Take a journey through time down a new NSF COLDEX ice core borehole just completed by the team in #Antarctica!
If you’re at #AGU25 stop by the COLDEX booth in the Exhibit Hall to talk to COLDEX team members from across the 15-institution center funded by NSF! @agu.org Follow us on IG @ coldex_stc
If you’re at #AGU25 stop by the COLDEX booth in the Exhibit Hall to talk to COLDEX team members from across the 15-institution center funded by NSF! @agu.org Follow us on IG @ coldex_stc
December 14, 2025 at 11:59 PM
Take a journey through time down a new NSF COLDEX ice core borehole just completed by the team in #Antarctica!
If you’re at #AGU25 stop by the COLDEX booth in the Exhibit Hall to talk to COLDEX team members from across the 15-institution center funded by NSF! @agu.org Follow us on IG @ coldex_stc
If you’re at #AGU25 stop by the COLDEX booth in the Exhibit Hall to talk to COLDEX team members from across the 15-institution center funded by NSF! @agu.org Follow us on IG @ coldex_stc
PNAS: Six-million-year-old ice discovered in Antarctica offers unprecedented window into a warmer Earth via our NSF COLDEX & US Antarctic Program. ❄️ www.pnas.org/doi/10.1073/...
October 28, 2025 at 9:44 PM
PNAS: Six-million-year-old ice discovered in Antarctica offers unprecedented window into a warmer Earth via our NSF COLDEX & US Antarctic Program. ❄️ www.pnas.org/doi/10.1073/...
NSF COLDEX is supported by the National Science Foundation, US Antarctic Program, NSF Ice Drilling Program, and thousands of people including the interagency Operation Deep Freeze supporting US science in Antarctica for 70 years.
December 15, 2025 at 12:01 AM
NSF COLDEX is supported by the National Science Foundation, US Antarctic Program, NSF Ice Drilling Program, and thousands of people including the interagency Operation Deep Freeze supporting US science in Antarctica for 70 years.
How do we know old Antarctic ice is old? Got a few minutes?
Atmospheric argon isotope dating: a process discovered last century here at UMN (Al Nier) & perfected by scientists at Princeton (Bender).
This is COLDEX science funded by NSF and conducted in university communities nationwide.
Atmospheric argon isotope dating: a process discovered last century here at UMN (Al Nier) & perfected by scientists at Princeton (Bender).
This is COLDEX science funded by NSF and conducted in university communities nationwide.
May 15, 2026 at 7:39 PM
How do we know old Antarctic ice is old? Got a few minutes?
Atmospheric argon isotope dating: a process discovered last century here at UMN (Al Nier) & perfected by scientists at Princeton (Bender).
This is COLDEX science funded by NSF and conducted in university communities nationwide.
Atmospheric argon isotope dating: a process discovered last century here at UMN (Al Nier) & perfected by scientists at Princeton (Bender).
This is COLDEX science funded by NSF and conducted in university communities nationwide.
On a personal note, I remember taking a paleoclimate class from Michael Bender nearly 20 years ago and hearing about this new Blue Ice project. This has been a long time coming and great work from the COLDEX team. (nice work @blueicedude.bsky.social!)
9/9
9/9
March 18, 2026 at 6:05 PM
On a personal note, I remember taking a paleoclimate class from Michael Bender nearly 20 years ago and hearing about this new Blue Ice project. This has been a long time coming and great work from the COLDEX team. (nice work @blueicedude.bsky.social!)
9/9
9/9
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.”
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.”
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.
www.newsday.com
December 14, 2024 at 2:17 PM
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.”
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.”
The hunt for old ice recently exceeded expectations when COLDEX the collaborative NSF-funded research center and Oregon State project yielded six-million-year-old Antarctic ice cores. What the oldest ice cores reveal about climate, on this week’s episode: bigpicturescience.org/episodes/old...
April 16, 2026 at 12:29 AM
The hunt for old ice recently exceeded expectations when COLDEX the collaborative NSF-funded research center and Oregon State project yielded six-million-year-old Antarctic ice cores. What the oldest ice cores reveal about climate, on this week’s episode: bigpicturescience.org/episodes/old...
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...
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.
www.nature.com
March 18, 2026 at 10:17 PM
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...
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/...
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/...
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...
www.pnas.org
December 8, 2025 at 9:39 PM
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/...
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/...
Grateful for warm shelter as I learn about ice core science on a snowy eve! Fun fact: the oldest ice analyzed to date is 6 million (!) years old!!
#icecorescience #coldex #schoolofice
#icecorescience #coldex #schoolofice
January 22, 2025 at 2:11 AM
Grateful for warm shelter as I learn about ice core science on a snowy eve! Fun fact: the oldest ice analyzed to date is 6 million (!) years old!!
#icecorescience #coldex #schoolofice
#icecorescience #coldex #schoolofice
Paid Summer REU at NSF Center for Oldest Ice Exploration (COLDEX)! Work COLDEX researchers on topics in Antarctic ice core chemical analysis, oldest ice exploration, ice flow modeling, engineering, science communication, or geoscience education.
Learn more at nagt.org/nagt/news/ad...
Learn more at nagt.org/nagt/news/ad...
January 10, 2025 at 7:00 PM
Paid Summer REU at NSF Center for Oldest Ice Exploration (COLDEX)! Work COLDEX researchers on topics in Antarctic ice core chemical analysis, oldest ice exploration, ice flow modeling, engineering, science communication, or geoscience education.
Learn more at nagt.org/nagt/news/ad...
Learn more at nagt.org/nagt/news/ad...
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
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
January 30, 2025 at 10:08 PM
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
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
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...
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...
Polar Careers Outside Academia | Polar Science Early Career Community Office
psecco.org
June 11, 2024 at 5:50 PM
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...
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...
USAPECS and COLDEX are proud to partner for Assessing Challenges for Polar Early Career Scientists During Science Policy Upheaval through the Polar Partnership Networking Event Collaboration Funding Support provided by @psecco.bsky.social
Stay tuned for more updates!
Stay tuned for more updates!
October 8, 2025 at 6:40 PM
USAPECS and COLDEX are proud to partner for Assessing Challenges for Polar Early Career Scientists During Science Policy Upheaval through the Polar Partnership Networking Event Collaboration Funding Support provided by @psecco.bsky.social
Stay tuned for more updates!
Stay tuned for more updates!
Back to Earth next week, hearing about the Mississippi's fragile projection into the Gulf of Mexico, the Bird's Foot Delta, 150km S of NOLA - #MissDelta;
Lessons of Katrina 20yrs on;
Seeing under Greenland's ice
Oldest Antarctic ice #COLDEX
& Stains of oldest life.
www.bbc.co.uk/programmes/w...
Lessons of Katrina 20yrs on;
Seeing under Greenland's ice
Oldest Antarctic ice #COLDEX
& Stains of oldest life.
www.bbc.co.uk/programmes/w...
January 16, 2026 at 5:24 PM
Back to Earth next week, hearing about the Mississippi's fragile projection into the Gulf of Mexico, the Bird's Foot Delta, 150km S of NOLA - #MissDelta;
Lessons of Katrina 20yrs on;
Seeing under Greenland's ice
Oldest Antarctic ice #COLDEX
& Stains of oldest life.
www.bbc.co.uk/programmes/w...
Lessons of Katrina 20yrs on;
Seeing under Greenland's ice
Oldest Antarctic ice #COLDEX
& Stains of oldest life.
www.bbc.co.uk/programmes/w...
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:
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
www.scientificamerican.com
December 6, 2024 at 3:12 PM
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:
I enjoy following updates from the field team via the COLDEX blog (this one I think by @martinfs.bsky.social):
NSF COLDEX field team I-187 sets up at the Allan Hills — NSF Center for Oldest Ice Exploration
After a few weeks of settling into Antarctica, getting used to the time zone differences, and finalizing equipment preparation, our first field team has finally made it to their field site: the Allan ...
coldex.org
December 6, 2024 at 3:13 PM
I enjoy following updates from the field team via the COLDEX blog (this one I think by @martinfs.bsky.social):
You should have @icy-pete.bsky.social on to talk about COLDEX and old ice and Paleoclimatology.
May 1, 2026 at 12:05 AM
You should have @icy-pete.bsky.social on to talk about COLDEX and old ice and Paleoclimatology.
How do you obtain ancient ice, millions of years old, to analyze the content of the air bubbles trapped within?
Let Danielle Whittaker, ice core handler for NSF COLDEX, walk you through the drilling tent in Allan Hills, Antarctica, on a bitter cold December night: oregonstater.org/under-the-mi...
Let Danielle Whittaker, ice core handler for NSF COLDEX, walk you through the drilling tent in Allan Hills, Antarctica, on a bitter cold December night: oregonstater.org/under-the-mi...
Under the Midnight Sun - Oregon Stater
It was Dec. 23, our eighth night in a row of working the night shift in the drill tent. We were trying to finish drilling the longest ice core ever drilled in the Allan Hills of Antarctica. Radar data...
oregonstater.org
September 14, 2026 at 11:14 PM
How do you obtain ancient ice, millions of years old, to analyze the content of the air bubbles trapped within?
Let Danielle Whittaker, ice core handler for NSF COLDEX, walk you through the drilling tent in Allan Hills, Antarctica, on a bitter cold December night: oregonstater.org/under-the-mi...
Let Danielle Whittaker, ice core handler for NSF COLDEX, walk you through the drilling tent in Allan Hills, Antarctica, on a bitter cold December night: oregonstater.org/under-the-mi...
Six-million-year-old ice discovered in #Antarctica offers unprecedented window into a warmer Earth #COLDEX
news.oregonstate.edu/news/six-mil...
news.oregonstate.edu/news/six-mil...
Six-million-year-old ice discovered in Antarctica offers unprecedented window into a warmer Earth | Newsroom
CORVALLIS, Ore. — A team of U.S. scientists has discovered the oldest directly dated ice and air on the planet in the Allan Hills region of East Antarctica. The 6-million-year-old ice and the tiny air...
news.oregonstate.edu
October 29, 2025 at 9:34 AM
Six-million-year-old ice discovered in #Antarctica offers unprecedented window into a warmer Earth #COLDEX
news.oregonstate.edu/news/six-mil...
news.oregonstate.edu/news/six-mil...
Having a time machine is handy if you want to understand how our planet has changed over millions of years. Paleoclimatologist Ed Brook tells us how the team at the Center for Oldest Ice Exploration (COLDEX) extracted one out of a block of Antarctic ice. bigpicturescience.org/episodes/old...
April 15, 2026 at 3:28 PM
Having a time machine is handy if you want to understand how our planet has changed over millions of years. Paleoclimatologist Ed Brook tells us how the team at the Center for Oldest Ice Exploration (COLDEX) extracted one out of a block of Antarctic ice. bigpicturescience.org/episodes/old...
Spent a week in Oregon w/ Project ICE & COLDEX-Center for Oldest Ice Exploration. From holding 5,000 year old ice & seeing the gases trapped is inside, to sampling a 60,000 year old ice core (& keeping it afterward!), to seeing foraminifera fossils as climate indicators…it was an amazing week! ❤️🧊
June 29, 2025 at 6:22 PM
Spent a week in Oregon w/ Project ICE & COLDEX-Center for Oldest Ice Exploration. From holding 5,000 year old ice & seeing the gases trapped is inside, to sampling a 60,000 year old ice core (& keeping it afterward!), to seeing foraminifera fossils as climate indicators…it was an amazing week! ❤️🧊
💼 #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...
🗺️ Where: Corvallis, Oregon, USA
⌛ Deadline: August 29 2024
Discover more 👇
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.
jobs.oregonstate.edu
August 20, 2024 at 9:20 AM
💼 #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...
🗺️ Where: Corvallis, Oregon, USA
⌛ Deadline: August 29 2024
Discover more 👇
jobs.oregonstate.edu...