Katharine Hayhoe
climate scientist
posts 100% my own
🇨🇦 is my home
distinguished professor & chair, Texas Tech
chief scientist, The Nature Conservancy
board member, Smithsonian NMNH
alum, UToronto and UIUC
author, Saving Us
Starter Packs
Created by Katharine Hayhoe (24)
US National Nature Assessment Authors
These authors are determined to finish their groundbreaking report, with or without government support. Follow along to see how they’re making it happen.
Canada News Sources
For better picture of what's going on north of the border, many of our official outlets are joining us here on Bluesky. Please follow any of interest!
Climate Justice
These experts, advocates and activists understand that, while climate change affects us all, it doesn't affect us all equally. Those who've done the least to cause the crisis are most impacted - and that's not fair.
Climate + Comedy
A list of comedians who tackle the climate crisis with the knowledge that sometimes we have to laugh if we don't want to cry--and that making people laugh often helps them listen, too!
Climate + Finance
People and organizations who are funding a livable future on a round, finite planet
Climate Health
This is a list of professionals who study, work, or write at the intersection of climate, pollution, and health-related issues, from extreme heat to infectious diseases. For mental health, see my climate psychology pack.
Climate Activist Organizations
Joining a climate action group is one of the most impactful ways we as individuals can catalyze climate action. These organizations amplify voices, drive systemic change, and offer collective strength. Find one that matches your passion and make your voice count!
Katharine's Favourite Climate Activists
These inspiring activists are leading the charge for a better future and their work is a powerful reminder that individual action can spark global change. As JFK said, "one person can make a difference, and everyone should try."
Texas Sized Climate Advocates
Meet the climate crew of the Lone Star State. From scientists to reporters to activists to energy experts, these folks are tackling climate change with a Texas-sized dose of determination -- come storm, flood, heat or haboob!
Climate + Sports
Because climate action starts from the heart-- and for many, the way to their heart is through sports! Team sports, water sports, snow sports and individual sports: we're all impacted by rising temps, and we can all do something about it.
Climate Research Centres, Depts and Orgs Part 2
This is my second list of the research centers, groups, labs and departments that bring together scientists, researchers, and communicators to get it done on climate. These folks joined the Bluesky party a little late - but are still very welcome 🤗 Did I miss one? Let me know!
Climate Psychology
Exploring the intersection of mental health, public opinion, behavioural science, collective action and the climate crisis, these experts address anxiety, grief, and psychological barriers to climate action.
Climate Katharines
Katharinas, Kates, Kathryns, Katjas and all the creative variations that stray from the original Greek (but keep their climate focus) are warmly welcomed in this utterly biased starter pack, curated purely for my own enjoyment.
Climate Educators
Formal or informal, this pack includes educators researching or full-time educating about climate. K-12 climate education is a key tipping point to accelerate climate action, making this work incredibly important! Did I miss you? Tag me with a description of your work!
Faith and Climate
What is climate action, other than loving your global neighbour as yourself? For all of us in this pack, our faith informs our values and our advocacy for climate action.
Katharine's Canadian Climate Scientists
This starter pack highlights researchers from across the Great White North who are tackling the climate crisis with expertise, innovation, and a uniquely Canadian perspective—since when it comes to climate, we’re all connected. 🍁
Texas Tech-ians
The university's motto is "from here it's possible" and I think that's very apt, given the global reach of my colleagues and our students!
Climate Research Centers, Depts and Orgs
This is a list of the research centers, groups, labs and departments that bring together scientists, researchers, and communicators to get it done on climate. And who are smart enough to have a Bluesky account :) Did I miss one? Let me know!
Nature Based Solution-ists
When it comes to equitably tackling the pollution, biodiversity, and climate crisis, nature always brings more to the table than we expect!
The Nature Conservancy
Meet the scientists and conservation experts of The Nature Conservancy (TNC) working in 80+ countries to address the biodiversity and climate crises. As the unofficial chief Bluesky ambassador there, I'm working on making this pack grow!
Climate Policy, Strategy, and Justice Experts
Because we can have all the science in the world, but if we don't know what to do with it, and how to make the world a better place, why does it matter?
Communication Experts Katharine Recommends
Effective communication on polarized topics like climate change is a SCIENCE - and these are the folks I listen to on this.
Climate Writers + Journalists Katharine Recommends
Here is a list of some of my favourite climate writers, journalists, and artists to get you started with a feed full of information and inspiration. For more, check out David Ho's two starter packs of climate journalists and subscribe to the 3 feeds I include in this pack.
Climate Scientists Katharine Knows
An entirely biased list of the climate scientists I personally look to for info and insights, most of whom I know IRL and many of whom I've collaborated with. For more, please subscribe to the full climate science, impacts + solutions feed with >4,300 scientists.
@dannyszydlowski.bsky.social
Freshwater and Marine Sciences PhD candidate at UW-Madison’s Center for Limnology in the Wilkinson lab. Limnology, invasive species, heatwaves, and storms ⛈️ 💧 ☀️ 🐟 🛶 (he/him) dannyszydlowski.weebly.com
@socwithsci.bsky.social
The podcast that explores the surprising secrets of curious people. Hosted by Rachael Moeller Gorman. https://www.buzzsprout.com/2464891 https://socializingwithscientists.com/
@digitaluom.bsky.social
Highly interdisciplinary University of Manchester network of over 2000+ researchers across 30 disciplines and the whole range of digital research. https://www.digitalfutures.manchester.ac.uk/ Subscribe to newsletter: https://tinyurl.com/digitalfuturesuom
@magie-aiken.bsky.social
Postdoctoral researcher at the Swedish Museum of Natural History Biomolecular Archaeology | Historical Ecology |Marine Mammals 🐳 (she/her)
@benediks.bsky.social
Scientist in training, learning what higher sea levels do to coastlines. they/he
@goldmanprize.bsky.social
The world's foremost award honoring grassroots environmental activists. 🌎🏆
@climatechris.bsky.social
Meteorologist and Senior Climate Scientist I received a death threat from a MAGA supporter because I talked about climate change on-air.
@chess-of-forest.bsky.social
Forest hag energy. Permaculture plots & radical thoughts. Raging leftist with dirt under their nails. #Cascadia
@ecodesigncollectiv.bsky.social
The Ecological Design Collective is a non-profit project founded by researchers and community organizations in Baltimore and a growing community around the world. A collaborative initiative focused on addressing ecological crises through design
@cat-abreu.bsky.social
Climate action is my love language 💚 | Director, International Climate Politics Hub | Canada’s Walk of Fame 2023 National Hero | Advisor, Canada’s Net Zero Advisory Body | Board member & keynote deliverer
@1000pede.bsky.social
Soil ecology, earthworms, millipedes, teaching, community science. Asso Prof Georgia College. He/him. Opinions mine. Society's a platypus.
@mervsingh.bsky.social
Postdoc in the Developmental Neuroimaging and Bray Neuroimaging Labs at @UCalgary 🇨🇦 | BRAIIINNNSSS 🧠 | White matter | diffusion MRI | Executive functions | Response inhibition ResearchGate: https://www.researchgate.net/profile/Mervyn-Singh-2
@strikart.bsky.social
Biologist interested in nature, climate and animal welfare etc. because I can't help it and because it's necessary 🌎💚
@lucindapalmer.bsky.social
PhD Student in Climate Science at the University of St Andrews ☁️☀️
@ppsystems.bsky.social
Leader in high-level research instruments for #ClimateChange #Photosynthesis #SoilRespiration #ChlorophyllFluorescence #CO2_H2OGasAnalysis #LeafGasExchange #RapidACi
@exploreice.bsky.social
Glaciologist and Geophysicist, Professor at Oregon State University Curious about ice, landscapes, climate, and the world around me Always seeking creative ways to weave art, science, observation, and ideas together.
@rachitdubey.bsky.social
Assistant Professor at UCLA | Alum @MIT @Princeton @UC Berkeley | AI+Cognitive Science+Climate Policy | https://ucla-cocopol.github.io/
@sashaetkind.bsky.social
Professor of CEU in Vienna. A historian who teaches IR and the Anthropocene, but mostly thinks and comments about the current war. I ban, with or without warning
@sandrasavio.bsky.social
MSc Geology student | Phytoliths & paleoecology | Passionate about micropaleontology & science outreach
@maisiebrett.bsky.social
PhD researching honey bee - wild pollinator competition @bristolbiosci Memmott lab. Plant-pollinator interactions, networks, community ecology. Working in South Africa and Scotland.
@unitedchurch.bsky.social
We seek to embody: "No matter who you are or where you are on life's journey, you're welcome here." #JustWorldForAll ✝️
@irian26.bsky.social
PhD International Relations. Peace and Conflict, Diplomacy and post war situation. Researched on: (1) prospects of Peace in Afghanistan (2) Evaluation of Recognition of the Taliban government.
@cdellamore.bsky.social
Science journalist and editor, bug lover, world traveler. Co-founder of Newsbrief Award. Author of South Pole (Assouline, 2012). Deputy EiC at Chemical & Engineering News
@davidzaff.bsky.social
Meteorologist. I like snow, all kinds. Except blizzards. I don’t like blizzards. #nywx
@douglasofsweden.bsky.social
Air quality & Climate researcher. Know-2-much-2-sleep-well. Green socialist, democrat & feminist. Anti/-fascist/-rasist/-communist/-neoliberal. Husband & father.
@spgatucsf.bsky.social
Scientists with a flair for policy. Views are our own & not those of UCSF. spgatucsf.org
@sapphic-science.bsky.social
PhD at Illinois | Materials in Extreme Environments + Nuclear Policy 🏳️🌈🏳️⚧️ they/she Opinions are my own.
@kplopes.bsky.social
Scientist! Systems Analyst and Computational Biologist, PhD. https://katiaplopes.github.io/
@athenamediaie.bsky.social
Climate Solutions Storyteller : people, places and species AthenaMedia.ie /MSc, Climate Change Artist/writer-in-residence 2025, Data Stories, Maynooth research: housing & climate-just city #Ireland #TransAlly
@balazskocsis.eu
🇭🇺/🇰🇿| CS & ECON | Climate Econometrics, Machine Learning, Game Theory, Poker |"When the facts change, I change my mind." 🦧 #EFA25 @au.dk & @aalto.fi balazskocsis.eu
@marcairhart-ut.bsky.social
Science communicator and podcaster at the University of Texas at Austin's College of Natural Sciences. Views are my own, not those of the university.
@gopikasuresh.bsky.social
Ocean and Climate Scientist| Mom | Currently exploring mechanisms behind Indian Ocean warming in Climate models | CSIR-National Institute of Oceanography | Exploring potential Post-Doctoral opportunities and collaborations
@bfrist.bsky.social
Businessman, conservationist, heart transplant surgeon, and former Majority Leader of the U.S. Senate. Board Chair of the Global Board of The Nature Conservancy.
@caraotametalera.bsky.social
Investigadora en el IEO Ciencias marinas 🌊 Tiburones 🦈 Atunes 🐟 Pesquerías ⛴️
@bakaplin.bsky.social
Tropical Forest dynamics, Primate ecology, biodiversity conservation, ecosystem restoration, biodiversity information systems
@conniedotcho.bsky.social
Climate justice movement lawyer @apen4ej.bsky.social • rescue dog mama • Midwest expat in California • views/chaos my own 🌈
@fergus-sinclair.bsky.social
Professor Emeritus, School of Environmental and Natural Sciences, Bangor University, UK Co-convenor, Transformative Partnership Programme on Agroecology, Nairobi Honorary Professor, Centre for Agricultural Research and Higher Education (CATIE), Costa Rica
@johnwhitewildlife.bsky.social
I’m a wildlife ecologist at Deakin University Australia. Long-term small mammal, fire and climate research in Gariwerd (Grampians). Rodenticide impacts in wildlife. Urban ecology. Powerful owls. Native gardener :)
@agnes-river.bsky.social
https://agnes-riviere.github.io Earth researcher: critical zone, hydrology, hydrogeophysics, geothermal and water uses modeling, global changes https://agnes-riviere.github.io/GWSBound
@cazzielum.bsky.social
Lawyer & music business professional. Yorkshire born, Switzerland based. Music Declares Emergency Switzerland. Waste nothing, restore Nature.
@drnereide.bsky.social
Physicist interested in Astrophysics and Particle Physics| Research in Math and Science Edu| Math and Science Writer| Teacher and Teacher Trainer| WomenInSTEM My science blog: https://www.tutto-scienze.org/ More about me: https://x.com/settings/bio
@mccanner.bsky.social
Weather at The New York Times. Now in SF after four years in London. Brooklyn before that. Find me: https://instagram.com/mccannercat
@jeannetteh.bsky.social
University professor and lurker. Views my own, not my employer's. Sometimes I post stuff I don't agree with because I think people should know about it.
@hanslunshof.bsky.social
Fmr. UNHCR Representative. Active in the areas of Human Rights, Humanitarian Affairs, Refugees and Migration. PhD in Constitutional and Administrative Law. Consultancies. Experience works.
@kenjennings.bsky.social
Your Jeopardy! pal. Author of 100 PLACES TO SEE AFTER YOU DIE (bit.ly/3kLgJKO) and a bunch of other stuff. OMNIBUS co-founder (patreon.com/omnibusproject).
@sciencejim.bsky.social
Executive Director, Science Media Centre of Canada. Former Exec Producer, CBC Quirks & Quarks, Ryerson University (now TMU) journalism instructor. Award-winning science journalist and SciComm trainer. http://sciencemediacentre.ca/
@jwestrope.bsky.social
Focused on sustainability, transit oriented urban development, green buildings, renewable energy, energy efficiency, green roofs and a healthier planet.