Subject
greenhouse effect
184
climatic change
119
greenhouse gas
117
climatic impact
57
environmental policy
54
climate modification
40
global warming
39
climatic effect
37
emission
34
Climatic changes
32
carbon dioxide production
31
emission inventory
29
Greenhouse gases
27
Greenhouse gas mitigation
26
European Union
25
research project
25
carbon dioxide
23
climate model
22
agriculture
19
greenhouse
19
atmospheric chemistry
18
energy environment balance
18
environmental impact assessment
18
global change
18
climate protection
17
energy consumption
17
Greenhouse gas mitigation.
15
carbon dioxide cycle
15
climatology
15
ozone layer
15
environmental protection
14
global aspect
14
Climatic changes.
13
Global warming
12
economic aspect
12
energy policy
12
Greenhouse effect, Atmospheric.
11
environmental balance
11
environmental effect
11
environmental impact
11
political aspect
11
traffic
11
air pollution
10
economic policy
10
energy model
10
carbon dioxide flooding
9
climate
9
energy supply
9
environmental impact statement
9
Greenhouse effect, Atmospheric
8
more ...