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Ice cores

Image of a bearded and gloved man, Robert Mulvaney, with ice inside a metal corer.
Posted inNews

Māori Arrival in New Zealand Revealed in Antarctic Ice Cores

by Kate Evans 26 October 202121 March 2022

A new study shows smoke from fires set by the first inhabitants of Aotearoa from around 1300 left a mark in the ice 6,000 kilometers away, on an island off the Antarctic Peninsula.

Long aisle in a storage facility lined with metal tubes of ice cores
Posted inFeatures

Cores 3.0: Future-Proofing Earth Sciences’ Historical Records

by Jane Palmer 24 June 202127 October 2021

Core libraries store a treasure trove of data about the planet’s past. What will it take to sustain their future?

Sea ice off the coast of Antarctica
Posted inResearch Spotlights

South Pole Ice Core Reveals History of Antarctic Sea Ice

by Elizabeth Thompson 12 May 202126 October 2021

Every summer, most of the sea ice near Antarctica melts away, but its saltiness leaves a permanent record that scientists can trace back for millennia.

Middle school students sitting around a table at Ohio State University with a homemade ice core
Posted inNews

Cold Curriculum for a Hot Topic

by Nancy Averett 22 March 202127 October 2021

Educators at ice core labs teach students hands-on lessons about climate change.

A pink laser sublimates an ice core in a scientific instrument chamber.
Posted inNews

The Catcher in the Ice

by Bas den Hond 22 January 202127 October 2021

There are three ways to extract gases from an ice core. The cleanest one, sublimation, is getting easier.

Six people in bright snowsuits and goggles drill an ice core on Mount Everest with mountains and clouds in the background.
Posted inNews

An Ice Core from the Roof of the World

by A. Blaustein 14 December 202028 October 2021

An innovative National Geographic expedition collected the world’s highest ice core from Mount Everest.

Image of Mount Elbrus in Russia
Posted inNews

Fragrances in an Ice Core Tell a Story of Human Activity

by Carolyn Wilke 6 August 2020

An ice core from Europe’s highest peak contains scent-imparting molecules whose trends mirror the Soviet Union’s economic ups and downs.

Three scientists, one digging a hole, sample soil from a dry valley in Antarctica.
Posted inNews

Antarctic Ice Cores Might Be Older Than Dirt

by J. Hendricks 6 February 2020

Using cosmogenic nuclide dating, scientists determined a 10-meter core just below the surface to be over a million years old.

Ice core from Mount Hunter in Alaska provides a record of climate and environmental history
Posted inScience Updates

Developments in Ice Core Research on Past Climate Change

by B. S. Lecavalier and B. R. Markle 4 October 2016

IPICS 2016 Open Science Conference; Hobart, Australia, 7–11 March 2016

Sea ice near West Greenland in summer 2014.
Posted inScience Updates

How Will Sea Ice Loss Affect the Greenland Ice Sheet?

by F. S. R. Pausata, A. N. LeGrande and W. H. G. Roberts 14 March 201612 April 2016

On the Puzzling Features of Greenland Ice-Core Isotopic Composition; Copenhagen, Denmark, 26–28 October 2015

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