Classification
UKE - Environment and energy resources
10
UKA - Environmental damage and energy production
5
UMV - Climatic change
3
EVA - Energy demand, energy supply - comprehensive works
2
UEF - Sustainability
2
UKB - Environmental effects and energy
2
EBA - Energy production, energy technology
1
EHA - Renewable energy sources
1
GRB - Climatology
1
UKH - Environment and power plants, industrial plants
1
UMGE - Carbon capture and storage (CCS)
1