Bob and I were among the hundreds of researchers that were supposed to conduct the 6th U.S. National Climate Assessment. Now it looks like they're gonna produce it with a few people and Grok? Communities need rigorous and accurate information about climate change. This will put communities at risk.

This, this is the jingle bells remix I absolutely did not know I needed...

This looks like a cool job... www.researchgate.net/job/1034278_...

Uten det mangeårige samarbeidet med NCAR hadde Norge ikke klart å bygge sin egen klimamodell, og en nedleggelse er derfor dramatisk for klimaforskning her i landet også. Viktig at NRK belyser denne saken: www.nrk.no/klima/usa-vi...

Threatening to dismantle NCAR, our premier weather and climate research institute (apparently) because Colorado refuses to pardon someone accused of tampering with voting machines is a sad example of our current kakistocracy in action… www.nytimes.com/2025...

I came to the US over 10 years ago for a postdoc at NCAR. It changed my life and supercharged my ability to do science. NCAR's unique community nature makes it a global node in atmospheric and climate research. It's really not possible to overstate its value for science and society.

Reposting this, to remind us that climate and weather models do not make themselves...

12:15 Thursday at AGU for those attending

That the NCAR Mesa lab is beautiful is no accident. Assigning a beautiful place and building to the important task of understanding our planet speaks of a society that values both this undertaking, and the people who do it. To take that away is emblematic of attempts to undermine this status. 1/2

"Science Under Siege -- the NCAR Development" | My new commentary: michaelmann.net/science-unde... #ScienceUnderSiege

It is hard to overstate how critical @ncar-ucar.bsky.social is to climate science in the US and around the world. It's the beating heart of our field. Generations of scientists have trained there, and almost everyone I know relies on deep collaborations with NCAR scientists. It's end is unthinkable.

NCAR’s Mesa Lab is literally a science castle dedicated to understanding our planet in an open and collaborative way, and leading the world in that effort. We cannot let this happen.

I know many of you who follow me don't work in climate science, but this is the biggest story in climate right now. Breaking up NCAR makes us all less safe and is another act of self-harm that will take decades to recover from.

A deeply dangerous — and blatantly retaliatory action against Colorado — by the Trump administration. NCAR is one of the most renowned scientific facilities in the WORLD — where scientists perform cutting-edge research everyday. We will fight this reckless directive with every legal tool we have.

NCAR is a unique & valuable asset - far more than a climate model, or observations, or technology, or training ground, or gathering space. It covers weather, space weather, data, climate, paleo-climate, and everything in-between. It's building is an icon, but it's iconic status goes far beyond that.

The beautiful idea of NCAR, to improve understanding of our planet through a cooperative, shared and open intellectual team effort, is literally what has got me out of bed every morning for nearly two decades. This cannot, CANNOT be allowed to happen. eu.usatoday.com/story/news/p...

If Senators Bennet and Hickenlooper do not bring the Senate to a complete halt over this, blocking every Trump nominee, then they should think about quitting.

No surprise: new analysis shows that heat pumps can deliver excellent performance even in older buildings with no meaningful correlation between building age & heat pump efficiency. This is in line with my own experience of having a heat pump in a 1880 Victorian home with only modest insulation.

A new paper in @nature.com led by Jeff Chambers, finds evidence of climatic mortality thresholds combining heat and drought, & explores the emergence of 'hypertropical' climates in future climates. Amazing multi-decadal effort by the field teams involved 👏 www.nature.com/articles/s41...

Climate science job opportunity @cerfacs in Toulouse :) cerfacs.fr/en/offer/ful...

The NorESM community will (also!) be running a tutorial in January 14-16th, in Bergen, Oslo and online (for those who prefer their ESM tutorials in an Euro-timezone!). It is focused on NorESM2.3 but the workflow will be similar for the (in development) NorESM3. docs.google.com/forms/d/e/1F...

New FATES PhD position in Luxembourg :). app.skeeled.com/offer/c/68a8...

Happily, there will be a CESM tutorial again this year @ncar-ucar.bsky.social Also, much like learning a Scandinavian language, once you can run CESM, you can probably also run NorESM, CMCC and E3SM, so it's like a 4-in-1 deal... :) www.cesm.ucar.edu/events/tutor...

Absolute unit of a stile

hats-off to the small-but-mighty NorESM team, who have conceived of, planned, constructed, submitted and analyzed a multi-stage coupled PPE ("perturbed physics ensemble") -including every model component- in about two weeks flat. Some A-grade technical prowess/collaborative skillz going on over here

Many thanks to @eilifursinreed.bsky.social for translating this nice piece he wrote on the ESM development prcess... :)

Global CO2 emissions are showing signs of levelling, thanks to a slight decline in net land-use change emissions offsetting continued growth in fossil emissions. The trends are way off compared to the 1.5C scenarios with no or low overshoot assessed in the IPCC. Details: bsky.app/profile/glen...

Collatz, Berry, Clark, Sellers and colleagues practicing open data policies since the mid 90s :-)

Same for veg models in my limited experience. And, at interview, when you’re asked where all your first author papers are and you say, eh but…veg model (see code), it doesn’t count. It doesn’t count like it should to do really hard things. I should have stuck to stats. Sorry, mini rant over 🙈

Making a climate model that works well is really, really hard. So hard, in fact, that the people who do make it happen rarely have the time or energy to talk about how hard it is on the internet. So most other people have very little understanding about how hard it is... But boy is it hard #NorESM3

Hey Labour Remember the majority of voters who believe in treating people decently and not stealing from those who've endured months and years of hardship fleeing war and persecution to seek a place of safety? We're still over here 👋

Global Carbon Budget 2025, released today.

New #FATESmodel job focused on fire modeling at UCIrvine :) recruit.ap.uci.edu/JPF09965

On Monday 10th @14:00 BST |15:00 CET |07:00 MT, the International Land Model Forum and ISI-MIP are hosting a joint webinar. Topics will include: The design of ISIMIP experiments, Harmonization of forcing and land-use data, Shared challenges e.g. generating sub-daily forcings for offline forcing.

On Monday 10th @14:00 BST |15:00 CET |07:00 MT, the International Land Model Forum and ISI-MIP are hosting a joint webinar. Topics will include: The design of ISIMIP experiments, Harmonization of forcing and land-use data, Shared challenges e.g. generating sub-daily forcings for offline forcing.

💡Read the latest #NGC news article to find out how this first multi-model benchmarking study identified growth and mortality rates as critical variables in the development of vegetation demographic models (VDMs). Click the link below: nextgencarbon-project.eu/news-thefirs...

For any unfamiliar with the quality of journalism at Teen Vogue, it's well known for hard-hitting stories on "politically sensitive" topics including climate. Then there's CBS: the only major network to increase climate coverage in the last few years. They just axed nearly their whole climate team.

Sales of non-diesel heavy trucks in the Chinese domestic market reached 57% of the total in September. LNG truck sales are still doing well, but the growth is largely in battery trucks.

📢 The third publication from NGC is out! "Demography, dynamics and data: building confidence for simulating changes in the world's forests" was published in the @newphyt.bsky.social last week. Several #NGC colleagues are among the paper's authors💡 nph.onlinelibrary.wiley.com/doi/10.1111/...

Imagine a peregrine at 250kph throwing axes at you...

What happens when both your parents are "I'm going to need a diagram for this" thinkers...

Oh, this is really cool...

Cannot now remember a time before we were Finishing the Earth System Model for CMIP. Please check in on your ESM model developer friends. They might well need more chocolate...

How is this happening, that random gangs of bribed vigilantes are hunting people in the streets of formerly civilized cities? I know there is a lot to process right now, but this one got to me more than most.

Man, this has been too true for too long. And beyond, "Okay, but get a heat pump" there's also "here's how to get a heat pump" and "here's a great installer."

People can do marvellous things....

See also this excellent piece by @jamesgdyke.info: www.technosphere.earth/fossil-fuels...

The truth: we need migration. The problem: too many politicians are terrified to say it. Why? They're led by a) toxicity of the charlatans & b) wealthy media organisations who demand these useful distractions rather than us talking about inequality. Reject it. Draw the line.

Sorry, but disagree with @hausfath.bsky.social here. You open Pandora's box, you ain't closing it again. We've already seen with Paris that well intentioned international agreements do not translate into physical reality and SRM governance is a much harder problem. Zero is the only safe level. /1