Subject
economic policy
economics
economic aspect
9
economic analysis
8
economy
8
environmental policy
5
economic trend
4
ecology
3
economic model
3
ecosystem
3
environmental impact statement
3
environmental program
3
environmental protection
3
carbon dioxide production
2
developing country
2
energy environment balance
2
environmental impact
2
environmental research
2
greenhouse effect
2
resource
2
biosphere
1
carbon dioxide cycle
1
carbon dioxide flooding
1
coal combustion
1
coal gasification
1
econometric model
1
economic development
1
energy cost
1
energy discussion
1
environmental education
1
environmental effect
1
environmental engineering
1
environmental impact assessment
1
environmental pollution
1
environmental quality
1
finance
1
global aspect
1
global change
1
global warming
1
hazardous waste
1
industrial waste
1
international trade
1
occupation
1
random error
1
risk analysis
1
risk research
1
social aspect
1
social policy
1
social science
1
socioeconomic aspect
1
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