Nitrous oxide gas should not be confused with nitric oxide or nitrogen dioxide. Neither nitric oxide nor nitrogen dioxide are greenhouse gases, although they are important in the process of creation of tropospheric ozone which is a greenhouse gas.
Nitrogen (N) use in agriculture substantially alters global N cycle with the short- and long-term effects on global warming and climate change. It increases emission of nitrous oxide, which contributes 6.2%, while carbon dioxide and methane contribute 76% and 16%, respectively of the global warming. However, N causes cooling due to emission of NOx, which alters concentrations of tropospheric ozone and methane. NOx and NH3 also form aerosols with considerable cooling effects.
Thus net global temperature change potential (GTP) over a 20 year time-scale is lower by 6.9% and that over a 100 year time-scale by 2.4% compared to the GTP considering nitrous oxide emission alone.
Nitrogen (N) use in agriculture substantially alters global N cycle with the short- and long-term effects on global warming and climate change. It increases emission of nitrous oxide, which contributes 6.2%, while carbon dioxide and methane contribute 76% and 16%, respectively of the global warming. However, N causes cooling due to emission of NOx, which alters concentrations of tropospheric ozone and methane. NOx and NH3 also form aerosols with considerable cooling effects.
Thus net global temperature change potential (GTP) over a 20 year time-scale is lower by 6.9% and that over a 100 year time-scale by 2.4% compared to the GTP considering nitrous oxide emission alone.
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