscience.org
Blogging at sternaparadisaea.net
GEOMAR Helmholtz Centre for Ocean Research Kiel @geomarkiel.bsky.social We explore the global ocean, from the seafloor to the atmosphere.
Website: https://www.geomar.de/en
Imprint: https://www.geomar.de/en/impressum
#OurWorldIsTheOcean
Doug Parr @dougparr.bsky.social @greenpeaceuk.bsky.social chief scientist, policy director
View are all my own, except those I've borrowed
Jon Worth @jonworth.eu European, originally a Brit, became German, moved to France. Runs #CrossBorderRail project, writes a newsletter about railways. Green, lives happily without a car.
Normally stuck on a train, stuck in a village, or escaping either on a folding bicycle.