Classification
UMV - Climatic change
396
GRB - Climatology
106
UED - Environmental policy
64
GRBA - Climatology - general
34
GBC - Paleoclimatology
30
UCA - Environmental problems, man and environment - general aspects
26
GRBN - Climatological models
19
UMB - Atmospheric chemistry
19
UKA - Environmental damage and energy production
17
GRA - Meteorology
13
LWE - Agriculture - general aspects
13
YRC - Technology and society
12
UCE - Environmental impact, environmental pollution
11
UEG - Environmental programs and expertises
11
LCM - Terrestrial ecology
10
UEA - Environmental policy and economy - general aspects
10
UKE - Environment and energy resources
10
YRA - Social studies
10
EBA - Energy production, energy technology
9
EXA - Energy policy
9
UMD - Atmospheric models
9
EHA - Renewable energy sources
8
GAN - Geosciences - mathematical methods, computer applications
8
GRBK - Climatological data
8
UAM - Environmental models
8
GRAD - Earth atmosphere, weather
7
GSC - Remote sensing
7
GVA - Oceanography
7
LCK - Ecology - general aspects
7
UEF - Sustainability
7
UEN - Environmental economy
7
EVN - Energy supply - future aspects
6
UAN - Environment - mathematical methods, computer applications
6
UMC - Atmospheric physics
6
UMK - Air pollution - general aspects
6
UMN - Air pollution control and measurement
6
LER - Plant physiology - ecological aspects
5
LWO - Agricultural ecology, sustainable agriculture
5
LWV - Agriculture - plant protection
5
UKH - Environment and power plants, industrial plants
5
UMA - Atmospheric sciences
5
AHPC - Ethics
4
ENA - Energy from biomass and waste
4
GBED - Glaciology
4
GXAA - Polar research - arctic region
4
UAA - Environment - reference books
4
UAX - Environment - information systems, literature guides
4
UCG - Control of environmental pollution
4
UCS - Environmental chemistry
4
UEDM - Policy of clean air
4
more ...