Global Warming Potentials (IPCC Second Assessment Report)
|
Species
|
Chemical formula
|
Lifetime (years)
|
Global Warming Potential (Time Horizon)
|
|
|
|
|
20 years
|
100 years
|
500 years
|
|
Carbon dioxide
|
CO2
|
variable §
|
1
|
1
|
1
|
|
Methane *
|
CH4
|
12±3
|
56
|
21
|
6.5
|
|
Nitrous oxide
|
N2O
|
120
|
280
|
310
|
170
|
|
|
|
|
|
|
|
|
HFC-23
|
CHF3
|
264
|
9100
|
11700
|
9800
|
|
HFC-32
|
CH2F2
|
5.6
|
2100
|
650
|
200
|
|
HFC-41
|
CH3F
|
3.7
|
490
|
150
|
45
|
|
HFC-43-10mee
|
C5H2F10
|
17.1
|
3000
|
1300
|
400
|
|
HFC-125
|
C2HF5
|
32.6
|
4600
|
2800
|
920
|
|
HFC-134
|
C2H2F4
|
10.6
|
2900
|
1000
|
310
|
|
HFC-134a
|
CH2FCF3
|
14.6
|
3400
|
1300
|
420
|
|
HFC-152a
|
C2H4F2
|
1.5
|
460
|
140
|
42
|
|
HFC-143
|
C2H3F3
|
3.8
|
1000
|
300
|
94
|
|
HFC-143a
|
C2H3F3
|
48.3
|
5000
|
3800
|
1400
|
|
HFC-227ea
|
C3HF7
|
36.5
|
4300
|
2900
|
950
|
|
HFC-236fa
|
C3H2F6
|
209
|
5100
|
6300
|
4700
|
|
HFC-245ca
|
C3H3F5
|
6.6
|
1800
|
560
|
170
|
|
Sulphur hexafluoride
|
SF6
|
3200
|
16300
|
23900
|
34900
|
|
Perfluoromethane
|
CF4
|
50000
|
4400
|
6500
|
10000
|
|
Perfluoroethane
|
C2F6
|
10000
|
6200
|
9200
|
14000
|
|
Perfluoropropane
|
C3F8
|
2600
|
4800
|
7000
|
10100
|
|
Perfluorobutane
|
C4F10
|
2600
|
4800
|
7000
|
10100
|
|
Perfluorocyclobutane
|
c-C4F8
|
3200
|
6000
|
8700
|
12700
|
|
Perfluoropentane
|
C5F12
|
4100
|
5100
|
7500
|
11000
|
|
Perfluorohexane
|
C6F14
|
3200
|
5000
|
7400
|
10700
|