Arctic

Warming alters predator-prey interactions in the Arctic

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Permafrost thawing could accelerate global warming

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Dinosaur skull may reveal T. rex’s smaller cousin from the north

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NASA: Warm Rivers Play Role in Arctic Sea Ice Melt

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Whales, ships more common through Bering Strait

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How do polar bears stay warm? Research finds an answer in their genes

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DNA reveals new clues: Why did mammoths die out?

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Dramatic thinning of Arctic lake ice cuts winter ice season by 24 days

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Arctic a source of atmospheric carbon

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Greenland’s shrunken ice sheet: We’ve been here before

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The tundra — a dark horse in planet Earth’s greenhouse gas budget

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Tiny plankton could have big impact on climate

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