SUBJECT
Climatic changes
74
Ecology
58
Environmental aspects
39
Biodiversity conservation
19
Nature conservation
19
Research
18
Biodiversity
16
Government policy
15
Pollution
15
Environmental policy
14
Economic aspects
13
Global warming
13
Climate change mitigation
12
Methodology
12
Social aspects
12
Biological diversity conservation
11
Ecosystem management
10
Environmental monitoring
10
Environmental protection
10
Geology
10
Mathematical statistics
10
Conservation of natural resources
9
Economic development
9
Human ecology
9
Natural history
9
Biological diversity
8
Environmental education
8
Management
8
Restoration ecology
8
Climatic factors
7
Electronic data processing
7
Environmental management
7
Man
7
Sampling (Statistics)
7
Statistics
7
Sustainable development
7
Effect of human beings on
6
Human beings
6
Natural disasters
6
Planning
6
Probabilities
6
Risk assessment
6
Science
6
Study and teaching
6
Urban ecology (Biology)
6
Coastal ecology
5
Influence on nature
5
Landscape protection
5
Linear programming
5
Natural resources
5
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