Top 50 Climate Change Activists on Twitter in 2025

Mar 24, 2025⋅Contents
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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 @gretathunbergTwitter Followers 5.3MType Mega Get Email Contact

2. Katharine Hayhoe

Bio Climate Scientist, Prof @TexasTech, Chief Scientist @nature_org. Join me on Bluesky @katharinehayhoe.com. Tweets 100% my own ???Twitter Handle @khayhoeTwitter Followers 228KType 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 @drshepherd2013Twitter Followers 64.8KType 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_hawkinsTwitter Followers 104.5KType Macro 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 @climategeekTwitter Followers 2.3KType 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 @dgebregiorgisTwitter Followers 2.5KType Nano Get Email Contact

7. Prof. Kashwan

Bio Prof @BrandeisU | Environ & Climate Justice | Governance | Political Ecology | Commons | Editor @Env_Pol | Chair @ESS_of_ISA | Web: https://t.co/TJnEPpn8oQTwitter Handle @pkashwanTwitter Followers 9.3KType Nano Get Email Contact

8. Dr. Kim Cobb

Bio 40% Climate Scientist, 40% Mom, and 20% Indiana Jones. Unapologetically obsessed with carbon. Director, https://t.co/WjvCKhqv4E. She/herTwitter Handle @coralsncavesTwitter Followers 28.8KType 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 @jacquelyngillTwitter Followers 103.5KType Macro Get Email Contact

10. James Edward Hansen

Bio Director of Climate Science, Awareness and Solutions at Columbia University's Earth Institute https://t.co/335VZEDX54Formerly Director of NASA GISSTwitter Handle @drjamesehansenTwitter Followers 27.7KType 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 @anttilipTwitter Followers 15.2KType 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 @twilamoonTwitter Followers 4.2KType Nano Get Email Contact

13. Geoff Dembicki

Bio Investigative climate reporter. My latest book THE PETROLEUM PAPERS was named a Washington Post Best Book of 2022. ****@gmail.comTwitter Handle @geoffdembickiTwitter Followers 5.7KType Nano Get Email Contact

14. Peter Kalmus

Bio Climate scientist. Arrested for defending Earth. @ClimateAd, @EarthHeroOrg. Opinions mine. #EmergencyModeTwitter Handle @climatehumanTwitter Followers 338KType 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 @billmckibbenTwitter Followers 397KType Macro Get Email Contact

16. Edgar McGregor

Bio BSc Climate Science @SJSU ? Busy conducting 1,800+ days of #EarthCleanUp? He/Him ? Because the future is worth fighting for. ☀Twitter Handle @edgarrmcgregorTwitter Followers 45.6KType 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 @licypriyakTwitter Followers 211.6KType Macro Get Email Contact

18. Jerome Foster II

Bio Co-Exec Director at Waic Up | Youngest Member of @WhiteHouse Environmental Justice Advisory Council | ****@gmail.comTwitter Handle @jeromefosteriiTwitter Followers 23KType Micro Get Email Contact

19. Jamie Sarai Margolin

Bio ???️‍?✡︎ | director/creator @peleaanimation | @thisiszerohour founder | climate justice organizer | filmmaker | nyu film 2024 | #youthtopower authorTwitter Handle @jamie_margolinTwitter Followers 48.2KType Micro Get Email Contact

20. Leah Namugerwa

Bio 17 YO Climate ActivistTwitter Handle @namugerwaleahTwitter Followers 25.8KType Micro Get Email Contact

21. Oscar Alateras

Bio Young climate activist and passionate writerTwitter Handle @alaterasoscarTwitter Followers 756Type 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 @havenruthieTwitter Followers 11.8KType Micro Get Email Contact

23. Nadia

Bio Artist, Musician, & Climate Justice Organizer ❤️‍? she/her Co-Founder of @ThisIsZeroHour ?Twitter Handle @nadiabaltimoreTwitter Followers 6.8KType 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 @zaynecowieTwitter Followers 8.8KType 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 @naomiakleinTwitter Followers 709.9KType 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. #StubbornOptimistTwitter Handle @cfigueresTwitter Followers 164.9KType 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 @andrealearnedTwitter Followers 16.7KType 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 @rkyte365Twitter Followers 24.5KType Micro Get Email Contact

29. Marissa Rosen

Bio Founder & Principal Consultant: Climate Social. Past @SustainBrands @TriplePundit @Wharton. Alum @Mizzou @Penn. "There are only so many sunrises."Twitter Handle @marissar1Twitter Followers 13.4KType 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 @laurencetubianaTwitter Followers 34.5KType Micro Get Email Contact

31. Jennifer Morgan

Bio State Secretary & Special Envoy for Int. Climate Action @GermanyDiplo | StSin & Sonderbeauftragte für int. Klimapolitik @AuswaertigesAmt | Views are my own.Twitter Handle @climatemorganTwitter Followers 43.3KType Micro Get Email Contact

32. Megan Darby

Bio Editor of award-winning @ClimateHome. Not using this platform much any more. Find me in the pleasant weather app - same handleTwitter Handle @climatemeganTwitter Followers 13.4KType Micro Get Email Contact

33. Megan Rowling

Bio Editor at Climate Home News @ClimateHome. Journalist dedicated to covering climate change, the green transition and inequity in all its many forms.Twitter Handle @meganrowlingTwitter Followers 13.3KType Micro Get Email Contact

34. Camilla Born

Bio Climate diplomat obsessed with delivering on climate commitments, transforming business & shifting finance. Ex @cabinetofficeUK @E3G + chair of @ClimateOutreachTwitter Handle @camillabornTwitter Followers 11.2KType 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 @drkatemarvelTwitter Followers 53.2KType Micro Get Email Contact

36. Claire Poole

Bio Founder @sportpossummit @sportposleagues @clrbrightcomms | #Sport and #climatechange, sustainability | Trustee @ukharvest | #sportpositiveTwitter Handle @claireypooleTwitter Followers 3.8KType 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 @elpinchbeckTwitter Followers 23.2KType 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 @kathykijinerTwitter Followers 8.7KType Nano Get Email Contact

39. Roz Pidcock

Bio Freelance consultant. Climate change writing, editing and strategic engagement. Previously @ClimateOutreach, @IPCC_ch WGI & @CarbonBriefTwitter Handle @rozpidcockTwitter Followers 4.2KType Nano Get Email Contact

40. Gill Hickman

Twitter Handle @lussasTwitter Followers 2.7KType 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 @asmallamountTwitter Followers 4.2KType Nano Get Email Contact

42. Sandrine Dixson

Bio Change agent for #Sustainability #Climate #Innovation #Gender - Co President @ClubOfRome - Co Founder @EUWeCanTwitter Handle @sddecleveTwitter Followers 7.2KType Nano Get Email Contact

43. Emily Farnworth

Bio Director, Centre for Climate Engagement @ClimateHughes. Trustee @Hughes_Hall. Chair of @theRE100 Advisory Committee. Previously @wef @ClimateGroup.Twitter Handle @emilyfarnworthTwitter Followers 2.6KType 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 @drpaulaowenTwitter Followers 1.7KType Nano Get Email Contact

45. Michelle Yonetani

Bio #Displacement #climatechange #disaster #fragility #resilience #DRR #protection #solutions. With UNHCR on #climateaction. Own tweets.Twitter Handle @m_yonetaniTwitter Followers 1.6KType 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 @janvivekanandaTwitter Followers 1.8KType Nano Get Email Contact

47. Nicolette Bartlett

Bio Chief Impact Officer @cdp Views here are my own. Retweets not.Twitter Handle @nikkibartlettTwitter Followers 1.4KType Nano Get Email Contact

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