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Ice and Permafrost
7
Snow
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5
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CLIMATE
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NATIONAL SECURITY
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CONGRESS
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DENMARK
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GREENLAND
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POLLUTION
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RUSSIA
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ALASKA
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MERCHANT VESSELS
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Greenland
Ice
Sea ice
10
permafrost
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Arctic
9
Alaska
7
Arctic Ocean
6
Climate change
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Lomonosov Ridge
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Fram Strait
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Greenland Sea
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Iceland
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Northern Sea Route
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Northwest passage
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Svalbard
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Beaufort Sea
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Global warming
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Law of the Sea
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Norwegian Sea
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Scoresby Sund
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ice covered waters
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ice pack
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