Classification
UMV - Climatic change
GRB - Climatology
68
UED - Environmental policy
61
GRBA - Climatology - general
24
UCA - Environmental problems, man and environment - general aspects
17
UMB - Atmospheric chemistry
16
UKA - Environmental damage and energy production
12
GBC - Paleoclimatology
11
GRBN - Climatological models
10
YRA - Social studies
8
YRC - Technology and society
8
UCJ - Environmental protection - general aspects
7
GRA - Meteorology
6
UAM - Environmental models
6
UEA - Environmental policy and economy - general aspects
6
UEN - Environmental economy
6
UKH - Environment and power plants, industrial plants
6
GRAD - Earth atmosphere, weather
5
UAX - Environment - information systems, literature guides
5
UEG - Environmental programs and expertises
5
UMN - Air pollution control and measurement
5
EBA - Energy production, energy technology
4
EVA - Energy demand, energy supply - comprehensive works
4
GPAB - Flora, vegetation - geographical aspects
4
GVA - Oceanography
4
LCK - Ecology - general aspects
4
LWE - Agriculture - general aspects
4
TNB - Nuclear power plants
4
UEDM - Policy of clean air
4
UKE - Environment and energy resources
4
UMA - Atmospheric sciences
4
UMD - Atmospheric models
4
UMGE - Carbon capture and storage (CCS)
4
YEA - Environmental law
4
GSC - Remote sensing
3
LWV - Agriculture - plant protection
3
TKD - Air conditioning, refrigeration
3
TKF - Power plants
3
UAN - Environment - mathematical methods, computer applications
3
UENH - Cost factors of air pollution and control
3
UMC - Atmospheric physics
3
UMK - Air pollution - general aspects
3
UMNL - Environmental aerosols
3
UPK - Water resources, water supply
3
AHN - Media and communication science
2
EHA - Renewable energy sources
2
EUC - Energy conservation - civil engineering
2
EUD - Energy consumption
2
EUK - Waste heat utilization, heat recovery
2
EUR - District heating
2
more ...