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CH3041
ENHANCED G. EFFECT
• An “enhanced greenhouse effect” has resulted
from humans increasing the natural greenh. gas levels since pre-industrial times
• A form of air pollution at the global level.
CO2 +35% -fossil fuel use, cement, land-use
CH4 +100% - wetlands, f. fuels, rice, landfill
N2O +9% - coal fuel, fertilisers
CH4 +100% - wetlands, f. fuels, rice, landfill
N2O +9% - coal fuel, fertilisers
• The addition of CFCs and HCFCs
has also had an effect although this is a
localised tropospheric heating effect which is then effectively cancelled by a cooling effect in the stratos. due to O3 destruction.
has also had an effect although this is a
localised tropospheric heating effect which is then effectively cancelled by a cooling effect in the stratos. due to O3 destruction.
