Explanation

The phenomenon of keeping the earth warm due to presence of certain gases in the atmosphere is called green house effect (Fourier,1827).The name is based after a similar warmer interior in glass-enclosed green house where glass panes,$\ CO_{2}$ and water vapour allow the solar radiations to enter but prevent the escape of long wave heat radiations$\ CO_{2}$and $N_{2}O$ are the major cause of “green house effect” $CO_{2}$ contributes 60% of total global warming ,$N_{2}O$ contributes 6% to green effect.