Advocate for climate action, clean energy & democracy. Likes to play outside. Director with Sierra Club Foundation, Way to Rise, and Clean Energy Transition Institute and recently Director and Vice President with Sierra Club.
Email salesman at Platformer.news and co-host at Hard Fork.
Climate scientist investigating climate dynamics and paleoclimate. Currently a Houghton Postdoctoral Fellow at MIT @eapsmit
Executive Director, Transportation Alternatives
Former: @Cornell; @nycmayor.
The greatest city in the world should have the greatest streets in the world. Views mine. 🗽
Join us! https://transalt.org/membership
Glaciologist & Deputy Lead Scientist @nsidc.bsky.social. Climate Science Engagement Lead @ciresceee.bsky.social. 2025 AGU Climate Comms Awardee. More at www.changingice.com. Views my own!
From IAP/CAS. Working on ocean data (T/S/Oxygen) and gridded products, ocean heat content and energy flow, freshwater, oxygen changes. IPCC author.
Director, Oxford Sustainable Finance Group, University of Oxford. Finance, climate, energy, sustainability and nature. Working globally with financial institutions, companies, governments, regulators and civil society.
Teaching Carbon Neutrality @ KAIST | previously @PNNLab & @CtrGlobSust | Decarbonizer of Energy | Defender of IAM | future kpop rapstar | tweets and rhymes my own
Climate Scientist at @iiasa.ac.at and Humboldt Universität zu Berlin Views are my own.
Professor in Climate and Environmental Physics @unibern, Lead Author @IPCC_CH SROCC, Views are my own
Professor, Climate Science | heatwaves | ANU Fenner School | Deputy Director Engagement & Impact, @21centuryweather | convening lead author @IPCC AR7 | co-host totally cooked podcast | @AMOS president | Climate Comms | Mother | Runner | #ADHD
Scientist @EU_Commission's Joint Research Centre. Forests, carbon and climate in the science/policy interface. Member #IPCC task force Bureau #AR7. Views mine.
Professor, Central European University
@CEU
Vice Chair, Intergovernmental Panel on Climate Change
@IPCC_ch
New York Times Opinion writer and New York Times Magazine columnist. Newsletter on climate and the messy future (https://tinyurl.com/dwwnyt). Author of The Uninhabitable Earth.
https://www.nytimes.com/newsletters/david-wallace-wells
AFP journalist covering climate mis/disinformation 🌊🌎 • Previous bylines with Politico, Reuters, Eater • Imagineering nerd ✨ • She/her • Got a tip for me? DM or firstname(dot)lastname(at)afp.com 📨
Director, Stanford Woods Institute for the Environment.
Co-founder and lead analyst, Centre for Research on Energy and Clean Air; senior fellow, Asia Society Policy Institute: tracking & accelerating progress from polluting energy to clean air, with research and evidence.
🤸🏻♀️ Climate author, teacher, creator 📚 Climate Wayfinding (new!), All We Can Save, Drawdown, etc ✨ Lead @allwecansave.bsky.social 🎙 Co-host, A Matter of Degrees 🍑 ATL
True loves: 🐎🐕🐈⬛🕺🏼🌳🌖⛰️
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
Physics, philosophy, complexity. @jhuartssciences.bsky.social & @sfiscience.bsky.social. Host, #MindscapePodcast. Married to @jenlucpiquant.bsky.social.
Latest books: The Biggest Ideas in the Universe.
https://preposterousuniverse.com/
Energy & Environment at the Center for American Progress and @CAPAction.
Adjunct at Georgetown's McCourt School of Public Policy.
Alumnus of Senator Feinstein, Department of Energy.
Personal account.
Climate take farmer for Bloomberg Opinion
Climate Program Lead at Stripe and Frontier, buying permanent carbon dioxide removal (CDR).
Ocean advocate, community builder, climate scientist. I make sure the ocean interior is healthy so you don't have to.
Former DOE. Trying to decarbonize and stay off the bad bird app.
Covering the fate of Life on Earth for CNN
The Wonder List with Bill Weir is now streaming on Max and LIFE AS WE KNOW IT (CAN BE) is available from your favorite bookseller.
Climate science and policy. Also the occasional photo and random thoughts. Currently serving as Commissioner at He Pou A Rangi, New Zealand Climate Change Commission; former IPCC vice-chair WGIII. Usual disclaimers...
Climate policy scientist, cofounded NewClimate Institute, former professor at Wageningen, IPCC author since 2003. The views shared here are my own.
prof. climate science & policy | Imperial College London | 1.5C/net zero/carbon budget/pathways/justice | IPCC & UNEP lead author | ESABCC member | father
Climate scientist working at NASA/JPL and lover of truth. Arrested for defending Earth. Opinions mine.
San José State University Climate Science🌧🌴-- Climate activist conducting 1,900+ daily trash pickups.🌎🏜 -- He/Him -- Because the future is worth fighting for
📈 Data and climate guy
💼 Solutions Architect at Databricks
🇨🇦 based in Toronto
✍️ maxdk.substack.com
also Arsenal ⚽️ and hip hop 🎧
Junior Professor for Climate Attribution at @meteoleipzig.bsky.social
Research Director, CICERO, Vice-chair IPCC Working Group III
Climate scientist at Concordia in Montreal, co-creator of climateclock.net, Director of sustainabilitydigitalage.org and member of Canada's Net-Zero Advisory Body. Interested in carbon budgets, nature-based solutions, and many other things
Climate science editor for @nature.com, handling submissions on atmospheric science, oceanography, the cryosphere, and hydrology. Podcast archive at https://forecastpod.org/.
Public Policy Professor at RIT, WILL International Chair at Univ. of Lille & Past President of the US Association for Energy Economics. Batteries, renewables, electricity markets, and emissions. Sometimes I bike across the continent.
Researches climate & vaccine misinformation at the University of Melbourne. Founded SkepticalScience.com. Published Cranky Uncle vs. Climate Change. Developed the games Cranky Uncle (crankyuncle.com) and Cranky Uncle Vaccine (crankyunclevaccine.org)
Personal Account. Views my own & RT/Likes do not equal endorsements.
Currently at Employ America and IFP
Director, Climate and Energy at the Breakthrough Institute. 王思維. He/him. Oceanographer turned solution seeker. Ecomodernism is the way. PhD in Earth and Ocean Sciences.
FERC nerd hooked on energy law. Penn Law & CELI alumna. Proud Princeton 🐅. Spare time split between water polo, skiing, and #energysky
Sharing hope and debunking FUD against electric vehicles and renewable energy. Director NEONresearch.nl @TUeindhoven Founder Zenmo.com.
Climate economist. Opinions are my own.
Climate-carbon dynamics from the geologic past to the near future. CDR research scientist @CarbonPlan.org. Views my own.
Mom, mentor, microbial ecologist. Soil biogeochemistry, climate change, CDR, roots-microbes-minerals, stable isotope probing metagenomics, NanoSIMS. Lead of LLNL Carbon Initiative, Roads2Removal.org, Microbes Persist SFA, & Terraforming Soil Earthshot Ctr.
powering growth @scalemicrogrids and DER-pilling the youths @DER_Task_Force
Retired dean of education and teacher. Father, husband, hiker, focused on social justice and climate.
Hugo, Nebula, and Locus Award-winning and USA Today best-selling author, narrator, and professional puppeteer. Also has a talking cat. Latest title: Apprehension.
🇨🇦 troubadour. children's champion. ecology. Raffi Foundation for Child Honouring. beluga grads.
Physicist, airburst specialist, planetary defender, & CSI Fellow. I'm critical of the Younger Dryas impact hypothesis (YDIH) which has strong links to global warming denial, creationism, & pseudoarchaeology. It relies on misinformation & fake peer review.
I am a New Yorker staff writer and author of "H is for Hope," "Under a White Sky," and "The Sixth Extinction," and forthcoming “Life on a Little-Known Planet”, out in November. Learn more at elizabethkolbert.com.
Climate journalist, Carbon Brief. Interested in energy, climate, land, food, politics, rights, critters, culture. Recovering Twitter junkie. “Sekhar” as in “shaker”.📍Mumbai, India. Views, jokes = own.
Climate science correspondent at @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.
Former EIC of Sierra; former editor of Earth Island Journal. Author of the forthcoming book, The Earth Said Remember Me (July '26; Norton). Author of Satellites in the High Country. Lily's Dad. Gardener + Hiker. Posts = ill-considered opinions.
COP is stored in the ovaries
pompe à chaleur. recovering local digital news reporter. rural volunteer firefighter. Gideon the Sixth. your favorite deep state climate bureaucrat’s favorite shitposter
she/her/bro 🔌⚡️
Cohost of @everybodygetspie, a podcast from the team that brought you YIMBYs for Harris
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
Chief Economic Advisor - Climate Change Group - the World Bank - toward Resilient Net Zero Development - personal opinions
Senior scientist at Oslo-based CICERO Center for International Climate Research • 🌍Global Carbon Project • https://robbieandrew.github.io/
Environmental/Climate scientist for 35+ years; NAS Member. Samuel A. Graham Dean, @UMSEAS @UMICH. Tweets my own. Thinking grad school? Join us at @UMSEAS.
NYU Asst. Professor of Environmental Studies. Climate, animals, land use, and food systems. MatthewHayek.com
Climate variability and change | Professor of Climate Science & Director of Climatic Research Unit | UEA | Views expressed here are my own, not UEA's
Professor of Climate Change, King's College London. Climate science, communication, chronic fatigue syndrome and fibromyalgia. 🏳️🌈 🇦🇶 🧊
Climate and carbon cycle modeller. Hadley Centre and U. Bristol, UK.
Research Fellow @ImperialCollege | Lead Author @IPCC AR7, @WCRP HIETPs & @UNEP GEO7 | WP4 Lead @DIAMOND | Guest Scholar @IIASA | Dad
#Climate #Energy #Scenarios
https://sites.google.com/site/akhourdajie/
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
Climate scientist @ CICERO and NMBU, Norway. Communicator and popular science writer. IPCC AR6 WG1 author. Guitar and science fiction nerd.
https://orcid.org/0000-0001-8013-1833
https://cappelendamm.no/_2070-bjorn-h-samset-9788202677398
Climate scientist, University of Exeter & Met Office. Expert Adviser to Adaptation Committee of the Climate Change Committee. Lead author IPCC AR4, AR5, AR6 & AR7. Live music lover, supporter of grassroots venues. Cycles a lot, rock climbs occasionally.
The University of Melbourne & Climate Resource
Nuclear engineer. nuclear: reactors, history, waste, nonproliferation, humor. "Tells uranium's life story". Lives in New Mexico. Formerly UW-Madison & UIUC. Outdoors when I'm not working. Views mine alone, likes/rt not endorsements. she/her
Climate, Investing, NBA, & Rap. SVP, Portfolio Manager - Sustainable Investing. Prev: Head of ESG, HY Credit, Startup (acq.) IB. Own Views. RTs ≠ endorsement.
Principal Engineer Semiconductor Industry and now a DER/Grid Edge worker as well! Opinions own
Managing Director at Radiant Energy Group
I’m an advocate for people and culture, impact investing, and reproductive freedom.
Vice President Energy Markets, Analysis and Standards @aga_naturalgas. Views my own.
carbon removing, community seeking, bird watching
Investment pro here for
• climate science, economics, solutions, policy, investment, impacts
• energy transition
• economics
Big on domain experts/expertise, abundance, potential.
*V* anti- fake experts, poseurs, snark, *esp.* climate-related.
Prof at UC Berkeley. Biomass and carbon removal at Carbon Direct. PhD from Berkeley. Carbon-centric.
Emerging technologies, industrial decarbonisation & hydrogen enjoyer
🇺🇳🇪🇺 #ClimatePolicy since 2004.
#CarbonMarkets #CarbonRemoval #CarbonCapture
*Personal views*
🌐 evetamme.com
Working to help clean up the mess we made in the sky. Occasional memes. View my own
Daccoalition.org
Deputy Editor, Our World in Data
Senior Researcher, University of Oxford
Climate, energy, environment, all things data.
Rapid attribution to uncover the influence of climate change on heatwaves, drought, wildfire, storms and floods.
Human | Climate Scientist | Meteorologist | Stormchaser | Queer
@unileipzig | ex-@ecioxford | @S4F | YIMBY | he/him 🏳️🌈🏳️⚧️🦄 💕
#bekind #diversity #equality #empathy #inclusivity #fightfascism
#WakeTheFuckUp!! #TeamJoyResistance
https://thueringen-weltoffen.de
Minnesota meteorologist and serial entrepreneur, tracking climate-fueled weather extremes. Author: “Caring For Creation” and “A Kid’s Guide to Saving the Planet”
Director, UC Merced Fire Resilience Center. Pyrogeographer. I study wildfire in the era of anthropogenic climate change. Former wildland firefighter. Opinions are my own. *she/her* 🔥🔥🔥
PhD Climate Scientist. Alaska. The Earth is warming because of us. Mooseologist. All opinions are my own. Future FIFA Peace Prize winner. Signal: Climatologist.49
U.S. Representative, IL-06. Personal account. Dad. Husband. Trained as an engineer, 16 years as a clean energy CEO, now in middle management. For official stuff see @casten.house.gov
Always thinking about the future. Currently President of Climate Vision, formerly Schumer enviro guy.
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
