🚨 New manuscript! 🚨 We use speleothem calcium isotopes and Mg/Ca to reconstruct rainfall amount. Turns out central Vietnam was 50 % drier during the LGM 🤯. Climate models agree but most underestimate rainfall change. www.sciencedirect.com/science/arti...

What’s it like doing fieldwork in Antarctica? 🥶 Sarah Shackleton and @blueicedude.bsky.social from @princeton.edu can answer that. They just found a 6-million-year-old ice core—a key piece to improve our current climate models! My story for @eos.org eos.org/articles/new...

New research from John Higgins @blueicedude.bsky.social & Sarah Shackleton @princeton.edu, comments from Lidia Ferri, story by Mariana Mastache @deerenoir.bsky.social.

⛺️ up! Drill down! Just another day in paradise looking for Earth’s oldest ice.

We've got a new record for the oldest air ever discovered. 💨 Scientists led by Princeton's @blueicedude.bsky.social and Sarah Shackleton uncovered air trapped in ice that is 6 million years old.

🥶 Led by Princeton's @blueicedude.bsky.social and Sarah Shackleton, a team of scientists has discovered the "oldest directly dated ice and air" on the entire planet in Antarctica.

The natural weathering of ALL THE ROCKS in the world removes almost 1 billion tonnes of CO₂ from the atmosphere every year. Enhanced rock weathering is an attempt to use a minuscule fraction of ALL THE ROCKS to remove many times more CO₂.

To be fair trilobites were around a lot longer than humans (250 million years give or take) and were wiped out in the by a great global catastrophe than has some parallels to anthropogenic climate change. They also preserve 😍 fossils. Not so niche to me!

Today those of us funded by @NSF received this memo. Perhaps the most concerning statement: “Therefore, all review panels, new awards, and all payments of funds under open awards will be paused as the agency conducts the required reviews and analysis.”🧪

Had a great visit to the summit of Mount Washington in NH this week to meet with Observatory staff & discuss science & education efforts we are working on together. Not a bad day for some windy weather as well! Peak gusts hit 86 mph. Check out this worthy organization! 🧪 mountwashington.org

Could your next job be in Antarctica? We're looking for carpenters, chefs, electricians, plumbers, plant operators and more to work at our research stations. These are jobs like no other, in one of the most beautiful places on Earth. ✅ Vacancies bas.ac.uk/vacancies 💡 Job alerts ow.ly/fWsu50UJHBP

An ice and rock core drilled 2.8 km deep on the antarctic ice sheet may tell us about the climate record for 1.2 million years - and perhaps even info on the planet going back 2.8 million years. www.sciencealert.com/oldest-unbro...

Agree!

Super excited to share our latest on CO2’s role in geological climate change! Using boron isotopes in ~300 million year old brachiopod shells, we show that rising CO2 from volcanic emissions drove a profound change in climate that ended the Late Palaeozoic Ice Age ⚒️🧪🌊 www.nature.com/articles/s41...

ICE-DAY! Cool layers & melt/refreeze features in ice cores extracted from Thwaites Glacier, Antarctica. We drilled thru ice to collect subglacial bedrock to determine the last time the bedrock was exposed to the sun using cosmogenic nuclide exposure dating. Also, a beautiful ice crystal! 🧪❄️

Delighted to see that MBA Trustee Professor Rosalind Rickaby OBE FRS has been recognised with an OBE in the New Year's Honours List! Ros has been honoured with this high accolade for her services to Biogeochemistry.

🧪🌋 Apparent mystery resolved : early 1800's global cooling was suspected to be cause by an unknown eruption. But it appears that such eruption has been identified. www.pnas.org/doi/full/10....

Do this especially if you’re at a place that can nominally afford to invest in creative folks with big ideas. Most academic institutions have a balancing act that doesn’t give a ton of flexibility on hiring (ie we have classes to teach), but some do! They should do better!

To all your ECRs out there….those who don’t do write reviews! Be a doer. 🧪!

Tim Lenton is a friend, and it saddens me that he found our perspective saddening rather than constructively critical. But: despite his and colleagues efforts to “clarify what they meant by tipping points”, those efforts *have not worked* over the last 20 years, and we need to deal with that.

⛺ up, 🕳️ down! This 🧊 🏰 should be featured on MTV cribs! #COLDEX.

⛺ up, 🕳️ down! This 🧊 🏰 should be featured on MTV cribs! #COLDEX.

So many drawers, each filled with treasures

Sad to not be down in 🇦🇶 with @coldex.bsky.social drilling Earth's oldest ice, enjoying ⛺ life and the 😍 scenery. Congrats team!

Personally I have never found the ‘tipping point’ framework helpful for thinking about climate change or how society responds to it. Bob’s paper on this is illuminating.

Happy Isotope Day everyone! 🥳On this day in 1913 Nature published Federick Soddy's paper "Intra-atomic Charge" www.nature.com/articles/092... in which he introduced the term "isotope" (coined after a dinner conversation in Glasgow with Margaret Todd the classics scholar). how will you celebrate?🧪⚒️🌊

Today my amazing colleague, lab mate, and partner @oceanicandrea.bsky.social officially became the first female Professor of Earth and Environmental Sciences @uniofstandrews.bsky.social. Let’s make sure it doesn’t take another 611 years to get the next ⚒️🧪🌊👩🏻‍🔬

@altmetric.com testing...testing...testing... www.science.org/doi/abs/10.1... (old paper)

Stellar Sea Lions on Paleocene pillow basalts of the Resurrection Peninsula Ophiolite, near Seward Alaska. We now know this sequence is c 57 Ma and affiliated with the Orca Group.

Here is a glacier crevasse called a bergschrund. Unlike the glacier water conduit on my previous video, this “cave” is caused by tension that fractures the ice between ice flowing downhill & stagnant ice resting next to the bedrock valley wall that resists the flow of ice.🥼❄️

Notre Dame Cathedral has been closed to the public since a fire damaged the landmark in April 2019.

Ever wonder what it’s like to live in Antarctica? Scientist Elin Darelius spent 70+ days there, including 5 weeks camping on the ice. In this interview she shares her experience and talks about the research at Troll station & Fimbul Ice Shelf!🧪🌊 #Antarctica #Science #Research

Hello World, I am back and excited to (re-)connect with you! And we are just in time to start our 24 easy #KitchenOceanography experiments on oceanic processes, all using only household items, for a fun way to explore ocean physics. Find all of them here: mirjamglessmer.com/24daysofkitc...

Today, Wally Broecker would have been 93. He was obsessed with abrupt climate change that arrives suddenly and dramatically. He likened the cli­mate system to an "angry beast", and said we shouldn't poke it (i.e., keep emitting CO₂) because we don't know how and when it'll react. We should listen.

Another example why the world needs more geologists and geoscientists. Another route for geology to save the world and a great way to make a job market for those leaving the oil and gas industry 🧪⚒️ www.nature.com/articles/d41...

Exciting to see a new, community-run, and Diamond Open Access journal launching for geochemists (Advances in Geochemistry and Cosmochemistry). Free to read and free to publish! They have assembled a great team of editors too! (www.agcj.org)

🧵These "Sputnik" plots of global ocean properties are now ubiquitous. Have you ever wondered who first made them? Wonder no more. 1/3

So far, amber deposits (fossil resin) have been described from every continent except Antarctica. Until now... First discovery of Antarctic amber 🏺🧪 www.cambridge.org/core/journal...

Today, I’m showing one of the supraglacial lakes that drained on the Juneau Icefield. After the lake drained, the ice lifted up due to the significant water stored at the bed. Here is a video of me retrieving one of the water pressure transducers that we used to measure water depth in the lake.

OK, so I am living in Iceland 🇮🇸 right now and some major shit went down yesterday that I have to tell you about. 🧵

Welcome new followers! Geochemist here interested jn the history of the 🌎 as told in 🪨 and 🧊. Co-lead of an NSF funded effort to find the oldest 🧊 on 🌎. Want to know more?! Follow along with our field team this season! 🧪 coldex.org/blog/field-t...

Welcome new followers! Geochemist here interested jn the history of the 🌎 as told in 🪨 and 🧊. Co-lead of an NSF funded effort to find the oldest 🧊 on 🌎. Want to know more?! Follow along with our field team this season! 🧪 coldex.org/blog/field-t...

Woe is the stuffy who dares be cuter than 🐕‍🦺. Not so cute without an 👁️ or a 👃 are we Mr Fennec 🦊!

We should redesign cities for autonomous kids, not autonomous cars.

Ask Lord Kelvin about the age of the Sun and Earth! Model schmodel. 👀 rule!

bug fact: grashoppers already existed at least 100 million years before the first grass

New to Bluesky, Im trying to improve my science posts! Science of the day comes from the Juneau Icefield Research Program! Here we installed water pressure transducers to monitor glacier lake drainage impacts on glacier movement. #alaska #glaciers #climate

Fuel cache. Allan Hills deep field camp. Nov 2023