Subject
economic policy
environmental impact statement
environmental protection
5
environmental impact assessment
4
environmental policy
4
economic aspect
3
environmental education
3
environmental law
3
environmental program
3
ecology
2
economic analysis
2
economics
2
environmental impact
2
environmental quality
2
ecobalance
1
econometric model
1
economic development
1
economic model
1
economic trend
1
economy
1
ecosystem
1
environmental monitoring
1
environmental research
1