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*ARCTIC REGIONS
Ice and Permafrost
13
Snow
ARCTIC OCEAN
6
Meteorology
6
SEA ICE
6
*CLIMATE CHANGE
5
*SEA ICE
5
CLIMATE
5
Geography
5
SYMPOSIA
4
*ARCTIC OCEAN
3
CONTINENTAL SHELVES
3
GREENHOUSE EFFECT
3
MODELS
3
NORTHWEST PASSAGE
3
POLICIES
3
Physical and Dynamic Oceanography
3
THICKNESS
3
AGREEMENTS
2
ALASKA
2
CLIMATE CHANGE
2
COASTAL REGIONS
2
GLOBAL
2
INFRASTRUCTURE
2
MARITIME OPERATIONS
2
MISSIONS
2
Military Operations
2
NATIONAL SECURITY
2
NAVAL OPERATIONS
2
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