Costa Samaras @costasamaras.com Climate, energy, emerging tech, resilience, & policy professor. Carnegie Mellon Univ. Institute for Energy Innovation Director. Former Biden-Harris White House OSTP Chief Advisor for the Clean Energy Transition. Personal account. He/Him. costasamaras.com
John Paul Helveston @jhelvy.bsky.social Systems Eng Prof @ GWU ๐ฆ | Director, Data Analytics MS Program | EVs ๐๐ | Low Carbon Tech | Choice Modeling | Survey Research | China | US-China Policy | #rstats | #reproducibility | #opensource | Father | opinions own 
Dr. Sharon Homer-Drummond @shomerdrummond.bsky.social AAAS Honorary Fellow & STP Alumn; Sci pol & diplomacy, ed & com; EJ & SJ; wildlife endocrinology & physio.; marine mammal biol.; environmental tox & disruption; systems change; conservation standards. Posts solely reflect my own opinions. she/her/hers
Peter Forman @pjforman.bsky.social Assistant Professor in Human Geography at Northumbria University (UK). Researches energy transitions, security and infrastructural politics. Specialises in natural gas and hydrogen. He/Him
https://www.northumbria.ac.uk/about-us/our-staff/f/peter-forman/
Pooja Shah @poojashah.bsky.social Introvert. Nerd. Energy systems engineer. Tweets climate, renewables, energy storage, grid infrastructure, transportation, climate equity & social justice Alum:@SyracuseU @CC_CNY @energy_leaders
Dan Kammen @dankammen.bsky.social Husband & father of two amazing daughters, former Obama and Biden Administration(s) energy, climate and justice team member. Decarbonization and climate justice. Pilot. Astrophotographer. Very concerned US resident. Professor: http://rael.berkeley.edu
Yann le Polain @yannlepolain.bsky.social Associate Prof. of Geography & Development Studies at McGill University. I work on land use and livelihoods in agricultural frontiers, particularly in the Gran Chaco region. Interested in land, environment, and development. He/him. Web: lendevlab.com
Dr Paul Dorfman @drpauldorfman.bsky.social Bennett Scholar, Bennett Inst. Sussex University; Chair, Nuclear Consulting Group; Member, Irish Govt. Radiation Protection Advisory Committee; served as Secretary to UK Govt. scientific advisory Committee Examining Radiation Risks from Internal Emitters. 
Earth Civics @earthcivics.org We work to develop new opportunities for climate-related civic engagement, from local to national, to international, policy processes. You are a climate stakeholder. https://earthcivics.org/
Monica Maalouf, MD @maaloufmd.bsky.social Internist, Writer, Mother | Associate Prof of Medicine | Advocate for patients and health equity #MedicareForAll is the way
doctoredtales.com
Rep. Andy Smith @andysmithmn.bsky.social MN State Representative serving Rochester, MN (25B)
I also love ๐ฅ ๐ ๐ฅพ โ๏ธ โฝ ๐ ๐ โ๏ธ ๐๏ธ ๐
linktr.ee/andysmith
Sarah Rotz @sarahrotz.bsky.social Professor, EUC, York University; political ecologist; land & food studies; anti-colonial scholar/activist. she/her. settler. feminist. #foodjustice #climatejustice. 
Franklyn Kanyako @fkanyako.bsky.social Research Specialist, @UMich. Former @IRENA Scholar. Energy systems modeling, clean energy transition, and decision analysis.
Molly Below @lilmissmolly.bsky.social Bostonian, BPS parent. Bike lane, public transit, social safety net and health equity enthusiast. Public health professional. Past health policy fellow for Ed Markey 2025-2026. She/her. ๐ณ๏ธโโง๏ธ Views posted are my own.
Kimberly Yazzie, PhD @kimberlyazzie.bsky.social Ecology and climate solutions | Assistant Professor @forestry.UBC.ca #UBCForestry Faculty of Forestry & Environmental Stewardship | Postdoc @ Stanford University | PhD @ University of Washington | Dinรฉ :: | @NASEMFordFellow | she/her | Personal account
Laura Castro-Diaz @lauracastrodiaz.bsky.social Assistant Professor, School for the Environment, UMass Boston
Energy+Water Justice. Sustainability. Community-Based Research.
Colombian & Coffee lover
She/Her/Ella
https://lauracastrodiaz.com/
Jest @jestlove.bsky.social ๐คก for love interested in: public health, environmental justice, clean energy, UX design, disco
David Andersen @daveandersen.bsky.social Computer Science Professor, CMU;
co-founder and CTO, Enriched Ag
Energy-efficient computing, a dash of security, and a pinch of databases.
Also on Mastodon (https://hachyderm.io/@dave_andersen )
signal: dga.48
he/him
Anya Schoolman @aschoolman.bsky.social Executive Director Solar United Neighbors. Working to make solar affordable and accessible to all. 
Robert Zaichkowski @rzaichkowski.bsky.social Accountant, Road Safety Advocate, Bike Blogger & Campaign Lead of Open Streets Toronto. Bilingual EN/FR. #BikeTO #BikeSky #TOpoli #VisionZero ๐ฒ
Blog = www.twowheeledpolitics.ca
Open Streets Petition = tinyurl.com/OpenStreetsPetitionTO
Andy Revkin ๐ โ๐ผ ๐ช โฎ๏ธ revkin.substack.com @revkin.bsky.social 40 years of prize-winning sustainability journalism, mostly @nytimes, #sustainwhat webcaster https://revkin.substack.com, #Anthropocene Working Group member, solution seeker, songwriter https://j.mp/revkinlinks
Jeremy Michalek @jmichalek.bsky.social Professor at Carnegie Mellon in Engineering & Public Policy, Mechanical Engineering and Civil & Environmental Engineering.
Director of the Vehicle Electrification Group.
#EVs ๐๐, #EnergySky ๐๐ก, #GreenSky
Suggsy @suggsy.bsky.social Pro-democracy | Human rights & Planet advocate | American causing good trouble while living in the UK
Sam Lambert @momof4lambs.bsky.social Environment/Education/Growing Food advocate.
Former Everett School Committee member.
Political and Municipal Organizer at Mass Sierra Club.
Perpetual thorn in some sides.
Opinions are my own
Stories Sustain Us @storiessustainus.bsky.social Stories Sustain Us is a podcast dedicated to exploring and sharing the remarkable narratives of individuals who have devoted themselves to making a positive impact on our world. 
Marcel @marcelakhame.bsky.social Clean energy, photography and Liverpool Football Club // Nigerian-Texan
Adam Johnston: Elmwood Fietser @adamjwpg.bsky.social Red River #Metis #Winnipeg #ActiveTransportation, #PublicTransportation advocate. Host of @nntaonumfm.bsky.social on UMFM. Taking Advanced Environmental Management at @uoftscs.bsky.social in May, 2026 (I'm a live person, not a goose!)
awoe (ah-way) @awoenam.com he/him/his | urban environmentalist working to decarbonize buildings in california ๐๐ณ๐ก | los angeles based arsenal fan โฝ | views are my own
find my links here๐๐พ
https://linktr.ee/awoenam
Litahart72๐๐ณ๏ธโ๐โ๏ธ๐ซถ๐ผ๐
๐ @litahart72.bsky.social Resistance! Tenacity! determination๐Nonnie with a passion for life, nature and the environment. ๐ฅclimate change is real and we ignore it at our peril.๐ซถ๐ผ๐๐๐ณ๏ธโ๐๐ฆ relentless solidarity love and compassion! ๐ซ dmโs ๐ซ maga #aphantasia
Kristine โ๐ @extrasuperkk.bsky.social Native plant nerd. Recovering soil scientist. Compost freak. Beginning birder. CoCoRaHS observer. Community, equity, climate. Great Plains bordering on Southern Rockies. Concerned about authoritarianism. At least a little bit queer & neurodivergent. IYKYK.
Lucas Johnson @lujomusic.bsky.social clean energy finance by day, chasing a toddler by night, music around the edges, NYC based
Jacob Quinn Shenker @jqs.xyz climate/industrial policy. former biophysicist. he/him.
rhammer @rhammersley.bsky.social energy/land-use/enviro attorney, ecologist, activist & political junkie, angler/hunter, cyclist/triathlete, music lover, futbol (Arsenal) & Michigan sports fan; live in Traverse City. (he/him)
Jigar Shah @jigarshahdc.bsky.social husband, dad, focused on elevating American entrepreneurs and innovators to achieve energy abundance by deploying at scale. It's simple, not easy. https://www.linkedin.com/in/jigarshahdc/
David Ray @austexdav.bsky.social Trying to live my best life with my wonderful husband and fur babies. WTF USA?!?! It is time to resist every day! I will not comply with the ๐Dictator. ๐ซMAGAts
Christopher Mims @mims.bsky.social Former baby and aspiring ghost. Writes about tech for WSJ. Author of two books, both of which people seem to like and are worth looking up.
Florian Lichtin @flolichtin.bsky.social PhD Candidate @IPEEP_eth & @istp_eth
| studying Mobility & Climate change politics
https://ib.ethz.ch/people/lichtin.html
Kate Hoerster @katehoerster.bsky.social Day: PTSD treatment & recovery. Night: climate, transportation, & public health advocacy. 24 hours: a more just world for my kids & yours. She/her. Views my own.
Destenie Nock, PhD @destenie.bsky.social Professor at Carnegie Mellon University. Energy Affordability. Energy & Climate Justice. Macro Energy Systems Modeling. CEO - Peoples Energy Analytics. Named a 2024 Science Defender. Nonfiction rep: @laurieabkemeier. Fiction rep: @ajvanbelle
trav the department head @travmatic.bsky.social ๐ฏ๐ฒ | ฮฮฆฮ | @cmu.edu tartan @CMU_EPP with a splash of super saiyan |๐คต๐พof @ivyst13.bsky.social | nuke nerd | likes, tweets, and RTs do not equal endorsements
Bluesky @bsky.app official Bluesky account (check username๐)
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