Subject
climatic change
environmental policy
greenhouse effect
11
climatic impact
9
environmental pollution
6
climate modification
5
climate protection
5
energy consumption
5
energy policy
5
environmental monitoring
5
environmental protection
5
climatic effect
4
energy model
4
environmental impact assessment
4
environmental impact statement
4
environmental law
4
political aspect
4
energy production
3
environmental program
3
environmental research
3
greenhouse gas
3
carbon dioxide
2
carbon dioxide production
2
climatology
2
emission
2
energy economy
2
energy environment balance
2
industry
2
methane
2
nitrous oxide
2
traffic
2
volatile organic compound
2
air pollution control
1
analysis
1
climate
1
climate model
1
economic policy
1
emissions trading
1
energy balance
1
energy conversion
1
energy demand
1
energy discussion
1
energy efficiency
1
energy planning
1
energy prognosis
1
energy program
1
energy research
1
energy system analysis
1
environmental significance
1
fossil fuel
1
more ...