New paper(s) alert! Check out @agu.org Palaeoceanography & Paleoclimate. Including our piece on best practices going forward for d11B-CO2 reconstructions. agupubs.onlinelibrary.wiley.com/doi/10.1029/... including @case4climate.bsky.social, @michaelhenehan.bsky.social,... @eleniwater.bsky.social.

Reminder - the exoCean lab is hiring

Still time to apply:

The lab keeps evolving and we are THRILLED! More equipment is about to arrive, some more is planned, and we feel super excited about our different projects. Also really… what a view when the doors are open, one can even see the emblematic « sainte victoire » behind the trees!

Slowly but surely the lab we had in our heads with @sulpis.bsky.social and @chalkyoceans.bsky.social is coming to life. High pressure incubators are about to come, more microscopy equipments… Such a nice adventure has started!

#Lecturer position in #EarthSciences 👇🏼@openuniversity.bsky.social Please apply, if interested 🙏🏼 Closing Date: 20 October 2025 Contract Type: #Permanent Fixed Term Contract/End Date: Not Applicable jobs.open.ac.uk/job/Lecturer...

Come work in our lab! All the usual awesome things apply about doing exciting science, plus this one might save the world! @sulpis.bsky.social hiring a 2 year position to observe and model deep ocean processes using high-pressure reactors. *Goes to gather a bunch of forams to be dissolved* 😅

Sediments dissolving on the seafloor can act as a long term sink for carbon dioxide emissions. We're bringing it to the lab, deep sea research from the comfort of Southern France! Postdoctoral position for 2 years available working with @sulpis.bsky.social in the @exoceanlab.bsky.social.

Nice comparison of foram-coating derived and sediment derived #Ndisotopes in the Mediterranean from Kazuyo Tachikawa and others @climatecerege.bsky.social and @cerege.bsky.social. Small cautionary tale for unrestricted use (of sediment), but normally it works! www.sciencedirect.com/science/arti...

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Watch this space for so much new exciting science from the new influx of Ceregiens. @cerege.bsky.social

Day 4, #ICP15, next up @antacl.bsky.social talking about long term evolution of South Asian Summer Monsoon. Congratulations to @antacl.bsky.social for starting her new position soon 🥳 @climatecerege.bsky.social @cerege.bsky.social

Future (and past) @climatecerege.bsky.social superstar @antacl.bsky.social giving her #ICP15 talk now. Modelling the Indian monsoon in the Miocene, and some important praise to the organisers for their diverse programme of speakers. Bravo!

This week, I am grateful to be at the International Conference on Paleoceanography #ICP15. Great start this morning with a tour of #Boron isotopes & #Cenozoic CO₂ reconstructions from @eleniwater.bsky.social & @chalkyoceans.bsky.social. Nice to see all the paleoceanographers in #Bengaluru!

Thank you so much for the invitation #ICP15. Diversity makes us stronger, and the data shows it! ⏩🏳️‍🌈

Next up @chalkyoceans.bsky.social improving Neogene CO2 reconstructions - proxies, calibrations, morphotypes and much more.. 🙏🏼

A new paper from our team, and the opportunity to introduce Jaime Suarez @jysuarezibarra.bsky.social , postdoc in our micropaleontology group!

✨ Honored to witness the inauguration of the BISSAP lab at UCAD — a new lab for ecosystem monitoring in Senegal! 🌍🔬 Huge congratulations to everyone involved! @climatecerege.bsky.social @ird-fr.bsky.social #ScienceForAll #UCAD #IRD #Biodiversity #Africa #BISSAP www.ird.fr/inauguration...

🚨New paper alert🚨 Using the mean and 95th percentile of cross-sectional area measurements, we documented ecological and taphonomic imprints on the test size variation of planktonic foraminifera. @soniachaabane.bsky.social @chalkyoceans.bsky.social @tdegaridel.bsky.social doi.org/10.61551/gsj...

I have a fully funded open #position for a PhD student/postdoc in marine #biogeochemistry. As part of the MARBEDS project, we are seeking someone to study seafloor fluxes and their interactions with microbial communities in biodiversity hotspots. 🧪⚒️🌊 Contact me if you want more details.

🏅 Congratulations to Isabelle Basile-Doelsch, Research Director at INRAE/CEREGE, for winning an @erc.europa.eu Advanced Grant for her NanoCLICS project. Learn more about her project: www.cerege.fr/en/nanoclick...

New job alert! We just opened a tenure-track Junior professor Chair at @cerege.bsky.social focused on the study of the critical zone in the Mediterranean and intertropical Africa. More info on the IRD website here: en.ird.fr/tenure-track... Contact me if you are interested!

It's #pride month, and whilst I'm still in Bermuda, far away from my regular life I'm reflecting on the world for LGBTQ+ folk, which seems to have gotten just a little bit worse this year... But we're not going away, and not giving up on making things better. 🏳️‍🌈🏳️‍⚧️

Mass Spec xkcd.com/3094/

Every night is a disco for our foraminifera in their respiration chambers @biosstation.bsky.social with @case4climate.bsky.social @chalkyoceans.bsky.social @juliemeilland.bsky.social 🧪⚒️🌊🪸

Fieldwork needs fieldwork hair, and like this the forams can't see me coming in the turquoise waters around Bermuda. 🧜🏼‍♂️

Back in France, exoCean is still working hard... 🐚✨ A tiny miracle in the lab! For the first time in our team’s history, we’ve successfully harvested pteropod egg sacs and captured the moment of their eclosion on film.

Excited to have hundreds of baby Forams in the lab after the first towing - different species - different behaviors! @exoceanlab.bsky.social @chalkyoceans.bsky.social

We then collect the live plankton and try to keep them alive long enough to get to the lab. There we can look at how they respond to different conditions in a controlled setting. (And if you know @chalkyoceans.bsky.social, you know there will be boron involved).

Thank you @biosstation.bsky.social for hosting us. We're so excited to be here!

Tom Chalk, an isotope geochemist (interested in the tiny variations in mass of chemical elements), specialising in boron, the 5th element. I am the Principal Investigator of the ERC project ForCry and CNRS researcher, interested in the natural history and unnatural future of Earth’s climate.

Find out what we're doing at @climatecerege.bsky.social and further abroad here. Follow our lab group @exoceanlab.bsky.social here for more. So happy to be in the same place as @juliemeilland.bsky.social and @sulpis.bsky.social to science!

Interested in doing a PhD with living planktonic foraminifera? Come work with us! Check our PhD subject and get in touch! @tdegaridel.bsky.social

Ces dernières années, on remplace le bitume des rues de Paris par des fleurs, des arbres et des buissons. Et ça change tout : cela rafraîchit notre ville et ramène peu à peu toute une biodiversité urbaine d’insectes et d’oiseaux. Si vous souhaitez que ça continue, ça se joue aujourd’hui ! ⤵️ 1/6

📢 Today, CEREGE and other research laboratories from the Technopole de l’Arbois mobilized for research and academic freedom as part of the #StandUpForScience movement. Together, let’s defend free and independent science!

Are you a PhD or Masters student in Paleoclimate looking to learn and network with your community? Excited to announce that applications to USSP 2025 are now open until 6th March. 🦖⚛️🪨🌊🔬🧑🏽‍💻 Please share! 🤩

🚨Postdoc Offer🚨 Fully funded 2-year research position at Paris or Aix-en-Provence: your choice! The project aims to predict OAE feedbacks and environmental impacts in the ocean interior, in particular at the seabed. See job ad : nuage.osupytheas.fr/s/4zMfHFZ8S2... Please share widely! ⚛️

We're hiring @cerege.bsky.social an engineer for a short term contract, to work with us on the development of a new prototype of an automated sorting system, including XRF. Part of @agencerecherche.bsky.social #IMAGINE2 equipex+ project. Thanks for sharing widely ! docs.google.com/document/d/e...

Can we (and by we I mean foraminifera) migrate our way out of the climate crisis? It doesn't look like it. Massive study by @soniachaabane.bsky.social with @tdegaridel.bsky.social, @juliemeilland.bsky.social, @sulpis.bsky.social, me and others! www.nature.com/articles/s41...

🌊📉 New Paper Alert! "Migrating is Not Enough for Modern Planktonic Foraminifera in a Changing Ocean" published Open Access in Nature🧵👇 Me & @tdegaridel.bsky.social @juliemeilland.bsky.social @sulpis.bsky.social @chalkyoceans.bsky.social and others www.nature.com/articles/s41...

Check our last study about planktonic foraminifera, confucted by @soniachaabane.bsky.social, together with @chalkyoceans.bsky.social, @sulpis.bsky.social and other great researchers! In today’s climate, for foraminifera, migrating is not enough www.nature.com/articles/s41...

A great piece in the Washington Post on the recent paper of @soniachaabane.bsky.social on the response of planktonic foraminifera to ocean warming. A must-read! Also with @tdegaridel.bsky.social, @sulpis.bsky.social, @chalkyoceans.bsky.social www.washingtonpost.com/climate-envi...

I am absolutely delighted that all my favorite climate scientist colleagues from social media are here on bluesky now. You will not regret following a single one of these smart and committed human beings who are fighting for a better future for us all.

New paper out with the @Arclim group on Large-scale culturing of G. bulloides from cold waters - check it out! academic.oup.com/plankt/advan... @thefosterlab.bsky.social , @chalkyoceans.bsky.social, Adele Westgård, Freya sykes (Lead author), Mohamed Ezat and co! Congrats Freya!

New culture trip, new forams going strong in the lab @climatecerege.bsky.social thanks to @chalkyoceans.bsky.social, @tdegaridel.bsky.social, @soniachaabane.bsky.social, the crew of the #antedon2 and a lot of other supportive colleagues!

🚨🚨🚨 Fully-Funded PhD Project 🚨🚨🚨 Interested in shells, corals or plankton? Ever wondered how they form? Come join our group @Cambridge on this @leverhulme.bsky.social project! A fun combination of culturing, geochemistry, physiology and modelling. biomin.esc.cam.ac.uk/job/biomin/l...

Truly remarkable work constraining atmospheric CO2 content over the past 65 million years. This level uncertainty, if it is to be believed, means that we know atmospheric CO2 radiative forcing 50 million years ago to +-1 W/m2. www.science.org/doi/10.1126/...

New paper by Elwyn de la Vega, @chalkyoceans.bsky.social and lots others (including me!) testing the accuracy of boron isotopes as a proxy for atmospheric CO2. Spoiler - it looks good!! cp.copernicus.org/articles/19/...

For all your Cenozoic #CO2 plotting needs (at least for now). A super worthy project and an immense task to put all of this together. Great community effort and a nice summary to reference. Importantly, ~all primary authors of the datasets will get a citation! 🧪🔬📚📉 www.science.org/doi/epdf/10....

So happy to share the news that my ERC CoG project #HighBorG has been funded! Millennial scale carbon/CO2-climate reconstructions and Earth system modelling during the Eocene, Oligocene, and Miocene, new methods and archives, exciting times ahead at GEOMAR!