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ARCTIC OCEAN
CLIMATE
4
*ARCTIC REGIONS
3
*SEA ICE
3
CANADA
3
CONGRESS
3
CONTINENTAL SHELVES
3
GREENLAND
3
Ice and Permafrost
3
MINERALS
3
NATIONAL SECURITY
3
NORWAY
3
Snow
3
UNITED STATES
3
ALASKA
2
DENMARK
2
GASES
2
GLOBAL
2
MERCHANT VESSELS
2
POLLUTION
2
RISK
2
RUSSIA
2
SEA ICE
2
SHORES
2
TEMPERATURE
2
WATER
2
(*ARCTIC REGIONS
1
*CLIMATE
1
*ENVIRONMENTAL PROTECTION
1
*INDIGENOUS POPULATION
1
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