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Environmental impacts
Permafrost
6
Alaska
5
Frozen ground
3
Active layer
2
Black spruces
2
Bogs
2
Drainage
2
Nunavut
2
Oil spills on land
2
Roads
2
Soils
2
Thawing
2
Thermal protection of permafrost
2
147 28 W)
1
147 29 W)
1
All-terrain vehicles
1
Beaches
1
Bioassays
1
Canada
1
Canadian Arctic
1
Caribou Creek (65 09 N
1
Colville Delta
1
Design and construction
1
Diesel fuels
1
Dredging
1
Drilling mud disposal
1
Effects monitoring
1
Ellef Ringnes Island
1
Erosion
1
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