Top 50 Climate Change Activists on Twitter in 2025

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Climate Change Influencers

Here are Top 50 Climate Change Influencers

1. Greta Thunberg

Bio Autistic climate justice activist Born at 375 ppmTwitter Handle @gretathunberg Twitter Followers 5.3M Type Mega Get Email Contact Full Database Export: 100K X Influencers with email contacts Our Influencers contact datasets help brands launch products, run geotargeted campaigns, boost PR, grow affiliate programs, promote events - enabling faster, smarter marketing outreach. Request Pricing View Sample Email us at anuj@feedspot.com Copy email to request X Influencers bulk export with verified email contacts in an Excel or CSV format.

2. Katharine Hayhoe

Bio Climate Scientist, Prof @TexasTech, Chief Scientist @nature_org. Join me on Bluesky @katharinehayhoe.com. Tweets 100% my own ???Twitter Handle @khayhoe Twitter Followers 228K Type Macro npr.org/podcasts/961315153/g.. + Follow Get Email Contact

3. Dr. Marshall Shepherd

Bio Personal page. 3x FSU Alum, Professor, Scientist, Weather Geeks, Tweets mine. RT not supportive of any position.Twitter Handle @drshepherd2013 Twitter Followers 64.8K Type Micro Get Email Contact

4. Ed Hawkins

Bio Climate scientist, NCAS/University of Reading | IPCC AR6 Lead Author | MBE | Warming Stripes: https://t.co/RHRXsr7zE5 | Views ownTwitter Handle @ed_hawkins Twitter Followers 96.1K Type Micro Get Email Contact

5. Astrid Caldas

Bio Climate Scientist @UCSUSA. Thirsty for knowledge and a broader understanding of all things climate change. Opinions and snarkiness are my own.Twitter Handle @climategeek Twitter Followers 2.1K Type Nano Get Email Contact

6. Daniel Gebregiorgis

Bio Tigrayan | Climate scientist | I write about the monsoon and occasionally other stuff | Stateless since 03-November-2020.Twitter Handle @dgebregiorgis Twitter Followers 2.4K Type Nano Get Email Contact

7. Prof. Kashwan

8. Dr. Kim Cobb

Bio Join us on bsky! Dormant here until further notice. 40% Climate Scientist, 40% Mom, and 20% Indiana Jones. Unapologetically obsessed with carbon. She/herTwitter Handle @coralsncaves Twitter Followers 25.1K Type Micro Get Email Contact

9. Dr. Jacquelyn Gill

Bio Paleoecologist @UMaine trying to be a good ancestor. Climate change, biodiversity, extinction. @MakeAPlanetPod @OurWarmRegards She/her ?️‍?Twitter Handle @jacquelyngill Twitter Followers 103.5K Type Macro Get Email Contact

10. James Edward Hansen

Bio Director of Climate Science, Awareness and Solutions at Columbia U https://t.co/87PLwUvxPu | @drjamesehansen.bsky.social | https://t.co/g2hp4NZF48Twitter Handle @drjamesehansen Twitter Followers 26.5K Type Micro Get Email Contact

11. Antti Lipponen

Bio Physicist, research scientist at Finnish Meteorological Institute (@IlmaTiede). #Satellites, #aerosols, #climate, #remotesensing, #dataviz + #bike/#fatbike ?Twitter Handle @anttilip Twitter Followers 15.2K Type Micro Get Email Contact

12. Twila Moon

Bio Earth's ice, climate (ACTION), #scicomm. Scientist @NSIDC, CIRES, Univ. Colorado Boulder. Find me now at https://t.co/TIdicwDkRQ (she/her)Twitter Handle @twilamoon Twitter Followers 3.7K Type Nano Get Email Contact

13. Geoff Dembicki

Bio Investigative climate reporter with @DeSmog. My book THE PETROLEUM PAPERS was named a best book of the year by The Washington Post.Twitter Handle @geoffdembicki Twitter Followers 5.3K Type Nano Get Email Contact

14. Peter Kalmus

Bio Climate scientist. Arrested for defending Earth. @ClimateAd, @EarthHeroOrg. Opinions mine. #EmergencyModeTwitter Handle @climatehuman Twitter Followers 307.7K Type Macro Get Email Contact

15. Bill McKibben

Bio Author, Educator, Environmentalist and founder of https://t.co/RD1mCHAneQ and https://t.co/58WgUpHwRO. Opinions all my own, and expressed at greater length at https://t.co/va0A985uVlTwitter Handle @billmckibben Twitter Followers 397K Type Macro Get Email Contact

16. Edgar McGregor

Bio BSc Climate Science @SJSU 📈 Busy conducting 2,000+ days of #EarthCleanUp🌳 He/Him 🌎 Because the future is worth fighting for. ☀Twitter Handle @edgarrmcgregor Twitter Followers 45.3K Type Micro Get Email Contact

17. Licypriya Kangujam

Bio Indian Climate Activist | Special Envoy for the President of the Democratic Republic of Timor-Leste🇹🇱 | DiplomatTwitter Handle @licypriyak Twitter Followers 211.6K Type Macro Get Email Contact

18. Jerome Foster II

Bio TIME Next Generation Leader | @AmericanForests Ambassador | Co-founder of https://t.co/uMEE6bUEHO | Youngest @WhiteHouse AdvisorTwitter Handle @jeromefosterii Twitter Followers 20.8K Type Micro Get Email Contact

19. Jamie Sarai Margolin

20. Leah Namugerwa

Bio 17 YO Climate ActivistTwitter Handle @namugerwaleah Twitter Followers 23.4K Type Micro Get Email Contact

21. Oscar Alateras

Bio Young climate activist and passionate writerTwitter Handle @alaterasoscar Twitter Followers 663 Type Nano Get Email Contact

22. Haven Coleman

Bio CLIMATE Activist + Resource Redirector • #GiveAIR Fund • @ARIDagency + US Youth Climate Strike Founder • 15 • ****@ARIDagency.com • 🏳️‍🌈 • She/HerTwitter Handle @havenruthie Twitter Followers 10.6K Type Micro Get Email Contact

23. Nadia

Bio Sculptor, Animator, Musician, & Climate Justice Organizer ❤️‍🔥 she/her Co-Founder of @ThisIsZeroHour 🐛Twitter Handle @nadiabaltimore Twitter Followers 6.1K Type Nano Get Email Contact

24. Zayne & Panda

Bio 13 yo ADHD/aspie kid & panda #climatestrike (NYCity Hall from 12/7/18) now talking solutions, she/herhttps://t.co/35ky1DzINe(acct mgd by mom)Twitter Handle @zaynecowie Twitter Followers 7.8K Type Nano Get Email Contact

25. Naomi Klein

Bio Doppelganger. This Changes Everything. The Shock Doctrine. No Logo. On Fire. @UBC Professor of Climate Justice, co-director @CCJ_UBCTwitter Handle @naomiaklein Twitter Followers 656.8K Type Macro Get Email Contact

26. Christiana Figueres

Bio @OutrageOptimism co-host. Global Climate Leader. Mother. Dedicated to the protection and regeneration of our web of life. **This account is no longer active**Twitter Handle @cfigueres Twitter Followers 156.1K Type Macro Get Email Contact

27. Andrea Learned

Bio #ClimateInfluence media & impact #partnerships | Host, Award-winning #LivingChange #podcast | #cities #transportation #food | NYC Plant-Powered Carbon ChallengeTwitter Handle @andrealearned Twitter Followers 16.7K Type Micro Get Email Contact

28. Rachel Kyte

Bio UK Special Representative on Climate. Professor of Practice in Climate Policy @BlavatnikSchool. Snr Ind Director @PIDGorg. Advisor QCF.Twitter Handle @rkyte365 Twitter Followers 24.5K Type Micro Get Email Contact

29. Marissa Rosen

Twitter Handle @marissar1 Twitter Followers 12.6K Type Micro Get Email Contact

30. Laurence Tubiana

Bio Economiste, professeure, diplomate. Accord de Paris & Convention citoyenne. A la tête de la Fondation Européenne pour le climat. Opinions personnelles.Twitter Handle @laurencetubiana Twitter Followers 34.5K Type Micro Get Email Contact

31. Jennifer Morgan

Bio #ClimateAction activist, expert, diplomat | Former State Secretary & Special Envoy for Int Climate Action @GermanyDiplo | Former Executive Director @GreenpeaceTwitter Handle @climatemorgan Twitter Followers 40.1K Type Micro Get Email Contact

32. Megan Darby

Bio I am no longer active on this site. You can find me on BlueSky @climatemegan.bsky.socialTwitter Handle @climatemegan Twitter Followers 12.2K Type Micro Get Email Contact

33. Megan Rowling

Bio Editor @ClimateHome. No longer posting on X due to the far-right views of its owner. Find me: https://t.co/Xv5UQwQfNrTwitter Handle @meganrowling Twitter Followers 12.7K Type Micro Get Email Contact

34. Camilla Born

Bio CEO Electrify Britain obsessed with making Britain's energy cheaper, cleaner and more competitive. Ex @cabinetofficeUK @E3G @ClimateOutreachTwitter Handle @camillaborn Twitter Followers 10.4K Type Micro Get Email Contact

35. Kate Marvel

Bio Climate scientist @NASAGISS, soon @projectdrawdown. Writing HUMAN NATURE @eccobooks. Chapter lead, #NCA5. Let's fix stuff.Twitter Handle @drkatemarvel Twitter Followers 46K Type Micro Get Email Contact

36. Claire Poole

Bio Founder @sportpossummit @sportposleagues @clrbrightcomms | #Sport and #climatechange, sustainability | Trustee @ukharvest | #sportpositiveTwitter Handle @claireypoole Twitter Followers 3.8K Type Nano Get Email Contact

37. Emma Pinchbeck

Bio CEO @EnergyUKcomms & Board @UK100_ @Eurelectric. Fellow of the Energy Institute. Expert in climate & energy; novice mum of 2. Times & Politico Green InfluencerTwitter Handle @elpinchbeck Twitter Followers 23.2K Type Micro Get Email Contact

38. Kathy Jetn̄il-Kijiner

Bio Poet. Climate Envoy for the Marshall Islands. Director of nonprofit Jo-Jikum: https://t.co/Io4j47qrNu. PhD student at Australia National University. She/HerTwitter Handle @kathykijiner Twitter Followers 8.7K Type Nano Get Email Contact

39. Roz Pidcock

Bio Freelance consultant. Climate change writing, editing and strategic engagement. Previously @ClimateOutreach, @IPCC_ch WGI & @CarbonBriefTwitter Handle @rozpidcock Twitter Followers 3.7K Type Nano Get Email Contact

40. Gill Hickman

Twitter Handle @lussas Twitter Followers 2.6K Type Nano Get Email Contact

41. Amy Mount

Bio Environmental policy/politics 🦋 Host of Political Heat podcast, making sense of climate politics 🌍 Writing at https://t.co/n6xFzvQ7tK ✍️Twitter Handle @asmallamount Twitter Followers 3.7K Type Nano Get Email Contact

42. Sandrine Dixson

Bio Change agent for #Sustainability #Climate #Innovation #Gender - Co President @ClubOfRome - Co Founder @EUWeCanTwitter Handle @sddecleve Twitter Followers 6.6K Type Nano Get Email Contact

43. Emily Farnworth

Twitter Handle @emilyfarnworth Twitter Followers 1 Type Nano Get Email Contact

44. Paula Owen

Bio Eco-campaigner, judge, writer, Climate Sci PhD, CEO: @greengumptionuk & @ecoactiongames Author of historical fiction @L1ttleBrownDog ✍️ Tw alter ego @PaulaSOwenTwitter Handle @drpaulaowen Twitter Followers 1.6K Type Nano Get Email Contact

45. Michelle Yonetani

Bio #Displacement #resilience #humanitarian #climateaction #disaster #fragility #protection #solutions With UNHCR. RT= 👀Twitter Handle @m_yonetani Twitter Followers 1.6K Type Nano Get Email Contact

46. Janani Vivekananda

Bio Head of Prog: Climate Diplo & Security @adelphi_berlin • UNU Non-Resident Fellow • Ex-Head Climate & Security @intalert • Brexile in Berlin • all views my ownTwitter Handle @janvivekananda Twitter Followers 1.6K Type Nano Get Email Contact

47. Nicolette Bartlett

Bio Chief Impact Officer @cdp Views here are my own. Retweets not.Twitter Handle @nikkibartlett Twitter Followers 1.3K Type Nano Get Email Contact

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