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Environmental impacts
Alaska
4
Permafrost
3
Tundra ecology
3
Granular resources extraction
2
Northern
2
Oil well drilling
2
Thermal protection of permafrost
2
All-terrain vehicles
1
Animal distribution
1
Arctic National Wildlife Refuge
1
Bioassays
1
Bogs
1
Colville Delta
1
Drainage
1
Dredging
1
Drilling mud disposal
1
Effects monitoring
1
Ellef Ringnes Island
1
Fishes
1
Floods
1
Frozen ground
1
Gravel
1
Heavy metals
1
Hoodoo River region
1
Industrial waste disposal
1
Leaching
1
Meteorologist Peninsula
1
North Slope Borough
1
Nuiqsut
1
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