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OSU Ice Core Lab

@osu-ice.bsky.social
48 followers 41 following 15 posts

Oregon State University Ice Core and Quaternary Geochemistry Lab. Using ice core samples from glaciers and ice sheets to study past climate. See icecore.ceoas.oregonstate.edu and coldex.org for more info.

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Reposted by OSU Ice Core Lab
John Andrew Higgins @blueicedude.bsky.social · 09/12/2024
⛺ up, 🕳️ down! This 🧊 🏰 should be featured on MTV cribs! #COLDEX.
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OSU Ice Core Lab @osu-ice.bsky.social · 17/08/2026
Many congratulations to Dr. Julia Marks Peterson on the successful defense of her doctoral dissertation!
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OSU Ice Core Lab @osu-ice.bsky.social · 17/08/2026
New AMOC paper headed by Dr. Christo Buizert! Planetary energy budget during abrupt glacial climate events set by Atlantic Ocean heat valve. www.nature.com/articles/s41...
nature.com
Planetary energy budget during abrupt glacial climate events set by Atlantic Ocean heat valve - Nature Geoscience
Variations in Atlantic Meridional Overturning Circulation strength through abrupt Dansgaard–Oeschger events during Pleistocene glacial periods controlled ocean heat content, and heat uptake by the pla...
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OSU Ice Core Lab @osu-ice.bsky.social · 21/07/2026
Triple Isotopes of Oxygen as a Proxy for Carbon Dioxide in Altered Early Pleistocene Ice Core Samples, spearheaded by Dr. Asmita Banerjee! Out now! agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
Triple Isotopes of Oxygen as a Proxy for Carbon Dioxide in Altered Early Pleistocene Ice Core Samples
6 Ma old ice have been found in the Allan Hills Blue Ice Areas, Antarctica, but CO2 concentrations in samples older than 3 Ma are altered Viability of triple isotopic composition of O2 in altered...
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OSU Ice Core Lab @osu-ice.bsky.social · 01/06/2026
New COLDEX preprint headed by lab postdoc Asmita Banerjee: Triple isotopes of oxygen as a proxy for carbon dioxide in altered Early Pleistocene ice core samples essopenarchive.org/doi/full/10....
essopenarchive.org
Triple isotopes of oxygen as a proxy for carbon dioxide in altered Early Pleistocene ice core samples | ESS Open Archive
Traditional ice cores provide invaluable insights into changes in past atmospheric greenhouse gas levels, like carbon dioxide (CO2), and their relationship to climate over the last 800,000 years. Rece...
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OSU Ice Core Lab @osu-ice.bsky.social · 01/06/2026
New COLDEX preprint headed by lab PhD student Abby Hudak: Fidelity and stratigraphy of the Antarctic Allan Hills old ice archive from Continuous Flow Analysis egusphere.copernicus.org/preprints/20...
egusphere.copernicus.org
Fidelity and stratigraphy of the Antarctic Allan Hills old ice archive from Continuous Flow Analysis
Abstract. The Allan Hills blue ice area, East Antarctica, offers a unique opportunity to extend the ice core record beyond 800 thousand years (kyr), with ice as old as 6 million years recently recover...
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OSU Ice Core Lab @osu-ice.bsky.social · 06/04/2026
Without enough snow for our annual lab ski day, the OSU ice core lab hit the Oregon Coast last Friday for some fossil hunting and a delicious seafood lunch.
A group of people jump in unison on a sunny beachFourteen members of the OSU ice core lab sit around a restaurant table smiling
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OSU Ice Core Lab @osu-ice.bsky.social · 02/04/2026
Listen to Julia Marks Peterson's NPR interview about her new paper, which extends ice core CO2 records back 3 million years. @jmarkspeterson.bsky.social www.klcc.org/podcast/oreg...
klcc.org
Cool discovery: OSU ice core study reveals more about climate change
On this edition, we talk with OSU researcher Julia Marks-Peterson, about her study which reveals new information about climate change by evaluating carbon locked in Antarctic ice for more than three m...
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Reposted by OSU Ice Core Lab
OSU Ice Core Lab @osu-ice.bsky.social · 18/03/2026
New Nature paper by PhD candidate Julia Marks Peterson! @jmarkspeterson.bsky.social and her COLDEX collaborators published their findings on atmospheric CO2 and CH4 over the past 3 million years based on measurements of ice cores from the Allan Hills, Antarctica. www.nature.com/articles/s41...
nature.com
Broadly stable atmospheric CO2 and CH4 levels over the past 3 million years - Nature
Blue ice records from Antarctica are used to determine methane and carbon dioxide concentrations over the past 3 million years.
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Reposted by OSU Ice Core Lab
Cristi Proistosescu @cristiproist.bsky.social · 18/03/2026
Getting direct measurements of CO2 from Pliocene-aged ice has been a Holy Grail of climate science! A new paper by @jmarkspeterson.bsky.social provides a record of CO2 going back 3million years(!), with (let's say) intriguing implications for anthropogenic climate change doi.org/10.1038/s415... 1/
doi.org
Broadly stable atmospheric CO2 and CH4 levels over the past 3 million years - Nature
Blue ice records from Antarctica are used to determine methane and carbon dioxide concentrations over the past 3 million years.
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OSU Ice Core Lab @osu-ice.bsky.social · 18/03/2026
New Nature paper by PhD candidate Julia Marks Peterson! @jmarkspeterson.bsky.social and her COLDEX collaborators published their findings on atmospheric CO2 and CH4 over the past 3 million years based on measurements of ice cores from the Allan Hills, Antarctica. www.nature.com/articles/s41...
nature.com
Broadly stable atmospheric CO2 and CH4 levels over the past 3 million years - Nature
Blue ice records from Antarctica are used to determine methane and carbon dioxide concentrations over the past 3 million years.
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Reposted by OSU Ice Core Lab
Oregon State University CEOAS @osuceoas.bsky.social · 16/12/2025
The faces of #CEOAS science! Collect the full set of trading cards at #AGU2025 in New Orleans this week. Oregon State University is at the Exhibition Hall, Booth 303!
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Reposted by OSU Ice Core Lab
David Ho @davidho.bsky.social · 07/01/2026
@agu.org should give the social media person at Eos a raise.
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Reposted by OSU Ice Core Lab
Eos @eos.org · 07/01/2026
Antarctica in the winter? Yeah, it really is that cold 🥶❄️🧪 A postcard from the bottom of the world: eos.org/postcards/an...
eos.org
Antarctic Sea Ice - Eos
Dear Eos: The ocean around Antarctica is critical to ocean circulation, climate, and ecosystems. There, vast quantities of heat and anthropogenic carbon are drawn down from the atmosphere and stored a...
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OSU Ice Core Lab @osu-ice.bsky.social · 06/01/2026
Revisit this radio interview with Dr. Christo Buizert about his research on the potential future collapse of the Atlantic Meridional Overturning Circulation (AMOC): www.cbc.ca/player/play/...
cbc.ca
A climate-change disaster scenario could be closer than we think
This week, a group of 44 researchers from 15 countries presented an open letter to the Nordic Council of Ministers, to shed light on the potential collapse of a key ocean current system. The Atlantic ...
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Reposted by OSU Ice Core Lab
Mariana M. 🍉 @deerenoir.bsky.social · 25/11/2025
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...
eos.org
New Lessons from Old Ice: How We Understand Past (and Future) Heating - Eos
Fragments of blue ice up to 6 million years old—the oldest ever found—offer key insights into Earth’s warming cycles. Researchers are using these ancient data to refine models of our future climate.
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Reposted by OSU Ice Core Lab
Oregon State University CEOAS @osuceoas.bsky.social · 08/12/2025
A team of #NSF Center for Oldest Ice Exploration #COLDEX scientists recently found 6 million year old ice in Antarctica. That's old ice! Air bubbles trapped inside this #ice provide an unprecedented view of Earth's past #climate. Read the paper in PNAS: www.pnas.org/doi/10.1073/...
pnas.org
Miocene and Pliocene ice and air from the Allan Hills blue ice area, East Antarctica | PNAS
Antarctic ice cores provide a unique archive of Earth’s atmosphere and its largest extant ice sheet. The oldest continuous ice core extends back 80...
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Reposted by OSU Ice Core Lab
Olivia L. Williams (she/her) @oliviawilliams-geo.bsky.social · 06/01/2026
I had a great time presenting my ice core research at the American Geophysical Union fall meeting last month in NOLA! #AGU25
Olivia stands in front of her conference poster, which is titled "Low-Volume Noble Gas Measurements to Detect Melt Layers in Ice Cores: Preliminary Results."
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OSU Ice Core Lab @osu-ice.bsky.social · 22/07/2025
See interviews from lab alum Ben Riddell-Young and PI Ed Brook in this Mother Jones article on the future of ice core research.
motherjones.com
The critical research that unlocks our climate's past and future may be on thin ice
“There’s questions that we don’t know we should be asking yet.”
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OSU Ice Core Lab @osu-ice.bsky.social · 13/04/2025
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...
youtube.com
Unlocking our Climate Past-Extracting Gas from Ice Cores
YouTube video by NSF Ice Drilling Program
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OSU Ice Core Lab @osu-ice.bsky.social · 30/01/2025
New lab account! Please share this post to help us connect with our network. We are a lab at Oregon State University headed by Dr. Ed Brook and Dr. Christo Buizert using ice samples to study past climate. See coldex.org for info on our search for old ice. #science #coldex #oregonstateuniversity
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Reposted by OSU Ice Core Lab
Ocean Opportunities @oceanopportunities.org · 20/08/2024
💼 #Job - Director for Education for the COLDEX NSF Science and Technology Center with Oregon State University 🗺️ Where: Corvallis, Oregon, USA ⌛ Deadline: August 29 2024 Discover more 👇 jobs.oregonstate.edu...
jobs.oregonstate.edu
Director for Education for the COLDEX NSF Science and Technology Center
The College of Earth, Ocean and Atmospheric Sciences is seeking a Director for Education for the Center for Oldest Ice Exploration NSF Science and Technology Center. This is a full-time (1.00 FTE), 12-month, professional faculty position. This position provides overall management of COLDEX educational programs including facilitating the logistics of programs delivered by partner institutions, working with COLDEX faculty to recruit students and post docs, leading the COLDEX research experience for undergraduates (REU) program, recruiting and supporting students and participants from diverse backgrounds, communicating with COLDEX participants about educational activities, working with the COLDEX evaluation team to track progress toward COLDEX educational goals, providing and facilitating mentorship for the COLDEX student and post doc community, and contributing to annual and other progress reports and to COLDEX meetings.
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Reposted by OSU Ice Core Lab
Polar Science Early Career Community Office @polarsecco.bsky.social · 11/06/2024
Hi y'all! Are you interested in learning more about various #polar #careers outside of academia!? If yes, you're in luck!! PSECCO and COLDEX partnered on creating this 'Polar Careers Outside of Academia' profiles resource for all to explore: psecco.org/polar-career...
psecco.org
Polar Careers Outside Academia | Polar Science Early Career Community Office
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Reposted by OSU Ice Core Lab
Christian Elliott @christianelliott.me · 06/12/2024
The NSF COLDEX ice coring team is set up for another field season in the Allan Hills, a windswept region of eastern Antarctica where scientists have found 6-million-year-old ice. Locked inside are the secrets to understanding our ancient climate. I covered COLDEX last year for @sciam.bsky.social:
scientificamerican.com
Inside the Race to Find Earth's Oldest Ice
A global race is on to drill for the oldest known layers of Antarctic ice so researchers can peer back in time to a warmer climate to better understand the planet’s hotter future
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John Asbury @johnasbury.bsky.social · 14/12/2024
I interviewed a scientist in Antarctica this week, as one does. The COLDEX project is looking for the world’s oldest ice and the history of climate change. "When I think about Antarctica, it’s all about sea level rise, and Western Antarctica is the heart of the beast and the crux of our problem.”
newsday.com
Huntington man braves Antarctica to research how ancient ice reveals Earth's climate history
Jacob Chalif is part of a three-month mission with COLDEX — the Center for Oldest Ice Exploration — searching to record the Earth's climate history through ancient ice.
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Reposted by OSU Ice Core Lab
Oregon State University CEOAS @osuceoas.bsky.social · 12/12/2024
Oregon State University & CEOAS folks at #AGU24 #NSFFunded @agu.org @mklampe.bsky.social
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Reposted by OSU Ice Core Lab
Erin Pettit @exploreice.bsky.social · 18/12/2024
Kayak and learn #glaciology - Applications for Girls* in Icy Fjords are open now for 16/17 year olds. Please share with teachers, youth in your community! With support from @osuceoas.bsky.social
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