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Non-CO2 Gases Economic Analysis and Inventory
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Photo collage of economic charts, agricultural land, view of earth from space, and rice cultivation.Global Warming Potentials and Atmospheric Lifetimes (Years)

Gas Atmospheric Lifetime GWPa
Carbon dioxide (CO2)
50-200
1
Methane (CH4)b
12±3
21
Nitrous oxide (N2O)
120
310
HFC-23
264
11,700
HFC-32
5.6
650
HFC-125
32.6
2,800
HFC-134a
14.6
1,300
HFC-143a
48.3
3,800
HFC-152a
1.5
140
HFC-227ea
36.5
2,900
HFC-236fa
209
6,300
HFC-4310mee
17.1
1,300
CF4
50,000
6,500
C2F6
10,000
9,200
C4F10
2,600
7,000
C6F14
3,200
7,400
SF6
3,200
23,900

a 100 year time horizon
b The methane GWP includes the direct effects and those indirect effects due to the production of tropospheric ozone and stratospheric water vapor. The indirect effect due to the production of CO2 is not included.

 

 
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