Based on what I have been hearing about the NCAR situation, no one knew anything until the USA Today article came out. That means there isn’t much actual organization inside the administration to pull this off and a chance to fight back. Call your congresspeople today! Especially republicans.

Attacking NCAR is enormously self-destructive for America. NCAR is the leading centre in weather and climate research in the world. We Europeans often travel to NCAR to collaborate, discuss and learn. Hurting the centre will cause damage that is irreversible for years to decades with global impact.

This news is nothing short of a tragedy and an outrage. I urge my American friends and colleagues to call your congressional representatives and resist this blatant attack on science and academic freedom! www.rmpbs.org/blogs/scienc...

PIK at #IPCC: Nine PIK scientists joined the first Lead Authors’ Meeting for the 7th Assessment Report on the state of climate science in Paris last week. The meeting marked the start of drafting the 3 Working Group reports: www.pik-potsdam.de/en/news/late... @ipcc.bsky.social @wflamb.bsky.social

Back by popular demand: At #EGU26 we'll organize another BUGS session: Blunders, Unexpected Glitches, and Surprises! Submit abstracts on ideas that seemed great but didn't work, errors and bugs that led to new insights (or funny stories), or any other unexpected results. www.egu26.eu/session/56997

CO making me proud ♥️⛰️

“We need to start, now, to reduce CO2 emissions from fossil-fuels, by at least 5% per year. This must happen in order to have a chance to avoid unmanageable & extremely costly climate impacts affecting all people in the world.” PIKs J. Rockström @theguardian.com www.theguardian.com/environment/...

Carbon offsets fail to cut global heating due to ‘intractable’ systemic problems, study says

"Matlab is the Visual Basic 6 of technical computing." #HeardAtJuliaCon #JuliaCon #JuliaLang

“Over the past 20 years, Paris has undergone a major physical transformation, trading automotive arteries for bike lanes, adding green spaces and eliminating 50,000 parking spaces. Part of the payoff has been invisible — in the air itself.” Leadership, strategy, real action, common sense. #Paris

Breaking News! Code Yikes! Yesterday, Antarctic sea-ice extent reached 4 standard deviations below the 1991-2020 daily mean. The only other years on record where this has happened are 2023 and 2024. In a normal distribution, 4 SD's represents a 1-in-31,600 event. These are not normal times.

“It would be a huge mistake to deviate from 1.5.” PIK Director Johan Rockström and other leading scientists spoke to @newyorker.com about the realities of delayed emissions reductions and the dire consequences of giving up hope. www.newyorker.com/news/the-led...

"Auch ohne Klimawandel gibt es Extreme. Aber in einer Welt mit #Klimawandel häufen sich diese Extreme und das ist der Punkt", so PIK-Meteorologe Peter Hoffmann. Im Gespräch mit rbb24 spricht er über den Potsdamer Dürre-Rekord, Ursache & Folgen der Extreme: ➡️ www.ardmediathek.de/video/Y3JpZD...

This plot from NYTimes is getting a lot of play today. Let me just note that calculating a 15 year trend ending w/ an El Nino-boosted interval is the sort of thing that would make Dick Lindzen blush (excerpt from "The Hockey Stick & the Climate Wars" (www.barnesandnoble.com/w/the-hockey...)

Sustainable development needs strong climate protection, says PIK scientist Jessica Strefler at #SB62. Current policies still lead to costly damages, esp. in poorer countries. Stronger emission cuts are crucial & can help to reduce inequality. More info: iopscience.iop.org/article/10.1...

Good Science xkcd.com/3101/

Europe's economic woes have nothing to do with #ClimatePolicy, says PIK Director Ottmar #Edenhofer in an interview with @ftm.eu. “Climate damage is going to be a fundamental threat to our #Economy and prosperity.” www.ftm.eu/articles/ott... (€)

Looked at the report to see how they evaluated model performance and what a surprise - the reported accuracy metrics are based on randomly sampled datapoints. Spatial data is not i.i.d., and model evaluation is the hardest part of any ML project (but not as fun as trying a dozen model architectures)

Scientists show that +1.5 °C is far too warm for Earth's ice sheets and will result in several metres of sea-level rise over the coming centuries, extensive loss and damage to coastal populations and will challenge the implementation of adaptation measures www.nature.com/articles/s43...

New article about AI/LLMs capabilities to summarised scientific research TL;DR: It's bad, and the new ones are performing worse

This is horrible. I don't even know what to say. Some of our most key polar data. "As a result, the level of services for affected products below will be reduced to Basic—meaning they will remain accessible but may not be actively maintained, updated, or fully supported." nsidc.org/data/user-re...

If you, like us, think that these kinds of community activity are needed, we warmly invite you to get involved in AgML. So far, we've created benchmark datasets, organised a workshop, Kaggle competition and there's so much more we'd like to do - join our mailing list: mail.agml.org/mailman/list...

“If everything goes right, none of you will be able to afford food, housing, or retirement ever again.” theonion.com/trump-says-r...

Impressive red #Arctic in February with temperatures around 20°C above average, high enough for sea ice to melt. In #Europe the average temperature for February was 0.40°C above the reference period according to the #Copernicus #Climate Change Service (C3S). #climateemergency @eumetsat.int

I am 100% serious when I say that one of the most important skills for a researcher is an exceptional tolerance for feeling stupid. As a researcher, you really have to lean into feeling stupid.

The ocean is the final victim of multiple planetary crises, suffering from nutrient pollution, excess heat, rising CO₂, explains PIKs Johan Rockström. "This has to be turned around. The ocean will ultimately determine whether we secure a livable future for humanity." www.weforum.org/videos/earth...

What is happening now is that Kate Calvin, NASA Chief Scientist and Senior Climate Advisor, and Co-Chair of the IPCC WGIII report, was not allowed to attend the IPCC 62 plenary, where the outline of the AR7 Working Group reports is scheduled to be approved. edition.cnn.com/2025/02/21/c... 4/...

Scientists sound alarm after collecting unprecedented data from world's oceans: 'The broken records ... have become a broken record' by Leslie Sattler for The Cool Down. Read more here: www.thecooldown.com/outdoors/war...

In Nature Climate Change, we show that a year above 1.5 °C signals that Earth is most probably within the 20-year period that will reach the Paris Agreement limit. @natclimchange.bsky.social

I hate what deep learning has done to the word "inference". Now we are forced to write sentences in our papers like "approximate inference at inference time"—I'm all for nonsense Dr Seuss language, but not in a scientific paper!

🚀 Join the 4th SBI Hackathon! 🚀 The last SBI hackathon was a fantastic milestone in forming a collaborative open-source community around SBI. Be part of it this year as we build on that momentum! 📅 March 17–21, 2025 📍 Tübingen, Germany or remote 👉 Details: github.com/sbi-dev/sbi/... More Info:🧵👇

"2. 'The Program' refers to the medley of source code, shell scripts, executables, objects, libraries and build files supplied to You [...] 3. 'You' refers to the person or persons brave and daft enough to use the Program. 4. 'The Documentation' refers to the Program." Finally a serious license

"Questionable practices in machine learning" arxiv.org/pdf/2407.12220

Ever wondered why presenting more facts can sometimes *worsen* disagreements, even among rational people? 🤔 It turns out, Bayesian reasoning has some surprising answers - no cognitive biases needed! Let's explore this fascinating paradox quickly ☺️

New report from @wwattribution.bsky.social reveals that climate change added 120+ days of dangerous heat in many equatorial countries Those contribute almost nothing to CC, yet bear its worst impacts. It's indefensible for wealthier nations like us to continue inflicting this 🔗 shorturl.at/W4vPy

“We don’t value software, data, and methods in the same way we value papers, even though those resources empower millions of scientists” 💯 www.statnews.com/sponsor/2024...

@lilybellesweet.bsky.social @jonathanwider.bsky.social