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ARCTIC OCEAN
5
CANADA
5
GREENLAND
ALASKA
4
Ice and Permafrost
4
Snow
4
*ARCTIC REGIONS
3
DENMARK
3
*SEA ICE
2
BAYS
2
CONGRESS
2
CONTINENTAL SHELVES
2
GASES
2
GLOBAL
2
MELTING
2
MERCHANT VESSELS
2
MINERALS
2
NATIONAL SECURITY
2
NORWAY
2
POLLUTION
2
RISK
2
RUSSIA
2
SEASONAL VARIATIONS
2
SHORES
2
STRAITS
2
TEMPERATURE
2
UNITED STATES
2
WATER
2
(*AERIAL RECONNAISSANCE
1
(*SEA ICE
1
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Alaska
Arctic
Arctic Ocean
5
Greenland
5
Ice
permafrost
5
Sea ice
4
Arctic Basin
2
Climate change
2
Greenland Sea
2
Lomonosov Ridge
2
Archipelago
1
Baffin
1
Baffin Bay
1
Banks Island
1
Barents Sea
1
Beaufort Sea
1
Bering Sea
1
Canadian Archipelago
1
Chukchi
1
Chukchi Sea
1
Davis Strait
1
Denmark Strait
1
East Siberian Sea
1
Kara Sea
1
Laptev Sea
1
Mackenzie river
1
Newfoundland
1
Northwest Territories
1
Norwegian Sea
1
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