Mathieu Daëron

Photo showing a tall, jagged ice front of the Ronne Ice Shelf in West Antarctica rising above the calm surface of the Weddell Sea. Credit: Torsten Albrecht / PIK.

🔔🚨 New Publication Alert!

Research has shown that the Antarctic Ice Sheet is a climate tipping element.

We found: it’s not one — it’s many.

📄 Paper (open access): www.nature.com/articles/s41...

📢 Press release: www.pik-potsdam.de/en/news/late...

Tread below 🧵👇

This may be relevant: link.springer.com/book/10.1007...

I know this is the nerdiest answer ever, but in your situation I’d look into caesium (strong compression maintaining high-quality pictures) + plakar ptar (large tamper-proof archives with rapid access to individual files and web-based preview gui). Good luck!

saerasoft.com/caesium

www.plakar.io

Finally, show rules rule! I can use them to easily format complicated geochemical notations, or to highlight former students/postdocs/mentors in bibliographies, for example.

I also love integrating Typst documents with the output of Python code, which is super easy using TOML import/export.

E.g., list dozens of taxons in a floating table, then collect all listed taxons in the caption, sort them alphabetically, replace the taxons in the table by numbers and list the numbers and corresponding taxons in the caption. That took 15 mn to get right, with zero prior Typst background.

I was like you a happy LaTeX user. I tried Typst for a proposal and found that I could do fairly complicated things in functions with very little effort, even as a newcomer, that would have been impossible (to me) using TeX macros.

Github + Zenodo, linked together so that every Github release is archived/notarized in Zenodo, with a release-specific DOI. (Zenodo also provides an “umbrella” DOI always pointing to the latest release.)

Living on the edge: Response of Late Cretaceous rudist bivalves (Hippuritida) to hot and highly seasonal climate in the low-latitude Saiwan site, Oman Abstract. Earth's climate history serves as a natural laboratory for testing the effect of warm climates on the biosphere. The Cretaceous period featured a prolonged greenhouse climate characterized b...

Starting the week well with a new paper! 🧑‍🔬 Here we show remarkable evidence of rudist bivalves in the hot, Late Cretaceous (75 Ma) tropics mineralizing their shells at temperatures of over 40 degrees C, hotter than any mollusc living today.
cp.copernicus.org/articles/21/...

If you want to read about paleoseismology between rice paddies and water buffalos, check out our last paper about paleoseismology along the Aceh fault, in Indonesia:
authors.elsevier.com/c/1m7C~98we9...

Clumped isotope thermometry (Δ47) measurements in marine gastropods suggest equilibrium precipitation The clumped isotope paleothermometer (Δ47) has been used to reconstruct temperatures from various biogenic carbonate archives. Calibration studies dem…

⏰New paper⏰

Proud to be part of this work led by Alex Quizon & Sierra Petersen where we show that most snails (we tested) precipitate their shells in isotopic equilibrium with seawater, enabling climate reconstructions like the one published earlier this week.

www.sciencedirect.com/science/arti...

Long but very good:

"An essay on wank"

It names and identifies one of my least favorite genre of posts – finally I have a proper term for it!

I'm sure I've been guilty of it too in the past, so it's useful for self-regulation, too.

deadsimpletech.com/blog/essay...

Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific - Nature Communications A better-ventilated North Pacific could have reduced the carbon of water upwelled in the Southern Ocean, reducing outgassing and revealing a remote influence on Southern Ocean biogeochemistry in glaci...

@willerstorfi.bsky.social does it again. Nice work all! www.nature.com/articles/s41...

“Complément d’enquête” s’attaque à l’abus des aides publiques par les multinationales Michelin et Capgemini sont-ils les “vrais assistés de la République” ? Ce jeudi soir, le magazine d’investigation s’intéresse aux multinationales qui bénéficient de généreuses aides de l’État, parfois...

La stratégie délibérée — et très élaborée — de Cap Gemini qui consiste à faire passer des consultants pour des scientifiques afin de gonfler la somme des dépenses éligibles au CIR.
www.telerama.fr/television/c...

Implementation of an interconnected fault system in probabilistic seismic hazard assessment (PSHA): the Levant fault system Abstract. The Levant fault system (LFS), a 1200 km long left-lateral strike-slip fault connecting the Red Sea to the East Anatolian fault, is a major source of seismic hazard in the Middle East. In th...

Transferring seismo-tectonic studies into hazard studies is very important, although often neglected by us, researcher in university lab.
Here is our the new paper by S. El-Kadri, our former PhD student, about seismic hazard in Lebanon and surrounding areas:
nhess.copernicus.org/articles/25/...

Join the Plakar Korp Discord Server! Check out the Plakar Korp community on Discord - hang out with 474 other members and enjoy free voice and text chat.

🚀 Exciting news!
Our next release of #Plakar is scheduled for Monday, September 15th.

Stay tuned for the official release announcement — we can’t wait to share what’s new!

In the meantime, come hang out with us and the community on Discord 👉 discord.com/invite/uqdP9...

Elicit: The AI Research Assistant Use AI to search, summarize, extract data from, and chat with over 125 million papers. Used by over 2 million researchers in academia and industry.

You may find it interesting to test the same query on elicit.com. I’ve found it useful, and it doesn’t make up sources as far as I can tell.

En partenariat avec le LUMEN @univparissaclay.bsky.social et les Archives Nationales nous avons créé une exposition sur l'histoire des expéditions polaires françaises en Antarctique.
Jusqu'au 3 nov au LUMEN
Plusieurs ateliers et visites guidées sont planifiées :
www.lsce.ipsl.fr/la-france-en...

First, that is crazy, thanks for the heads-up. Second, this paper might be relevant: arxiv.org/abs/2507.10734

Understanding the relationship between foraminiferal Mg/Ca and clumped isotope thermometers Reconstructions of past sea surface temperatures (SSTs) are essential for understanding long-term climate variability, yet different proxy methods can…

🚨New paper! We compare foramniferal Mg/Ca and clumped isotope (D47) over the last 1.25Ma in South Indian Ocean and discuss the difference between the 2 thermometers: Mg/Ca baises correction, diagenesis, potential undetermined bias in D47...? Details here 👇🏻
www.sciencedirect.com/science/arti...

New preprint by Kocken & Zeebe says that outdated astronomical solutions that are still widely used to simulate climates in the geological past are wrong, introducing errors of the same order of magnitude as the orbital forcing itself 👇⚒️🧪
essopenarchive.org/doi/full/10....

Rethinking the origin of plate tectonics - with Naomi Oreskes YouTube video by The Royal Institution

In May, historian of science Naomi Oreskes lectured at the @rigb.org on the history of plate tectonic theory, and the video was recently uploaded: www.youtube.com/watch?v=tTAW...

#histsci #HPS

Proud to be on this publication in GCA by Barbora Krizova et al. We show #clumped #isotope reordering in #Cretaceous rudist bivalves is location-specific. Understanding burial history is essential for selecting shell material for #paleoclimate #reconstructions. www.sciencedirect.com/science/arti...

🚨New paper🚨 When studying paleoenvironments and paleogeography in Asia, at some point in your career, you have to take a stab at the India-Asia collision. Well, I just did—in a freshly published paper:
doi.org/10.1016/j.gr... (1/n)

Increasingly convinced the main damage cell phones have done to creativity isn't decreased attention spans or what not but the elimination of productive boredom. Inspiration comes from the mind filling the void inside. Hard to make art when you're constantly silencing the silence with "content."

Voss Postdoctoral Research Associate call is now open at Brown University in the Institute at Brown for Environment and Society (@brown-ibes.bsky.social) - apply.interfolio.com/170172

My group has hosted two amazing postdocs via this program over the past several years, feel free to get in touch!

Could AI slow science? Confronting the production-progress paradox

Fabulous post by @randomwalker.bsky.social & Sayash raising the same concern many of us have about whether we're on the right track with how we're using AI for science. Everyone should read it, take a deep breath & think through the implications.

www.aisnakeoil.com/p/could-ai-s...

Donc si je comprends bien, une différence entre plakar et borg c’est que plakar sera plus pratique vers S3, et borg (pour l’instant) plus pratique vers un homelab en ssh, par exemple ?

Je n’arrive pas à savoir ce qui distingue plakar (en fonctionnalité) de borgbackup par exemple ? Il y a l’interface web, mais quoi d’autre ? En tout cas félicitations, ça a l’air de cocher beaucoup de cases intéressantes.

What does it bring to the table vs borgbackup?