magnetic reversal climate shifts

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Swamp sentinels
www.biographic.com

Swamp sentinels

Buried in mud for millennia, some of New Zealand's ancient kauri trees are revealing surprising clues about Earth's climate—past, present, and future.
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magnetic reversal triggered massive climate shifts
cosmosmagazine.com

Magnetic reversal caused massive climate shifts

About 42,000 years ago, a magnetic reversal triggered massive climate shifts and caused environmental changes to sweep across the globe.
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