Jaime

Expansion of Antarctic Bottom Water driven by Antarctic warming in the last deglaciation - Nature Geoscience Antarctic Bottom Water progressively filled more of the deep Southern Ocean through the last deglaciation, potentially contributing to the increase in atmospheric CO2, according to neodymium isotope r...

🌊 Expansion of Antarctic Bottom Water driven by Antarctic warming in the last deglaciation

www.nature.com/articles/s41...

Thermal and Non‐Thermal Controls on Benthic Foraminiferal Mg/Ca, Sr/Ca, B/Ca, and Mg/Li: Global Core‐Top Compilation, Revised Calibrations, and Application to the Geologic Record We compile ∼1,500 core-top benthic foraminiferal Mg-Sr-B-Li/Ca measurements from five species and one genus to produce new calibrations Many benthic foraminiferal elemental systems require multiv...

new paper led by Andressa Nauter-Alves assessing controls on trace elements (Mg, Sr, B, Li /Ca) in multiple species of benthic foraminifera using a large compilation of coretop samples (>1500 sites).

dx.doi.org/10.1029/2025...

Brève de Science : protéger les données sensibles L’adage “si c’est gratuit, c’est vous le produit“ n’a jamais été aussi vrai qu’aujourd’hui sur Internet.

🔐 Applications de rencontre, rendez-vous médical en ligne… La gratuité repose souvent sur la collecte et l'exploitation de nos données personnelles. Comment garantir leur sécurité ?
C’est l’enjeu des travaux de Geoffroy Couteau, cryptographe CNRS au sein de @irif-paris.bsky.social.

Low-latitude biostratigraphy and diversity of planktonic foraminifera from the middle Eocene to early Oligocene Abstract. The middle Eocene through early Oligocene was an important interval for Cenozoic climate evolution, having a substantial impact on global palaeoceanography and the biosphere. At the Eocene–O...

🛎️ 🛎️ New(ish) paper alert!! 🛎️ 🛎️

After 9 years, I have finally managed to publish the results from my MSc thesis during my time at the University of Birmingham on the MSc in Applied and Petroleum Micropalaeontology course!

jm.copernicus.org/articles/44/...

A plankton net (think large wind sock) hangs from the back of a boat. We use these to conduct surveys of the ecosystem and bring back live plankton to the lab.

Day 2 of #exoCeanadvent: Come with us to sea (you can also be a land based participant).

As an 'inland' ocean lab, we don't quite have the sea on our doorstep, but that doesn't mean we can't bring it to us!

We're based just 30–60 minutes from boats out of Marseille and Toulon.

How could we forget, LAB-rador mascot (not really, but American Labpard doesn't work so well), Jean-Milou [somehow not on @bsky.app yet].

Anglophones you can call him John-Milo.

The three PIs of #exoCean in Lego format. Olivier the steampunk moustache man, Julie smiling with her paintbrush (for picking forams) and Tom carrying some blue chemical (probably for his hair).

#exoCeanadvent Day 3: An important part of creating a lab is to be able to plan things in miniature, for this we use #Lego versions of our team, they tend to be a bit cheaper for testing. You may spot some of @chalkyoceans.bsky.social's not so secret wishlist in the background (#nu-instruments).

The people that actually do all the work in exoCean, Right to Left: Jaime, Sonia, Maxime, Matthieu and Astrid. Did you know Lego magnifying glasses actually work? No, us neither!

And yes, you'll be added too if you come to work in our lab, @cerege.bsky.social! @soniachaabane.bsky.social, @jysuarezibarra.bsky.social, and others have their figures already. Find details about the full size versions of all these folk now (or soon) on our website.

exocean.academicwebsite.com

@juliemeilland.bsky.social won this year’s Alan Higgins Award! We cite: « her pioneering work on planktonic foraminifera - including the first multi-generational lab cultures - has transformed how we study and apply these vital microfossils. »
Yay!

Congrats to @juliemeilland.bsky.social, who just got awarded the prestigious Alan Higgins awards from the @micropalaeosoc.bsky.social !

I was awarded the Alan Higgins Award by @micropalaeosoc.bsky.social for my work on planktonic foraminifera reproduction and culture. I feel very honored and can only thank all the great colleagues who supported me along the way in Norway, Ireland, the UK, Germany and France!

My co-authored marine GDGT « cookbook » review paper led by Peter Bijl 👨‍🔬 and @kasiasliwinska.bsky.social 👩‍🔬 is now published in @egubg.bsky.social!
doi.org/10.5194/bg-2...
Again, I am so happy to be the @cerege.bsky.social @climatecerege.bsky.social expert on #GDGTs!
@egu.eu
🧪 ⚒️ 🌊
#PaleoSky
(1/3)

The Laschamp geomagnetic excursion recorded in marine sediments from the western South Atlantic 🌊

New paper alert👇
doi.org/10.1016/j.qu...

Interested in corals, dispersal, and diversification dynamics? 🪸

We're offering a PhD project on how the Tethys closure shaped global marine biodiversity — supervised by me, Bridget Wade, Nadia Santodomingo, & Francesca Bosellini.

🗓️ Apply by 17th December 2025

www.trees-dla.ac.uk/projects/how...

@ird-fr.bsky.social @climatecerege.bsky.social
@cerege.bsky.social ❤️

The worst possible scenario for Jamaica came true: climate-fueled hurricane #Melissa just made landfall at its strongest.
Maximum sustained winds of 295 km/h (185 mph) and an
estimated minimum central pressure of 892 mb (26.34 inches).
Devastating.

postdoc position within “Green2Ice”, on the evolution of the Greenland ice sheet. Closing date is 25th November, 2025. Start date is 1st February 2026 jobportal.ku.dk/videnskabeli...

two more open positions (Northumbria this time) a three-year position in machine learning emulators of ice-ocean processes, and a Postdoctoral Researcher for a three-year position in numerical modelling of the world’s ice sheets.
Closing date: 30th Nov 2025 work4.northumbria.ac.uk#en/sites/CX_...

Kind of a dream job...

Calcifying Plankton: Tiny Marine Organisms at the Heart of the Earth's Climate - CEREGE Sonia Chaabane (CR, IRD) and Thibault De Garidel (DR, CNRS) have taken part in an international study highlighting the major role played by plankton.

A study published in Science highlights the crucial role of calcifying plankton in regulating our climate.

With contributions from CEREGE researchers @soniachaabane.bsky.social (@ird-fr.bsky.social)and Thibault de Garidel-Thoron (@cnrs.fr)

Learn more: www.cerege.fr/en/calcifyin...

Postdoctoral Research Associate - Earth, Environmental, and Planetary Sciences Position Summary The Climate and Paleoclimate Lab in the Department of Earth, Environmental, and Planetary Sciences at WashU in St. Louis seeks a Postdoctoral Research Associate in tropical climate/pa...

We're hiring! I'm recruiting a Postdoctoral Research Associate in climate & paleoclimate modeling of the tropical Americas. Come obsess over the tropical rain belt with me! :) Please share w/folks who may be interested. Ad here: wustl.wd1.myworkdayjobs.com/en-US/Extern...

Postdoctoral Research Associate at University of Liverpool Looking for a new job opportunity in academia? Check out this job opening for a Postdoctoral Research Associate on jobs.ac.uk!

Seeking a three year postdoc in the field of ocean biogeochemistry and productivity using mechanistic models and synthesis of observations. Note the short fuse for applications. Please help distribute. All nationalities welcome to apply! 🌊

www.jobs.ac.uk/job/DPG117/p...

If you are looking for 6month master research internship - really cool team 🙃 !

Please repost and pass on to your students looking for M2 internships.

Please repost and pass on to your students looking for M2 internships.

Just realised that this is as close to an "M2-M2" project as you are likely to get.

Explore the aftermath of one of the most interesting features of the Pliocene, MIS M2 during your M2 internship!

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

Wonder what carbon was doing in the oceans before humans were around to see? We'll use the chemistry of tiny shells on the seafloor to find out how carbon moved between the ocean and atmosphere over 1 million years ago.

Come work with us in 2026 for your M2 internship @climatecerege.bsky.social.

Interested in improving our knowledge of climate by looking into the past? In the Pliocene the earth was hotter than today, but carbon dioxide was "about the same".

Come work with us in 2026 looking at where this crucial information comes from, and how to make it better during an M2 internship.

Calcifying plankton: From biomineralization to global change The cycling of calcium carbonate (CaCO3) in the ocean is closely linked to seawater alkalinity and the regulation of atmospheric CO2. In the modern pelagic ocean, almost all CaCO3 is produced by three...

Excited to share our new paper out today in Science led by Patrizia Ziveri and the BIOCAL Working Group!
With @willerstorfi.bsky.social, @nanophyto.bsky.social, @tdegaridel.bsky.social and many colleagues!

@climatecerege.bsky.social
@icta-uab.bsky.social
🔗 science.org/doi/10.1126/science.adq8520

You will work on palaeoceanography supervised by Matthieu Paulhac Buisson, me,
@chalkyoceans.bsky.social & Kazuyo Tachikawa.

You will use B/Ca ratios as well as O and C stable isotopes in benthic foraminifera to study past carbon storage dynamics.