Subject
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Heat pumps
4
Land ownership
4
Legislation
4
Lichens
4
Marine environment
4
Marine parks and reserves
4
Marshes
4
Methodology
4
Models
4
Moisture
4
National parks
4
Nutrients
4
Outdoor recreation
4
Programs
4
Resource conservation
4
Sedimentation
4
Statistics
4
Supply and demand
4
Taiga ecology
4
Waterfowl
4
biodiversity
4
Aboriginals
3
Air
3
Air pollution
3
American marten
3
Analysis
3
Biological diversity
3
Biomass
3
Biosphere
3
Biotic communities
3
Boreal felt lichen
3
Butterflies
3
Climate change
3
Coal
3
Coastal areas
3
Congresses
3
Crown land
3
Deforestation
3
Ecological balance
3
Ecological regions
3
Economic conditions
3
Emissions
3
Energy consumption
3
Environmental conditions
3
Environmental monitoring
3
Fauna
3
Fishes
3
Forest germplasm resources conservation
3
Forest inventories
3
Forest products
3
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