Ice Cores: Unlocking Past Climates

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How are scientists unlocking the mysteries of Earth's climate? This series takes a closer look at glaciers and the records they hold of climatic events over long periods of time. Scientists also discuss how they collect and study glacial ice cores to trace climate history.

An illustration depicts different layers of an ice core. The layers may contain volcanic remains, dust, and pollen, from a corresponding period.

Igloos and tents are built on a glacier.

A cartoon shows an example of a T V weather report, extra sunny or cloudy rainy.

An illustration of an ice core with years labeled, from top to bottom, 0, 10, 100, 1000, 10000, and 100,000.

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Ice Cores: Unlocking Past Climates