PhD opportunity Back to the roots! Can plants avoid water stress by moving water uptake to deeper soil? Find out in this IMPRS PhD project, coop with @chriswernerlab.bsky.social, @bernhardschuldt.bsky.social and a whole consortium investigating plant hydraulics 👉 More info: shorturl.at/66nBa

Oil, conflict, and climate change – there is a direct connection.

Dr Evil setting the mood for 2026. #caturday

"‘It’s surreal’: US sanctions lock Intl Criminal Court judge out of daily life. Canadian judge Kimberly Prost is unable to use credit cards or access everyday services (Uber, Alexa, Ticketmaster...) in what she calls an attack on the independence of the judiciary." www.irishtimes.com/world/us/202...

Happy New Year! To all new Bluesky users: the emojis and/or hashtags that I frequently add to my original posts, notably to (re-)share scientific papers of mine and other researchers, are not for decoration, but are tags for Bluesky feeds. Here is a 🧵 with a few examples of feeds and tags. 👇🏻 (1/8)

When I decided to become a climate scientist, I thought I’d only need do it for a decade or so – because it was so obviously urgent, surely we would fix it by then? And then I would go back to studying galaxies. Now, thirty years in, I have a different plan for what’s next ⬇️😄

Happy New Year's Day! Here's some climate inspiration from around the world--six continents, six stories, and many reasons for hope in 2026, from Katherine Hayhoe. Visit substack.com/home/post/p-...

When I decided to become a climate scientist, I thought I’d only need do it for a decade or so – because it was so obviously urgent, surely we would fix it by then? And then I would go back to studying galaxies. Now, thirty years in, I have a different plan for what’s next ⬇️😄

Mongabay's investigative journalism logged 870+ impacts in 2025—exposing Amazon crimes, driving indictments in Brazil, and empowering Indigenous communities to protect their lands.

As grocery prices continue to rise, many college students are turning to their campus food pantry to help make ends meet. n.pr/4pkenxQ

Feed: "Talking Climate" By: Katharine Hayhoe on Wednesday, December 31, 2025

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!

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!

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

This concern is appreciated and warranted, but to clarify: 3 out of 9 regional Climate Adaptation Science Centers have had their funding frozen (DOI won’t approve their 5-year renewals). 6 regional CASCs are still (mostly) funded. We haven’t given up on restoring funding for the full network.

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 ⬇️

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/...

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.

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 ⬇️

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...

If you are interested in ecohydrology and soil-plant-water relationships under drought, here's the chance to join a great team.

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!

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

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!!! 😎

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?

Make a Bond movie academic: Skyfall: Increases in advection fog in Atlantic Canada - spatial modelling scenarios of AMOC variations.

🚨🔥 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. 🔥🚨

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?

"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...

Welcome, former Twitter artists! From paleoart to fine art, comics to medical illustration, bioart to space imagery, explore the rich SciArt ecosystem on Bluesky with the SciArt Starter Pack. 150 artists, plus the entire popular SciArt Feed 🐡. And no gen AI or NFTs.

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...

So good to read @billmckibben.bsky.social as guest editor on @katharinehayhoe.com recent newsletter! mailchi.mp/efe6d2ba878b...

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

Some thoughts to prepare Scientists for future headwinds in 2026...Mentions my friend Katharine Hayhoe Read at: www.forbes.com/sites/marsha... --

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.

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!

I’ve watched at least two dozen reels, showing the terrible snow conditions in Colorado and Europe right now. Guess how many of those videos mentioned climate change? And how many mentioned chemtrails? The same number. ONE. 😱

I’ve watched at least two dozen reels, showing the terrible snow conditions in Colorado and Europe right now. Guess how many of those videos mentioned climate change? And how many mentioned chemtrails? The same number. ONE. 😱

Did I make the family dress up in historical outfits and go dancing at Mount Vernon tonight as our Christmas outing? Why yes I did and a good time was had by all 😄

Join this session as panelists discuss how linking the perspectives and values of science and faith communities can create mutual benefits. Discover ways to bring these groups together and enhance communication and understanding of weather and climate science. More: https://bit.ly/4oIZg0v #AMS2026

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 ⬇️

“Last year more than 40% of electricity generation on Christmas Day came from renewables. It stood at 1.7% in 2009” #GreenSky #GreenShoots “An extra 2 gigawatts of #wind and 3GW of #solar power came on to the network in 2025” @katharinehayhoe.com @350.org www.theguardian.com/environment/...

This Yglesias piece in the NYT is horrifically bad. Almost every "fact" it cites is provably false. At best it is cocktail party banter from a pundit who knows nothing of energy. At worst, it was cut/paste from oil industry talking points. So, a rebuttal: www.nytimes.com/2025/12/18/o...

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 ⬇️

One the first set climate research centers, labs & groups joined Bluesky, the next group came fast: so I needed a Part 2. Here's the 2nd list of official organizations who made the move to bluer skies. Choose a few to follow or click the whole list! Day 7 of my 20 Days of Climate Starter Packs.

If you are in the US and you would like to send a message to your elected representative about the proposed dissolution of the National Center for Atmospheric Research, @agu.org makes it easy with a template here: agu.quorum.us/campaign/151... #AGU25

This is fascinating - and sad. Only 37% of us think it's too late to act? That is a lie from the pit of the tar sands, my fellow Canadians! As Christiana Figueres says, "We are only as doomed as we believe ourselves to be." This is how we can change our future: bsky.app/profile/kath...

The Trump administration says it will dismantle the National Center for Atmospheric Research, a cornerstone for American climate and weather science. I went on NPR today to explain what this could mean for climate research. Listen here:

This forecast 500 mb weather pattern resembles what is more typical in June rather than in December. Warm records both at the surface and aloft should be smashed #ChristmasDay. @katharinehayhoe.com @matthewcappucci.bsky.social @heatwavekgns.bsky.social @weatherprof.bsky.social @zacklabe.com

It’s scientifically and ethically wrong to say, “It’s too late to stop climate change.” At Project Drawdown, we will never give up.