Tom Chalk
banner
chalkyoceans.bsky.social
Tom Chalk
@chalkyoceans.bsky.social
Dr Chalk, destined to be a researcher in carbonates, CO2, & ocean-climate links, resident isotope geochemist @exoceanlab.bsky.social,
@cerege.bsky.social, France.
Equalist, technologist, environmentalist. #climatevegan.
🇬🇧🤝🇲🇫. 🏳️‍🌈 but always with the 🏳️‍⚧️.
Thank you to everyone who came to our workshops & @pages-ipo.bsky.social meeting, contributed to the special issue, the community at large who use our CO2 reconstructions, and of course our funders @erc.europa.eu , @ukri.org, @dfg.de and @leverhulme.ac.uk! pastglobalchanges.org/publications...
October 9, 2025 at 12:59 PM
We look at the history and future of d11B-CO2 reconstructions, as well as their major limitations throughout the last 70 million years. I hope this will be a great resource for boron people new and not new, students and not students! Reach out if you want to know more.
October 9, 2025 at 12:59 PM
He doesn't just do the lab either, he's happy to brave the waves and come help us sample in the field. Go Maxime! (Here in the middle of the Atlantic, May 25)
October 2, 2025 at 10:25 AM
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!
September 4, 2025 at 4:41 AM
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.

🏳️‍🌈🏳️‍⚧️
June 1, 2025 at 5:44 PM
Fieldwork needs fieldwork hair, and like this the forams can't see me coming in the turquoise waters around Bermuda. 🧜🏼‍♂️
May 20, 2025 at 12:33 PM
We also project conditions into the next century. Contrary to some people's (my, not Sonia) initial thoughts, that high latitudes are the most vulnerable to climate change, it is foraminifera in low latitudes which will move outside of known foraminifera thermal and saturation niches first.
November 14, 2024 at 2:10 PM