Subject
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Pollution
71
Resource management
71
Sustainability
71
Black spruce
70
Forest thinning
70
Plants
70
GOVERNMENT
69
Protected areas
69
Forest pests
67
Seedlings
67
Electric power
66
Wilderness areas
66
Coal Mines
65
Development
65
Technology
65
Mineral deposits
64
Timber
64
Water quality
64
Pipelines
63
Production
63
Clearcutting
62
Forest inventories
62
Testing
62
Wood
62
Beaches
61
Biomass energy
61
Outdoor recreation
61
White spruce
61
Forest site quality
60
Agriculture
59
Children
59
Mineral Resources
59
Taxes
59
Tectonics
59
Christmas trees
58
Forest industry
58
Climate change
57
Combustion
57
Models
57
Research and development
57
Supply and demand
57
Hunting
56
Environmental policy
54
Forest conservation
54
Geophysical surveys
54
Mathematical models
54
Safety
54
Sedimentation
54
Seeds
54
Biomass
53
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