Afternoon folks. I'm delighted to announce our manuscript "Speleothem evidence for Late Miicene extreme Arctic amplification" was published online today. Happy reading! @speleoseb.bsky.social @thomasopel.bsky.social cp.copernicus.org/articles/21/...

Precession in action: “Your Zodiac Sign Is 2,000 Years Out of Date” www.nytimes.com/interactive/...

The Royal Society's Dorothy Hodgkin Fellowship scheme is now open for applications. This scheme offers a first step into an independent research career for early career scientists who require a flexible working pattern. Find out more and apply now: #RSGrants royalsociety.org/grants/dorot...

Gypsum! Alena Giesche et al., "Stable isotopes constrain the genesis of Thar Desert gypsum playas and reveal Holocene paleoenvironmental variability in Northwest India" , QSR, doi.org/10.1016/j.qu... Read for free here: authors.elsevier.com/sd/article/S...

Early Warming Over the Southern Ocean During the Last Deglaciation - Zheng, Bauska and Osman - 2025 - GRL agupubs.onlinelibrary.wiley.com/doi/10.1029/... I promise to write a serious thread of what (IMHO as Peisong's advisor) is an innovative analysis. This will have to suffice for now.

The University of Arizona is hiring a tenure-track Assistant/Associate Professor in Physical Geography! Research specialities could include wildfire, climate and water resources, and/or natural hazards, amongst others. Please apply and join us! arizona.csod.com/ux/ats/caree...

The Ray Dolby Centre for Photokeratitis (snow blindness for all you 🐧 and 🐻‍❄️)

@alecluhn.bsky.social missing in Norway www.theguardian.com/world/2025/a...

As someone who routinely melts ice in vacuum (or rather with tiny amounts of air), I can confirm that this is true.

Spoils from the annual @bas.ac.uk library book giveaway.

Nat Geo would kill for legit science-driven adventure like they found in “For Winter,” over content less credibly grounded in pursuit of knowledge +humans pushing limits. Instead they’ve (Disney?) gotten cold feet & deeply disrespected my colleague Ali & her family. defector.com/why-did-nati...

The third mass spectrometer made by Francis Aston on display in the new Cavendish Lab. Probably should have cleaned the source more often but I’ll let it slide given that the guy basically invented mass spectrometry.

only 439 days, 12 hours, 39 minutes and 27 seconds until... www.ipics2026.org

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!

Dreaming of a white Christmas in Cambridge?

I really need to update my job description at @bas.ac.uk to include “repair my Lego models after ice fracture scientists break them”.

Lots of Earth System Modelling (🌍ESM) jobs up for grabs at @bas.ac.uk! 🫧 ESM - Past Carbon Cycle (w/ me and Xu Zhang) 🇦🇶 ESM - Antarctic Sea Ice 🌡️ ESM - Past Extremes 🧊 UKESM Sea Ice Model Developer 💧Research Assistant: Palaeoclimate Meltwater Modelling www.bas.ac.uk/jobs/vacanci...

Bringing a poster to EGU should you: 1) put it in checked luggage? 2) carry it with you? 3) hire a 40-ft. container?

🚨--- New Paper ---🚨 Watch Florian Krauss @iceflow42.bsky.social wield the ¹³C of CO₂ sword across the highest, NATURAL spike in CO₂ and CH₄ of the last 800,000 years. www.pnas.org/doi/10.1073/...

Xenon: not just for ocean heat content reconstructions anymore. www.nytimes.com/2025/05/27/w...

What is this? Wrong answers only.

👏🏽 Congrats to INSTAAR alum Peter Clark for being elected to the National Academy of Sciences! He's a professor @osuceoas.bsky.social & specializes in glaciers, ice sheets, sea level, & paleoclimatology. His INSTAAR advisor was John Andrews. Nice 2016 video on Peter: www.youtube.com/watch?v=Tjve...

Choose Science. Choose Europe. A new Marie Skłodowska-Curie Actions Postdoctoral Fellowships 2025 call is now open. With a budget of €404.3 million, it will support around 1,650 researchers from Europe and beyond. Apply by 10 September → europa.eu/!fBTMgF

🤔 but what's that in dog years?

⚒️ Article: Changes in terrestrial runoff into the Bay of Bengal during both extremely weak and strong Indian summer monsoon phases since the Last Glacial Maximum caused a collapse in marine primary production linked to increased stratification www.nature.com/articles/s41...

stop trying to make FETCH₄ happen! @fetch4.bsky.social

Ice buried 10,000 feet below Greenland makes the headlines for the saddest of reasons. 😔

Lab member Olivia Williams explains how we measure the gases inside ice cores in this video for the National Science Foundation Ice Drilling Program. www.youtube.com/watch?v=i9PQ...

Need micropaleontology slides? I started a company! MicroPaleoWorks.com. If you need slides, hit me up. Prices range from 1.50 to 2.20 each depending on the variety. We can customize with numbering for a fee. We are a #smallbusiness #womenowned #madeintheUSA using #canadianaluminum & #recycledpaper

Definitely sprung.

Does the ocean warm when the AMOC weakens? 🌊 Our new ice-core noble-gas data say it does, at least during the last four deglaciations. A warmer ocean stores a lot of energy but also expands and has lower solubility, which has implications for CO2, sea level, and climate. doi.org/10.1029/2024...

May Adam Sedgwick look upon us with favour. #camfest @cambridgefestival.bsky.social @cambridge-earthsci.bsky.social @bas.ac.uk

Oh wow. A new record of IRD from the Oligocene! Oh wait, not that IRD. IGUANA rafted dispersals. www.nytimes.com/2025/03/17/s...

To honour my colleagues's amazing achievement producing Bedmap3 with a beautiful colour scheme ever, I give you... The worst colour scheme I can think of. Feel the burn in the back of your retinas. Actual data and actually good maps here 👇https://www.nature.com/articles/s41597-025-04672-y

OSU is hiring! Come work at CEOAS - Open rank faculty position and director of the Oregon State Stable Isotope Laboratory. My network is small on Bluesky, please share widely! Reach out if you have questions about living in Corvallis or about CEOAS specifically. jobs.oregonstate.edu/postings/165...

solar symmetry ☀️😀

Applications close on Wednesday (the 19th)! One field season in the (partially) buried mountains of SE Greenland is definitely on the cards. Just have to decide if it's a 300 meter core at red, blue or purple...

Another berg faces the storm! #biopole2 @bas.ac.uk @biopole.bsky.social

Be like Amy King and apply! How it started: Yetis at Heathrow on the way to @osu-ice.bsky.social How it's going: www.nature.com/articles/s41...

Cracking East Anglian sunsets over the past week from our new digs.

and the Lord spake saying "First shalt έ = Aτⁿ Then shalt thou use n = three, no more, no less. Three shall be the number thou shalt use, and the number of the using shall be three. Four shalt thou not use, neither use thou two, excepting that thou then retune and use three. Five is right out!

Having fun with new lecture on: Wendt et al., 2024, Southern Ocean drives multidecadal atmospheric CO₂ rise during Heinrich Stadials | PNAS www.pnas.org/doi/10.1073/... Riddell-Young et al., 2025, Abrupt changes in biomass burning during the last glacial period | Nature doi.org/10.1038/s415...

We have an exciting opportunity for postdoc to join our group at @bas.ac.uk and take part in two big ice core projects: www.beyondepica.eu and @fetch4.bsky.social. Package includes: mugs, stickers, maps, trips to Copenhagen, Grenoble and (maybe) Greenland. bas.ciphr-irecruit.com/applicants/v...

Spring?

paging @magic.bas.ac.uk

Where can we find the oldest ice in Antarctica? With the help of @bas.ac.uk maps from the always amazing @magic.bas.ac.uk, the Geography students are on the hunt.

Tidying up the lab today

This home of American ice core gas scientists in the Antarctica. Severinghaus and Brook glaciers feed into Bender glacier - their (postdoc) advisor. So I can look forward to some little scree field spilling onto Brook Glacier.

🤦 So I just calculated that 6 tons of gold are lost to the deep ocean because of AMOC. So should we shut it down? Check my calcs: Gold = 50 fmol/L; NADW = 18 Sv.

My latest: An inside look at EastGRIP, which drilled through the heart of Greenland's largest and most enigmatic ice stream. Featuring the amazing photography of Lukasz Larsson Warzecha.