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*ARCTIC REGIONS
ARCTIC OCEAN
Ice and Permafrost
6
Snow
6
SEA ICE
5
*CLIMATE CHANGE
3
CLIMATE
3
CONTINENTAL SHELVES
3
Meteorology
3
POLICIES
3
*SEA ICE
2
AGREEMENTS
2
ALASKA
2
CANADA
2
CONGRESS
2
DENMARK
2
GASES
2
GLOBAL
2
GREENLAND
2
Geography
2
MARITIME OPERATIONS
2
MERCHANT VESSELS
2
MINERALS
2
NATIONAL SECURITY
2
NAVAL OPERATIONS
2
NORTHERN SEA ROUTE
2
NORTHWEST PASSAGE
2
NORWAY
2
POLLUTION
2
Physical and Dynamic Oceanography
2
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