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NOVA
Fifty Million Years Ago, the Arctic Was a Warm Swamp
Think you know what the Arctic looked like during the Eocene Epoch? Play NOVA’s Polar Lab to find out: You might be surprised by the plants and animals that used to call it home.
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Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.
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Experts reconstruct the Great Hurricane of 1780 to help predict the risk of future storms.
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Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.
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Engineers race to build a massive dome to contain the crumbling remains of the reactor.