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Alaska
2
Environmental impacts
2
Permafrost
2
Thermal protection of permafrost
All-terrain vehicles
1
Bogs
1
Colville Delta
1
Drainage
1
Dredging
1
Effects monitoring
1
Frozen ground
1
Granular resources extraction
1
North Slope Borough
1
Northern
1
Nuiqsut
1
Rivers
1
Soils
1
Southcentral
1
Testing
1
Thawing
1
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