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

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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

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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

💚💚💚

Katharine Hayhoe @katharinehayhoe.com · 8h

Yes!!!

Katharine Hayhoe @katharinehayhoe.com · 8h

Yeah unfortunately he thinks attacking climate scientists is climate action and he’s blocked for that.

Katharine Hayhoe @katharinehayhoe.com · 11h

Hahaha me too

Katharine Hayhoe @katharinehayhoe.com · 12h

I love the knitting feeds here - the perfect antidote to doomscrolling! And where I discover new-to-me techniques like assigned pooling!

Katharine Hayhoe @katharinehayhoe.com · 12h

The Beyond Conflict institute has worked on exactly this for decades. Highly recommend their content.

Reposted by Katharine Hayhoe, Peter Thorne

Dr Dan Shugar 🇨🇦 @watershedlab.bsky.social · 12h

Make a Bond movie academic:

Moonraker: How raking the moon won't stop forest fires

Karen James @kejames.bsky.social · 12h

Make a Bond movie academic

A View to a Kill: Evolutionary trade-offs in owl sclerotic ring development

🇵🇸Martin “Doomsday” Pfeiffer🖖🏳️‍🌈 @nuclearanthro.bsky.social · 14h

Make a Bond movie academic

Goldfinger: Bitcoin & the Semiotics of Digital Goldbugs

Reposted by Richard Waite

Katharine Hayhoe @katharinehayhoe.com · 12h

I’m increasingly convinced that self care is climate action. After all, if we want a sustainable world, don’t we have to be sustainable too?

For me, that means time with friends & fam, nature, knitting, chocolate, tea, and a stack of good books.

What’s your favourite way to recharge?

Climate content for purpose, courage, and hope

Books, podcasts, and newsletters that inspire and renew

www.talkingclimate.ca

Katharine Hayhoe @katharinehayhoe.com · 13h

An experiment conducted in my department …

Student Evaluations Can’t Be Used to Assess Professors. They’re Discriminatory.

And that means they’re illegal.

slate.com

Reposted by Katharine Hayhoe, Michael J. Allen, Richard Waite

Climatologist49 @climatologist49.bsky.social · 13h

🚨🔥 Warmest Christmas on record for the Contiguous U.S.! The average high of 57.9F and the average low of 36.6F each broke the Christmas record by a full 3F. 🔥🚨

Reposted by Katharine Hayhoe, Robert C. Richards

Jennifer Ouellette @jenlucpiquant.bsky.social · 1d

Looking for a Christmas miracle for a kitty (aging parent situation) for Baltimore pals: (1/2)

""My mom can no longer keep Angelo (alas!!!) and we are looking to rehome him. Angelo is a total sweetheart. He is 6 years old, gentle, playful, friendly, and a lovebug."

sweet-faced tabby cat sitting at a table with front paws on the edge of the table.

Katharine Hayhoe @katharinehayhoe.com · 2d

So to recap: you believe know more than a scientist and you won’t read anything you disagree with. That’s the exact profile of a dismissive.

Katharine Hayhoe @katharinehayhoe.com · 2d

Dang we just finished in-laws Christmas literally just up the road this morning. Tell me which one it is for next year!

Substack

A climate reality check from Bill McKibben

Solar energy pays off in Australia, the US turns back the clock on climate action, and help Third Act simplify solar This week, I’m honoured to have my friend Bill McKibben guest edit this newsletter. Bill is one of the most well-known and longest-serving climate activists in the U.S., and he knows a thing or two about how hope keeps us going, even in the face of seemingly insurmountable odds. We share a deep passion for engaging people in climate action, and we’re both motivated …

Reposts 18 2d

Reposted by Katharine Hayhoe

City Atlas @cityatlas.bsky.social · 2d

"Was I losing my mind?" -- a quote that covers much of 2025, and will likely fit in 2026 too. But here it's from the irreplaceable @sammyroth.bsky.social visiting the LA Auto Show:
www.climatecoloredgoggles.com/p/finding-am...

Finding America at the LA Auto Show

I spent the day counting EVs and marveling at the auto industry's marketing genius.

www.climatecoloredgoggles.com

Katharine Hayhoe @katharinehayhoe.com · 2d

You completely misinterpreted what we were talking about. If you were listening to the interview, you’d know we were talking about science in the United States.

You’re also wrong about climate change. Please update your understanding here before commenting again and do not misquote me. Thank you.

Are we really doomed?

Is it too late to do anything about climate change?

open.substack.com

Reposted by Katharine Hayhoe

lani ritter hall @laniritterhall.bsky.social · 2d

So good to read @billmckibben.bsky.social as guest editor on
@katharinehayhoe.com recent newsletter!

mailchi.mp/efe6d2ba878b...

A climate reality check from Bill McKibben

mailchi.mp

Reposted by Katharine Hayhoe

Sammy Roth @sammyroth.bsky.social · 2d

At last month's LA Auto Show, Volkswagen found the perfect marketing hook for its gas-guzzlers: the Los Angeles wildfires. Yes I am not kidding.

Also, I counted electric vehicles on the show floor and was (mostly) not encouraged.

Wrote more here: www.climatecoloredgoggles.com/p/finding-am...

Now free to read: Finding America at the LA Auto Show

I spent the day counting EVs and marveling at the auto industry's marketing genius.

www.climatecoloredgoggles.com

Reposted by Katharine Hayhoe

David John Gagne II @djgagnedos.bsky.social · 3d

Even after the news last week, we are still doing great research here at NCAR. My group has released a new paper, led by John Schreck, on arxiv about an efficient method for generating calibrated AI weather ensembles with reproducible scale specific perturbations. arxiv.org/abs/2512.18815

Controllable Probabilistic Forecasting with Stochastic Decomposition Layers

AI weather prediction ensembles with latent noise injection and optimized with the continuous ranked probability score (CRPS) have produced both accurate and well-calibrated predictions with far less ...

arxiv.org

Katharine Hayhoe @katharinehayhoe.com · 3d

Thank you Marshall! Merry Christmas ☺️

Reposted by Katharine Hayhoe, Julie L. Lockwood

Marshall Shepherd @drshepherd2013.bsky.social · 3d

Some thoughts to prepare Scientists for future headwinds in 2026...Mentions my friend Katharine Hayhoe

Read at:
www.forbes.com/sites/marsha...

--

Katharine Hayhoe @katharinehayhoe.com · 4d

I do too! 😍

Katharine Hayhoe @katharinehayhoe.com · 4d

I’m sorry I can’t do DM’s. www.katharinehayhoe.com/contact/

Contact Dr. Katharine Hayhoe

Do you have a climate question, resource inquiry, or event invitation? If it's not already covered by my FAQs, you can submit it here!

www.katharinehayhoe.com

Katharine Hayhoe @katharinehayhoe.com · 4d

See starter packs 1-8 below!

Katharine Hayhoe @katharinehayhoe.com · 6d

Did you know climate work attracts Katharines? 116 of us on Bluesky alone!

(This pack includes all creative spelling variations although the original has two A’s, deriving from the Greek καθαρός 😊)

This is Day 8 of my 20 days of Climate Starter Packs. For the previous entries please see below ⬇️

Reposted by Katharine Hayhoe

Eos @eos.org · 4d

We already knew that climate change is likely making tropical cyclones stronger. But new research suggests warming could also make the precursors to these storms more intense.

Warming May Make Tropical Cyclone “Seeds” Riskier for Africa - Eos

Intensified hurricane precursors may linger longer over the continent, worsening extreme flooding hazards.

eos.org

Katharine Hayhoe @katharinehayhoe.com · 4d

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 · 4d

Not for climate science. 🙄

Katharine Hayhoe @katharinehayhoe.com · 5d

PS. If you want snow right now go to Lake Louise or Revelstoke. 5 metres of snow so far this year. Climate change gives you a few bigger wins along with the terrible losses … but the odds aren’t great.

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