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Alaska
2
Environmental impacts
2
Frozen ground
2
Thawing
2
147 28 W)
1
147 29 W)
1
Active layer
1
All-terrain vehicles
1
Black spruces
1
Bogs
1
Caribou Creek (65 09 N
1
Drainage
1
Oil spills on land
1
Permafrost
1
Plant cover
1
Poker Creek (65 08 N
1
Soil percolation
1
Soil profiles
1
Soils
1
Southcentral
1
Testing
1
Thaw settlement
1
Thermal protection of permafrost
1
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