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The Last Time Antarctica Melted

Researchers drill deep for answers

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MAGAZINE HIGHLIGHTS

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Should We Cool Earth?

Amid climate inaction, scientists confront an idea that scares them.
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Something Stirs: What Will Happen as Permafrost Thaws?

New and ancient threats emerge as permafrost thaws. Are we ready?
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Long in the Tooth

Teeth, like trees, grow in rings. Reading this record may expose new links between toxins and disease.
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