Subject
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Case studies
1
Christmas tree industry
1
Christmas trees
5
Classification
2
Clearcutting
5
Climate
1
Climate change
5
Coal
2
Coal Mines
1
Coal industry
2
Coal mines and mining
1
Coal preparation
1
Coastal areas
1
Coastlines
1
Collection and preservation
1
Combustion
1
Competition
1
Conservation
14
Conservation areas
1
Conservation biology
1
Conservation of natural resources
2
Control
1
Cost
1
Cougars
1
Coyote
2
Coyotes
2
Crown land
11
Crown lands
32
Darwin, Charles, 1809-1882
1
Data
1
Data processing
1
Databases
1
Decision-making
1
Deer
3
Deer hunting
1
Deer populations
1
Demographics
1
Design
2
Design and construction
3
Desulferization
1
Diseases and pests
2
Dogs
1
Eagles
1
Ecological regions
1
Ecology
2
Economic aspects
11
Economic conditions
1
Economic policy
1
Economics
2
Ecosystem management
3
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