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Into an ice age

Analyses of a new ice core from Greenland yield the first high-resolution picture of the start of the last ice age in the Northern Hemisphere, and of the onset of climate instability as our planet cooled.

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Figure 1: Core territory — the Greenland ice cap, which holds a climate record going back to the last interglacial, the Eemian.



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Cuffey, K. Into an ice age. Nature 431, 133–134 (2004).

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