SUBJECT
Environmental policy
Natural resources
Management
45
Environmental aspects
35
Sustainable development
34
Economic aspects
22
Environmental protection
19
Economic development
16
Economic policy
14
Government policy
14
Environmental economics
12
Raw materials
12
Environmental management
11
Human ecology
11
Conservation of natural resources
10
Population
9
Pollution
8
Citizen participation
6
Law and legislation
5
Valuation
5
Cost effectiveness
4
Economic development projects
4
Mathematical models
4
Population policy
4
Social aspects
4
Ecology
3
Economic conditions
3
Electronic books
3
Environmental degradation
3
Environmental law
3
Forest management
3
Co-management
2
Coasts
2
Decentralization in government
2
Economics
2
Environmental conditions
2
Environmental impact analysis
2
Environmental law, International
2
Environmental quality
2
History
2
International cooperation
2
Local government
2
Man
2
Managament
2
Nature conservation
2
Agricultural colonies
1
Agriculture
1
Air quality management
1
Case studies
1
Contingent valuation
1
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