What is the correct increasing order of Global Warming Potential (GWP) of the following Green House Gases (GHGs)?

1.CFC-11 (Chlorofluorocarbon-11)

2.CH4 (Methane)

3.CO2 (Carbon dioxide)

4.N2O (Nitrous oxide)

A1, 2, 4, 3

B3, 2, 4, 1 ✓ Correct

C3, 4, 2, 1

D1, 4, 2, 3

Correct answer: (B) 3, 2, 4, 1

Explanation

Global warming potential increases from carbon dioxide up to the chlorofluorocarbon in this set.

Carbon dioxide is the baseline gas with a global warming potential of one.

Methane comes next, trapping heat about twenty-five times more than carbon dioxide.

Nitrous oxide is higher still, near three hundred times the potential of carbon dioxide.

CFC-11 has the greatest potential of all, thousands of times that of carbon dioxide.

Chlorofluorocarbons also destroy stratospheric ozone in addition to warming the climate.

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