Classification
UMV - Climatic change
GRB - Climatology
80
UED - Environmental policy
64
GRBA - Climatology - general
29
UMB - Atmospheric chemistry
21
UCA - Environmental problems, man and environment - general aspects
17
GRBN - Climatological models
13
GBC - Paleoclimatology
12
UKA - Environmental damage and energy production
12
YRC - Technology and society
9
GRA - Meteorology
8
LWE - Agriculture - general aspects
8
UAM - Environmental models
8
UCJ - Environmental protection - general aspects
8
YRA - Social studies
8
GRAD - Earth atmosphere, weather
7
UKH - Environment and power plants, industrial plants
7
UMN - Air pollution control and measurement
7
LWH - Agriculture - soil sciences
6
UEA - Environmental policy and economy - general aspects
6
UEN - Environmental economy
6
UMD - Atmospheric models
6
GPAB - Flora, vegetation - geographical aspects
5
GVA - Oceanography
5
LCK - Ecology - general aspects
5
UAX - Environment - information systems, literature guides
5
UCE - Environmental impact, environmental pollution
5
UEG - Environmental programs and expertises
5
UMC - Atmospheric physics
5
EBA - Energy production, energy technology
4
EVA - Energy demand, energy supply - comprehensive works
4
GAN - Geosciences - mathematical methods, computer applications
4
GSC - Remote sensing
4
TNB - Nuclear power plants
4
UEDM - Policy of clean air
4
UKE - Environment and energy resources
4
UMA - Atmospheric sciences
4
UMGE - Carbon capture and storage (CCS)
4
YEA - Environmental law
4
LCM - Terrestrial ecology
3
LER - Plant physiology - ecological aspects
3
LWV - Agriculture - plant protection
3
PLA - Astrosciences - general
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
UMK - Air pollution - general aspects
3
UMNL - Environmental aerosols
3
UPK - Water resources, water supply
3
more ...