- C @cherylw.bsky.social @cherylw.bsky.social
Paul Voosen @voosen.me Dad of two. Earth, climate, and planetary science reporter @Science.org magazine. Mistrusts narratives; still writes them.
https://www.science.org/content/author/paul-voosen
https://sciencemastodon.com/@voooos
voosen@protonmail.com
Signal: @voosen.01
Scott Doney @scottdoney.bsky.social Ocean and climate scientist and professor
Avi Lewis @avilewis.ca Leader of Canada’s NDP / Le chef du NPD fédéral
https://linktr.ee/avi.lewis
The Globe and Mail @theglobeandmail.com Canada's national newspaper, but on Bluesky
Nature Climate Change @natclimate.nature.com A monthly journal dedicated to publishing cutting-edge research on the nature, underlying causes or impacts of global climate change and its implications for the economy, policy and the world at large https://www.nature.com/nclimate
IPCC @ipcc.bsky.social Intergovernmental Panel on Climate Change
UN Environment Programme @unep.org Official account of the United Nations Environment Programme
https://www.unep.org/
Environmental Defense Fund @envdefensefund.bsky.social Using bold solutions to build a cleaner, healthier world. We're finding the ways that work.
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.
Our World in Data @ourworldindata.org Our World in Data is a free, nonprofit website with a mission to increase understanding of the world’s largest problems and drive informed action to solve them. Based out of Oxford University (@ox.ac.uk), founded by @maxroser.bsky.social.
EGU Atmospheric Sciences Division @egu-as.bsky.social Official bluesky account of the European Geosciences Union (EGU) Atmospheric Sciences Division. 
Climate and Clean Air Coalition @ccacoalition.bsky.social Global partnership tackling Super Pollutants to combat climate change & air pollution. Secretariat @unep.bsky.social.
Amy Townsend-Small @atownsendsmall.bsky.social Professor at University of Cincinnati measuring methane emissions and working on reducing them
Felix Vogel @freelancingbird.bsky.social Chasing Greenhouse Gases...
Views and likes are my own.
Toronto District School Board @tdsb.on.ca The Toronto District School Board is Canada's largest school board and welcomes more than 239K students each day. Account is not monitored 24/7.
@uoftenvironment.bsky.social @uoftenvironment.bsky.social The School of the Environment @UofT is an interdisciplinary hub for education and scholarship on the environment and sustainability. Subscribe to our ENVision newsletter https://tinyurl.com/2r9c4hvp
ICOS RI @icos-ri.eu European research infrastructure providing open & standardised greenhouse gas data for climate action
World Meteorological Organization @wmo-global.bsky.social 
Nature @nature.com Research, news, and commentary from Nature, the international science journal. For daily science news, get Nature Briefing: https://go.nature.com/get-Nature-Briefing
AerosolWatch @aerosolwatch.bsky.social Satellite observations of global aerosol and air quality events, including wildfires, dust storms, and haze. Featuring NOAA satellite products from the AerosolWatch website (https://www.star.nesdis.noaa.gov/smcd/spb/aq/AerosolWatch/).
Morgan E O’Neill @morganeoneill.bsky.social Assistant Professor in Physics, University of Toronto. Climate scientist. Settler. Thoughts my own.
Stop the genocide! Free Palestine!
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/
Dr. Jonathan Foley @globalecoguy.bsky.social - Executive Director, Project Drawdown drawdown.org
- Climate scientist, working on solutions
- Passionate about science, communication, and hope
- Minnesota based, Maine born
- Personal account / My views
Peter Griffith @carboncyclist.org Carbon, climate, justice, from space, in Baltimore
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.
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.
Eos @eos.org Eos is a leading source for trustworthy news and perspectives about the Earth and space sciences and their impact. Published by the American Geophysical Union (@agu.org).- K The Keeling Curve @keelingcurve.bsky.social Official daily update on atmospheric CO2 levels in the post-400 ppm era from Scripps Institution of Oceanography's iconic Keeling Curve.
School of Cities @uoftcities.bsky.social A hub for city research, education and engagement/outreach at U of T. Stay tuned for new #SofC initiatives at http://linktr.ee/uoftcities
Skeptical Science @skepticalscience.bsky.social Non-profit science education organization building public resilience against climate misinformation. More at http://sks.to/welcome
Canada's National Observer @nationalobserver.com Canada's National Observer delivers vital reporting on the defining crisis of our time: climate change. Through rigorous investigation and compelling storytelling, we expose the forces shaping Canada's climate future.
www.nationalobserver.com/newsletters
Dietrich Feist @dgfeist.bsky.social Physicist working in atmospheric and climate research, father, traveller, long-distance commuter, no car, Linux. Ex ATGM specialist 🪖.
Opinions are my own. 🇪🇺🇩🇪🇨🇦🇬🇱
EUMETSAT @eumetsat.int European operational #satellite agency for monitoring weather, #climate and the environment from #space 🛰
eumetsat.int
Auke Visser @aukevisser.bsky.social Scientist working on monitoring emissions of air pollutants and greenhouse gases at the Copernicus Atmosphere Monitoring Service at ECMWF
John Green @johngreensbluesky.bsky.social Author (The Fault in Our Stars, The Anthropocene Reviewed, etc.)
YouTuber (vlogbrothers, Crash Course, etc.)
Football Fan (co-owner of AFC Wimbledon, longtime Liverpool fan)
Opposed to Tuberculosis
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
ClimateBook @climatebook.bsky.social This is the BlueSky feed of Raymond T. Pierrehumbert, Professor of Planetary Physics at the University of Oxford. Tune in for news about Principles of Planetary Climate, and diverse science and political commentary. (Also folk music news)
MethaneSAT @methanesat.bsky.social First methane-tracking satellite launched by an NGO. While contact is lost, the mission continues: advancing tech, sharing data, cutting emissions. A project of Environmental Defense Fund.
UNICORN Heidelberg Mannheim @unicorn-uhei.bsky.social University Network for CO2 in the Rhine-Neckar metropolitan area (UNICORN)
André Butz @abutz.bsky.social Atmospheric physicist, carbon cycle, greenhouse gases, photochemistry, radiative transfer, remote sensing, spectroscopy @Institute of Environmental Physics, @Heidelberg Center for the Environment, Heidelberg University
Mike Crawley - CBC News @cbcqueenspark.bsky.social Senior reporter @CBCNews covering Ontario politics on TV, radio & web. Dad, runner, XC skier, reader, cookie baker. #GoHabsGo Tips: DM or email mike.crawley@cbc.ca
Jeff Allen @jamaps.bsky.social maps, graphics, cities (mostly toronto), ..
website: https://jamaps.github.io/
github: https://github.com/jamaps
~9-5 M-F: https://schoolofcities.utoronto.ca/research-type/data-visualization/
Upstream Timeout @shawnmicallef.bsky.social Local tosser
Books author (New: Stroll!)
Toronto Star column writer
Spacing Magazine co-founder
U of T instructor
Trying to do it a bit different here than the last place.
Links to books, etc:
https://linktr.ee/shawnmicallef
🏳️🌈🏳️⚧️🤘🏼
Peter Beinart @peterbeinart.bsky.social CUNY, Jewish Currents, New York Times, MSNBC. Foundation for Middle East Peace fellow.
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!
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
@nicholas-deutscher.bsky.social @nicholas-deutscher.bsky.social 
Robert Maiwald @r-maiwald.bsky.social PhD Candidate @Institute of Environmental Physics, Heidelberg University | ECS Representative, Atmospheric Sciences (EGU) | Heinrich-Böll Foundation Scholar
Clare Blackwood @clareblackwood.bsky.social Actor/comedian/writer in Toronto. Words in The Beaverton, CBC Comedy, The Toronto Star, McSweeney’s, etc. Pierre Poilievre's personal assistant Mandy. she/her clareblackwood@gmail.com https://www.patreon.com/cw/ClareBlackwoodComedy
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
Steve Brown @stevenslbrown.bsky.social Atmospheric Scientist | Chemistry Professor | Dad | Views my own
International Journal of Wildland Fire @ijwildlandfire.bsky.social Journal of the International Association of Wildland Fire
Publishing fundamental & applied fire research, including fire modelling, management, ecological & societal impacts.
https://www.publish.csiro.au/wf
Last Week Tonight with John Oliver @handle.invalid The official Bluesky account of Last Week Tonight with John Oliver. youtube.com/lastweektonight
@DrJoePajak CSci CChem FRSC @drjoepajak.bsky.social PhD in physical chemistry, research experience in thin‑film dynamics, surface forces, wetting, and rheology. Served 11 yrs as an NHS hospital public governor with two trusts.
With airborne pathogens, clean indoor air is vital.
mstdn.science/@JoePajak
Brittlestar @brittlestar.com Social Media Darling. International Bestselling Author. Occasionally funny. Brittlestar.com
NASA 🔴 Image of the Day (Unofficial) @nasa-daily.bsky.social Regular posts of historical and current NASA "images of the day".
This account is not associated with NASA, but will always post genuine images with full attribution, sourced from www.nasa.gov/image-of-the-day
Managed by 🔴 @redshift.pics
Jesse Kroll @jessekroll.bsky.social atmospheric chemist at MIT; also does other stuff sometimes
Krystal Vasquez @kvasquez.bsky.social Science policy reporter @cenmag.bsky.social. Based near LA. I write a lot about science funding and diversity in STEM.
Email: k_vasquez(at)acs.org
Signal: kvasquez.12
Once upon a time, I was an atmospheric chemist.
All views and opinions are mine.
Sanam Vardag @sanamnv.bsky.social Atmospheric physicist, carbon cycle, greenhouse gases, atmospheric transport, urban emissions, semi-arid regions, climate action science
@Institute of Environmental Physics and @Heidelberg Center for the Environment, Heidelberg University
Peter Sagal @petersagal.bsky.social I make Dad jokes on NPR and also write books and other things. 
Mark Carney @mark-carney.bsky.social Prime Minister of Canada and Leader of the Liberal Party | Premier ministre du Canada et chef du Parti libéral
markcarney.ca 
Catherine McKenna @cathmckenna.bsky.social 🌱 CEO, Climate & Nature Solutions; Chair UN Net Zero.
🇨🇦Former Minister of Environment & Climate
🏃♀️Author, Run Like a Girl
Order your copy today ⬇️
www.catherinemckenna.ca
📩 contact@climateandnature.com
Copernicus ECMWF @copernicusecmwf.bsky.social The #CopernicusClimate Change Service (#C3S) & #CopernicusAtmosphere Monitoring Service (CAMS), implemented by @ecmwf.int on behalf of the @ec.europa.eu.
Tara Moriarty @moriartylab.bsky.social Associate Professor, University of Toronto. Bloodborne infections, Lyme disease, misinfo. COVID-19 Resources Canada. Defend journalism. Look for the helpers. Opinions mine. 🇨🇦🏳️🌈
https://covid19resources.ca
Christian Frankenberg @cfranken.bsky.social Caltech/JPL
David Fisman. @dfisman.bsky.social Notorious pro-vaxxer and pro-masker. Famously unfair to pathogenic viruses, bacteria, fungi, and the Toronto Star.
Weary of all these death threats with so little follow-through.
https://www.dlsph.utoronto.ca/faculty-profile/fisman-david-n
Audrey Moores @audreymoores.bsky.social McGill Green and Sustainable Chemistry Prof, Exec Editor @ACSSustain,President College @RSC-SRC 🇨🇦🇫🇷🇬🇧Wife, Mother, Cat lover, Gardener, Aspiring Beekeeper 🐈 🪴 🐝
The Royal Society of Canada // La Société royale du Canada @src-rsc.bsky.social Sharing expertise for a better future together |
Partageons l'expertise pour un meilleur avenir commun
www.rsc-src.ca
Katie Mack @astrokatie.com Cosmologist, pilot, author, connoisseur of cosmic catastrophes. TEDFellow, CIFAR Azrieli Global Scholar. Domain verified through my personal astrokatie.com website. She/her. Dr.
Personal account; not speaking for employer or anyone else.
University of Toronto @utoronto.ca Welcome to #UofT! Canada’s top university, and a catalyst for discovery, innovation, and progress. #UofTDefyGravity
🔗 utoronto.ca
Jessica Green @greenprofgreen.bsky.social Immigrant. Poli sci prof at U of Toronto. Politics of climate change, carbon markets, oceans, NGOs, enviro politics. Author of Existential Politics, out now: tinyurl.com/ybephkfb. Occasional ranter. greenprofgreen.com
Cycle Toronto @cycletoronto.bsky.social We're a member-supported charity that's been leading the change for a healthier and more vibrant city since 2008.
Join the movement: www.cycleto.ca
Toronto Star @thestar.com Canada's biggest daily newspaper thestar.com
The Daily Show @thedailyshow.com Weeknights 11/10c on Comedy Central and Paramount+
Geoffrey Supran @geoffreysupran.bsky.social Professor of Environmental Science & Policy and Director of Climate Accountability Lab at University of Miami's Rosenstiel School of Marine, Atmospheric, and Earth Science.
Investigating Big Oil's climate propaganda. Formerly Harvard, MIT, Cambridge.
Erica Whiting @ericawhiting.bsky.social Ph.D Candidate at the University of Michigan
Atmospheric Science 🌍🛰️
[she/her]
The New Yorker @newyorker.com Unparalleled reporting and commentary on politics and culture, plus humor and cartoons, fiction and poetry. Get our Daily newsletter: http://nyer.cm/gtI6pVM
Follow The New Yorker’s writers and contributors: https://go.bsky.app/Gh5bFwS
European Geosciences Union (EGU) @egu.eu European Geosciences Union is the leading organisation supporting Earth, planetary & space science researchers in Europe. #EGU27 | 4–9 April 2027 | On-site & Online | Mon-Fri 10-17 CEST.
Randall Munroe @xkcd.com 
Kimberly Prather PhD @kprather.bsky.social Atmospheric Chemistry professor, air quality, clouds-climate, health, viruses, bioaerosols, public speaker, environmental justice. ❤️ ❤️ gardening, cooking, empathy.
https://airborne.ucsd.edu
https://kprather.scrippsprofiles.ucsd.edu/
Dylan B. Millet @dbm.bsky.social Atmospheric chemist | 🇨🇦🇺🇸 | Distinguished McKnight University Prof @ U Minnesota
Bram (J.D.) Maasakkers @jdmaasakkers.bsky.social Atmospheric Scientist at SRON working on better understanding anthropogenic methane and carbon monoxide emissions.
Colette Heald @coletteheald.bsky.social Canadian 🇨🇦, ETH professor🇨🇭, atmospheric chemist, researcher, educator, wanderer, and wonderer- R Róisín Commane @roseatmos.bsky.social Atmospheric chemist learning about cities after spending lots of time learning about forests and Arctic tundra
Hannah Nesser @hannahnesser.bsky.social Atmospheric scientist/NASA Postdoctoral Program fellow at JPL using satellite observations to study greenhouse gas emissions (she/her)
Cora Young @svocora.bsky.social Chemist, environmentalist, all-around nerd | Professor & Rogers Chair in Chemistry at York U in Toronto, Canada | www.cjygroup.com | Posts my own | She/her
Jenny Fisher @atmosjennyf.bsky.social Atmospheric Chemistry | Tertiary Education | Science Policy | Diversity, Equity & Inclusion | Triathlon | Scuba Diving | 🇦🇺 on the lands of the Bindal & Wulgurukaba peoples. she/her. views my own.
Kelvin Bates @kelvinb.bsky.social Atmospheric chemistry • Research scientist @ NOAA, soon-to-be assistant prof at CU Boulder MechE • he/him- D @dfpollard.bsky.social @dfpollard.bsky.social
Mark Parrington @mparrington.bsky.social ECMWF senior scientist working on monitoring global #wildfire emissions, #airquality, atmospheric chemistry & #scicomm for the #CopernicusAtmosphere Monitoring Service @copernicusecmwf.bsky.social @ecmwf.int
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- P Paul Palmer @paulipalmer.bsky.social Climate scientist: carbon cycle; atmospheric methane and CO2; tropospheric chemistry; satellite data; Martian atmospheric photochemistry; exoplanetary atmospheres. https://sites.google.com/view/palmer-group/home
RealClimate feed @realclimate.org Climate Science from Climate Scientists since 2004
https://www.realclimate.org
Dien Wu @dienwu.bsky.social @CSUAtmosSci｜Atmos Composition 💻 🛰🌆🌾🔥
http://dienwu.me/
Bill McKibben @billmckibben.bsky.social Founder 350.org and Third Act, author The Crucial Years on substack https://billmckibben.substack.com/
Author of 21 books, beginning with The End of Nature
Christine Wiedinmyer @cwiedinm.bsky.social Science administrator at CU Boulder. Study air quality and pollution emissions, all things wildfire and open burning. Women in science. Go Buffs! 
Jeffrey Geddes @jgeddes.bsky.social Associate Professor of Earth & Environment at Boston University. Air quality, atmospheric chemistry, and remote sensing. Toronto, Halifax, Boston. he/him. 🏳️🌈 🍁 🌎 https://sites.bu.edu/jged/
NPR @npr.org This is NPR 🎙️
WIRED @wired.com For Future Reference.
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Find our WIRED journalists here: https://go.bsky.app/Boj9b5E