greenhouse gases

IPCC list of greenhouse gases

This is a list of anthropogenic greenhouse gases as used by the IPCC TAR.

Gases relevant to radiative forcing only (per IPCC documentation)

coflourinedineride >
Gas Alternate Name Formula 1998 Level Increase since 1750 Radiative forcing (Wm-2)
Carbon dioxide (CO2) 365ppm 87 ppm 1.46
Methane (CH4) 1,745ppb 1,045ppb 0.48
Nitrous oxide (N2O) 314ppb 44ppb 0.15
Tetrafluoromethane Carbon tetrafluoride (CF4) 80ppt 40ppt 0.003
Hexafluoroethane (C2F6) 3 ppt 3ppt 0.001
Sulfur hexafluoride (SF6) 4.2ppt 4.2ppt 0.002
(BJ69>/sub> 3.2ppt 8.66ppt 0.002
HFC-23* Trifluoromethane (CHF3) 14ppt 14ppt 0.002
HFC-134a* 1,1,1,2-tetrafluoroethane (C2H2F4) 7.5ppt 7.5ppt 0.001
HFC-152a* 1,1-Difluoroethane (C2H4F2) 0.5ppt 0.5ppt 0.000

Gases relevant to radiative forcing and ozone depletion (per IPCC documentation)

Gas Alternate Name Formula 1998 Level Increase since 1750 Radiative forcing (Wm-2)
CFC-11 Trichlorofluoromethane (CFCl3) 268ppt 268ppt 0.07
CFC-12 Dichlorodifluoromethane (CF2Cl2) 533ppt 533ppt 0.17
CFC-13 Chlorotrifluoromethane (CClF3) 4ppt 4ppt 0.001
CFC-113 1,1,1-Trichlorotrifluoroethane (C2F3Cl3) 84ppt 84ppt 0.03
CFC-114 1,2-Dichlorotetrafluoroethane (C2F4Cl2) 15ppt 15ppt 0.005
CFC-115 Chloropentafluoroethane (C2F5Cl) 7ppt 7ppt 0.001
Carbon tetrachloride Tetrachloromethane (CCl4) 102ppt 102ppt 0.01
1,1,1-Trichloroethane Methyl chloroform (CH3CCl3) 69ppt 69ppt 0.004
HCFC-141b 1,1-Dichloro-1-Fluoroethane (C2H3FCl2) 10ppt 10ppt 0.001
HCFC-142b 1-Chloro-1,1-Difluoroethane (C2H3F2Cl) 11ppt 11ppt 0.002
Halon-1211 Bromochlorodifluoromethane (CClF2Br) 3.8ppt 3.8ppt 0.001
Halon-1301 Bromotrifluoromethane (CF3Br) 2.5ppt 2.5ppt 0.001

(Source: IPCC radiative forcing report 1994 updated (to 1998) by IPCC TAR table 6.1 See also

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