The US National Science Foundation Center for Oldest Ice Exploration (NSF COLDEX) is a Science and Technology Center formed in 2021 to explore Antarctica for the oldest possible ice core records of our planet’s climate and environmental history, and to help broaden participation in polar science. Learn more.
Recent News
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Under the Midnight Sun (Oregon Stater, 8/26/26): Feature article by Danielle Whittaker about COLDEX’s most recent field season
Congratulations to COLDEXers Alissa Choi (REU 2023, 2024) and Eads Fouché (REU 2023), who were awarded NSF Graduate Research Fellowships and to COLDEXers Marc Sailer (REU 2023, 2024) and Jack Normandin (COLDEX graduate student, Princeton) who received Honorable Mentions!
A pair of new COLDEX papers published today in Nature! Broadly stable atmospheric CO2 and CH4 levels over the past 3 million years, led by Julia Marks-Peterson, and Global ocean heat content over the past 3 million years, led by Sarah Shackleton (3/18/26).
Cool discovery: OSU ice core study reveals more about climate change (KLCC, 3/25/26): Featuring Julia Marks-Peterson.
Other selected coverage: ScienceBlog, Ticker News, Denver Today, Earth.com, Brighter Side of News
University of Minnesota researcher helps collect Antarctic ice samples possibly millions of years old (CBS News Minnesota, 2/11/26): Featuring Martin Froger Silva.
Discovery: Frontiers of Earth Science (BBC, 1/19/26): Podcast featuring an interview with Ed Brook at AGU 2025.
New publication alert! Basal unit radar characteristics at the southern flank of Dome A, East Antarctica, led by Shuai Yan (1/21/26).
#TheMoment scientists got a look inside a glacier (CBC, 1/20/26): Featuring Martin Froger Silva.