Classification
UMV - Climatic change
7
UCJ - Environmental protection - general aspects
5
UED - Environmental policy
4
EHA - Renewable energy sources
1
EKA - Wind energy
1
EUA - Energy conservation - general
1
EUC - Energy conservation - civil engineering
1
EVB - Energy supply of Germany
1
EVH - Energy supply - economic growth
1
EVN - Energy supply - future aspects
1
UEDM - Policy of clean air
1
UKB - Environmental effects and energy
1