Katharine Hayhoe

@katharinehayhoe.com

140K followers 15K following 8.9K posts

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

Videos

Katharine Anne Scott Hayhoe is a Canadian atmospheric scientist. She is a Paul Whitfield Horn Distinguished Professor and an Endowed Chair in Public Policy and Public Law at the Texas Tech University Department of Political Science. In 2021, Hayhoe joined the Nature Conservancy as Chief Scientist. .. more

Environmental science 57%

Geography 18%

Posts Replies Media Videos

Pinned

Katharine Hayhoe @katharinehayhoe.com · Jan 9

I’m a scientist who studies how climate change impacts our lives and the places we love.

Most of us are worried, but many feel stuck on what to do. If that's the way you feel, check out this list below!

We can’t fix it alone, but I know we can together. 💚

A list of the most effective ways an individual can catalyze change at the scale we need to effectively tackle climate change, based on social science.

Katharine Hayhoe @katharinehayhoe.com · 1h

And if you prefer, you can also subscribe on Substack. Same videos, same content, just a different platform and format:

Talking Climate | Katharine Hayhoe | Substack

Subscribe to Katharine's newsletter for a clear-eyed and hopeful look at climate science and solutions. Receive weekly climate updates, good climate news, event information, ideas on things to do and ...

www.talkingclimate.ca

Katharine Hayhoe @katharinehayhoe.com · 1h

To watch the full video (and my new Hot Takes/Cold Facts series, where I respond to troll comments!), please subscribe on Patreon. Your support doesn’t buy me a coffee: it directly sustains my small comms team now that climate-hushing has tanked my honoraria. Every subscription truly matters!

Talking Climate with Katharine Hayhoe | Patreon

Explaining and depolarizing climate change

www.patreon.com

Katharine Hayhoe @katharinehayhoe.com · 1h

Pulling climate data offline, canceling research grants, and de-funding scientific institutions doesn't just suppress climate information. It weakens the foundation we rely on to make good decisions of any kind.

In my latest "Tea with Katharine" I share why investment in science is so important!

Katharine Hayhoe @katharinehayhoe.com · 2h

😳

Reposted by Katharine Hayhoe, Mary Jane Curry

The Guardian @theguardian.com · 2h

Greenwashing, illegality and false claims: 13 climate litigation wins in 2025

Legal action has brought important decisions, from the scrapping of fossil fuel plants to revised climate plans

www.theguardian.com

Katharine Hayhoe @katharinehayhoe.com · 20h

Public comment is very standard and is a positive indication that government process processes are working as they should be.

Katharine Hayhoe @katharinehayhoe.com · 20h

👏👏👏

Katharine Hayhoe @katharinehayhoe.com · 1d

I also have this pack ⬇️

Katharine Hayhoe @katharinehayhoe.com · 1d

we are right here! 🇨🇦🍁🦫🇨🇦

go.bsky.app/GcVKfkc

Katharine Hayhoe @katharinehayhoe.com · 2d

bsky.app/profile/kath...

Katharine Hayhoe @katharinehayhoe.com · 9d

Day 9 of my 20 days of climate starter packs features professionals who study, work, or write at the intersection of climate, pollution, and health-related issues, from extreme heat to infectious diseases. (not mental health, that's another pack - coming tomorrow)

See below for previous days!

Katharine Hayhoe @katharinehayhoe.com · 2d

Day 10 of my "20 days of Climate Starter Packs" features experts at the intersection of mental health, public opinion, behavioural science, collective action and the climate crisis who help us address anxiety, grief, and psychological barriers to action. So vital!

See below for the previous days.

Reposted by Mark Lubell, Julie L. Lockwood, Dawn J. Wright , and 6 more Mark Lubell, Julie L. Lockwood, Dawn J. Wright, Robert C. Richards, Stacy D. VanDeveer, J. Warner, Tim Stephens, Seth M. Munson, Drew Peltier

Katharine Hayhoe @katharinehayhoe.com · 2d

You probably heard the US admin is threatening to break up the National Center for Atmospheric Research: but did you know they already froze funding for the 9 regional Climate Science Adaptation Centers? From tracking invasives to helping tribes with drought, here's why the CASCs matter ⬇️

From invasive species tracking to water security – what’s lost with federal funding cuts at US Climate Adaptation Science Centers

The people who manage America’s aquifers, wetlands, shorelines and recreation areas rely on federal science as they face new and rising risks in a changing climate.

theconversation.com

Reposted by Katharine Hayhoe, John Hogan, James Connelly

Dana R. Fisher (aka the Apocalyptic Optimist) @fisherdanar.bsky.social · 2d

A good review of what to expect in our warming world as climate shocks are more frequent and severe. 2025 was only the beginning.

www.theguardian.com/environment/...

Heat, drought and fire: how extreme weather pushed nature to its limits in 2025

National Trust says these are ‘alarm signals we cannot ignore’ as climate breakdown puts pressure on wildlife

www.theguardian.com

Reposted by Katharine Hayhoe, David N. Thomas, Carly D. Ziter

Joanna Mendelssohn @oldlillipilli.bsky.social · 2d

Such sad news. She was a brilliant scientist, a great science communicator and a real enthusiast for what universities can achieve #EmmaJohnston

www.abc.net.au/news/2025-12...

University of Melbourne vice-chancellor dies, aged 52

University of Melbourne vice-chancellor Emma Johnston has died from complications associated with cancer, aged 52.

www.abc.net.au

Katharine Hayhoe @katharinehayhoe.com · 3d

I love the story because it is absolutely peak engineer, 10/10 no notes.

But it is also so ironic and sad that the measurements they take are literally changing on some peaks due to climate change melting the ice caps – and thankfully, that is clearly pointed out in this article!

Alec Luhn @alecluhn.com · 3d

Great lede from @sarahscoles.bsky.social:
"In 2020, Eric Gilbertson, a mechanical engineering professor at Seattle University, climbed the 100 highest mountains in Colorado. Or so he thought." www.nytimes.com/2025/12/28/s...

Twins’ Peaks: The Gilbertson Brothers Want to Rewrite Your Country’s Map

www.nytimes.com

Reposted by Katharine Hayhoe

Alec Luhn @alecluhn.com · 3d

Twins’ Peaks: The Gilbertson Brothers Want to Rewrite Your Country’s Map

www.nytimes.com

Katharine Hayhoe @katharinehayhoe.com · 3d

Plz! 🙏😂

Katharine Hayhoe @katharinehayhoe.com · 3d

I know, I really couldn’t believe it! They are the exact same colours and pattern

Katharine Hayhoe @katharinehayhoe.com · 3d

Opened this box during the family Christmas gag gift exchange and was genuinely excited about it.

V disappointed to realize it was a fake box since I had my knitting in hand and as you can see we already had the two cats to go on top, just needed the hat to be 10/10 😂 #caturday

A picture of a woman knitting with a cat bed hat on her head and a gray and orange cat fighting in it.

A picture of our gray and orange cats fighting.

Katharine Hayhoe @katharinehayhoe.com · 3d

I do appreciate the suggestion but unf you underestimate the number of emails I receive from people not in my address book and the many social platforms in which people leave me comments 😬 I do operate a “one strike and you’re blocked” policy so the same account/address can only get me once, though!

Katharine Hayhoe @katharinehayhoe.com · 3d

Yes - replying feeds the trolls. It’s counterproductive.

Katharine Hayhoe @katharinehayhoe.com · 3d

You didn’t read the next newsletter.

Please feel free to subscribe, it’s free and available on patreon, mailchimp, linkedin and substack!

3 creative ways to use green energy

Green energy innovations, emergency briefing sounds alarm, and how to help with holiday travel

www.talkingclimate.ca

Katharine Hayhoe @katharinehayhoe.com · 3d

Unf none of the messages arrive at an email where that approach would work … but maybe I should create (and publicize) one for that purpose haha

Katharine Hayhoe @katharinehayhoe.com · 3d

That is a whole nother level! 👏👏👏

Katharine Hayhoe @katharinehayhoe.com · 3d

Smart!

Katharine Hayhoe @katharinehayhoe.com · 3d

💯💯💯

Reposted by Dawn J. Wright

Katharine Hayhoe @katharinehayhoe.com · 4d

For years I’ve dealt with some of the nasty comments & emails I receive by writing completely unfiltered replies, telling the sender exactly what I think of them and their comment—then deleting them. Never sending.

Turns out this is an “amazing anger management technique.”

I will keep it up!!! 😎

A screenshot of an Instagram post by The Happy Broadcast outlining the anger management technique of writing something down then throwing it away.

Katharine Hayhoe @katharinehayhoe.com · 4d

💚💚💚

Katharine Hayhoe @katharinehayhoe.com · 4d

Yes!!!

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