RT null
T1 Greenhouse Gases Emission Guidance Book
A1 United Nations Environment Programme, 
K1 greenhouse gas emission
K1 carbon dioxide
K1 emission inventory
K1 emission source
K1 Afghanistan
YR 2020
FD 2020
LK https://wedocs.unep.org/handle/20.500.11822/42287
UL https://wedocs.unep.org/handle/20.500.11822/42287
NO Greenhouse gases are those gaseous constituents of the atmosphere, both natural and anthropogenic, that absorb and emit radiation at specific wavelengths within the spectrum of thermal infrared radiation emitted by the Earth's surface, the atmosphere itself, and by clouds. This property causes the greenhouse effect. Water vapour (H2O), carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4) and ozone (O3) are the primary greenhouse gases in the Earth's atmosphere.
DS UN Environment Document Repository
RD Sep 24, 2026