Chris D Clark
chrisdclark.bsky.social
Chris D Clark
@chrisdclark.bsky.social

Geomorphology and palaeo glaciology, ice sheets, mountains and stuff

Environmental science 39%
Geology 32%
📢 PhD opportunity at Newcastle University!

👉"Reconstructing past ice-sheet retreat and ice-ocean interactions from marine sediment cores".

This project will use new marine sediment cores to constrain the timing and drivers of past ice-sheet retreat.

More details: iapetus.ac.uk/studentships...

At least half a dozen

Reposted by Chris D. Clark

Reposted by Chris D. Clark

Reposted by Chris D. Clark

New paper out today led by Martin Siegert with about 40 others where we argue that some of the proposed Polar #Geoengineering schemes for ice sheets, sea ice and solar radiation are potentially dangerous and unethical.

www.frontiersin.org/journals/sci...
Frontiers | Safeguarding the polar regions from dangerous geoengineering: a critical assessment of proposed concepts and future prospects
Fossil-fuel burning is heating the planet with catastrophic consequences for its habitability and for the natural world on which our existence depends. Halti...
www.frontiersin.org

That was a fab symposium on ice streams, thank you and very well done to the hosts. We also had dinner in a castle and got see Hadrian’s wall and drumlins and sheep and joke about Barnard Castle, oh and some very nice pubs
Reflecting back on how enjoyable it was to host the @igsoc.bsky.social Symposium here at @geogdurham.bsky.social. A big thank you to everyone who attended, presented and contributed to organisation! It was lovely to see so many friendly faces and to hear about some fantastic glaciological science! ❄️

Reposted by Chris D. Clark

Reflecting back on how enjoyable it was to host the @igsoc.bsky.social Symposium here at @geogdurham.bsky.social. A big thank you to everyone who attended, presented and contributed to organisation! It was lovely to see so many friendly faces and to hear about some fantastic glaciological science! ❄️

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Have fun. And me too as well

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And @chrisdclark.bsky.social somehow I missed adding you to this starter pack: go.bsky.app/CQzthwb That is now rectified!

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If you’re in East Anglia (UK) and a bit of a Quaternary geek, check out “The Stone Index” by Mike Burgess, where he has compiled a incredible list of glacial erratics, standing stones and other “odd boulders” (1/1).
www.hiddenea.com/stoneindex.htm
NORFOLK
www.hiddenea.com

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🚨New paper alert!🚨 Led by the fabulous @mmglacialgeo.bsky.social and Ellie Abrahams. We automated subglacial bedform detection 🧊🪨 Check it out to learn all about the wonders of 🛏️bed🛏️ 🔎finder🔍! doi.org/10.1111/bor....
Automatic identification of streamlined subglacial bedforms using machine learning: an open‐source Python approach
You have to enable JavaScript in your browser's settings in order to use the eReader.
onlinelibrary.wiley.com

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Very take it or leave it on the 4:30am start

But really excited to be back in Sheffield and just about ready to give a seminar on modelling subglacial hydrology in Finland and Greenland

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I’m thrilled to bits to have been awarded the Richardson Medal by @igsoc.bsky.social. Thanks so much to all my wonderful colleagues and especially to those who nominated me! You’re all so kind. www.igsoc.org/about/awards...
Bethan Davies (2024) | IGS
www.igsoc.org

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At University of Cambridge, I was asked if I maintain a sense of optimism about climate change. My answer:

Yes, because unlike cancer, where we often don't know the cause and don't have a cure, we know exactly why global temperatures are rising and how to stop it. We just need the political will.

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Want to come and do a PhD in Palaeo Glaciology and numerical ice sheet modelling at Sheffield Hallam? @niallgandy.bsky.social, myself and Bob Jeffery are advertising a fully funded PhD Studentship. The closing date for applications: 17:00 (BST) on Thursday 17th April 2025. tinyurl.com/2ab5mdhf
Sheffield Hallam University - Graduate Teaching Assistantship (GTA) Scholarships in the Institute of Social Sciences: Constraining the Behaviour of the British-Irish Ice Sheet over Multiple Glacial Cy...
PhD Project - Sheffield Hallam University - Graduate Teaching Assistantship (GTA) Scholarships in the Institute of Social Sciences: Constraining the Behaviour of the British-Irish Ice Sheet over Multi...
tinyurl.com

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Back to civilisation after another great field campaign to Hofsjökull with the DRUMICE project. We managed to collect over 100km of radar lines over the 2 and a half day weather window. Will put together this quick little video. Thanks to NERC UK-Iceland collaboration grant for making this happen!

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I'm at UNESCO tomorrow. On a panel for about glacier preservation. Isn't that how everyone celebrates their birthday?
You can witness the rare event of me wearing a suit by registering here:
unesco-org.zoom.us/webinar/regi...
Video Conferencing, Web Conferencing, Webinars, Screen Sharing
Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom ...
unesco-org.zoom.us

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Icebergs? The size of a city? 90 miles from the UK? Must be a joke, right?

No! Our new paper in @natcomms.nature.com shows massive tabular icebergs broke off the UK in the last ice age before the UK’s ice shelves disintegrated from climate warming.

🧵

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

@bas.ac.uk
Change in iceberg calving behavior preceded North Sea ice shelf disintegration during the last deglaciation - Nature Communications
Massive tabular icebergs broke off of the UK during the last ice age. The widespread break-up of the ice shelves which produced these giant icebergs can be traced to around 18,000 years ago, and likel...
www.nature.com

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And lol I know that last point would be the deal breaker for the Elseviers and the Wileys

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Closing the books on another fantastic EGU general assembly - what a week! Thanks to everyone for bringing your science to EGU, and to the conveners and other volunteers for organizing it all!

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Still exploring old paperwork. Here’s a funny thing: apparently I published this paper in 1987, but forgot to add it to my CV so it was never mentioned in any job applications, promotions etc… a forgotten paper! Well, belatedly I’ve put it in the pile now! I wonder what else I did and then forgot.

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Aiguiile Verte and (former) Mer de Glace bed from La Flégère this morning! 😍

Here are the biggest glaciers of the rest of your life! 🙃

📷 @lomdumtblanc.bsky.social

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In light of high temperatures and recent collapses in the Alps, we're resharing our 2022 piece from geomorphologist Ludovic Ravanel on mountain stability in the Mont Blanc Massif.

Despite being 3 years old, it contains evergreen advice on warning signs of collapse and areas to avoid in the heat.
Mountain Stability in the Mont Blanc Massif - Summer 2022
Mountain Stability in the Mont Blanc Massif -  Summer 2022 What follows is a summary of a discussion/Q&A that was organised by IFMGA guide Martin Elias on behalf of Chamonix Experience in early August...
tinyurl.com
Simms et al present an investigation of a MIS 3 (~50 ka) raised shoreline deposit in northwestern Scotland. Since it is located above present day sea level, if the age is correct, it implies a significant MIS 4 glaciation of Scotland. ⚒️🧪🦣 doi.org/10.1002/jqs....
Was Scotland covered by an ice sheet during Marine Isotope Stage 4? Insights from the pre‐Last Glacial Maximum marine terraces of northwest Scotland
Raised shorelines provide important constraints on past sea levels, glacial isostatic adjustment (GIA), and rates and directions of vertical crustal motion. Although most raised shorelines across NW ....
doi.org

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Reposted by Chris D. Clark

Scandinavian Ice Sheet chronology PhD opportunity - deadline to apply 21 July - with Karol Tylmann at University of Gdańsk

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📣Friends of the Quaternary!!📣

🐦Early bird registration is open for the upcoming Nordic Geological Winter Meeting in Turku, Finland (13-15 Jan 2026) ngwm2026.fi

Please consider submitting an abstract to our session on "Quaternary palaeoglaciology and palaeoclimate".
🦣❄️🐚
It will be awesome!

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The river level has already started to rise behind the dam in Blatten! 🌊

A lake is underway... 😨

To 'mitigate' flooding hazard in the valley, the Ferden dam lake, located 6 km downstream has been emptied.

📷 SRF
Upstream and downstream view of the deposit! 🧊🌊

Massive... 😱😱😱

www.letemps.ch/suisse/valai...