The Greenland Ice Record main content.

The Greenland Ice Record

Close-up of ice core in the Hall of Planet Earth AMNH/D. Finnin

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To study past climate, scientists have extracted several ice cores from the Greenland Ice Sheet. This model represent a segment of a core known as GISP2. Scientists drilled through the bedrock for five years to retrieve the full three-kilometer (1.9-mile) core. Records from polar ice cores can span 100,000 years or more.