IPCC list of greenhouse gases
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This is a list of anthropogenic greenhouse gases as used by the IPCC TAR.
[edit] Gases relevant to radiative forcing only (per IPCC documentation)
The following table has its sources in the IPCC Fourth Assessment Report, 2007 [1], pg 141. The older data from 1998 has been left for reference.
| Concentrations and their changes | Radiative Forcing | |||
|---|---|---|---|---|
| Species | 2005 | Change since 1998 | 2005 (W m–2) | 1998 (%) |
| CO2 | 379 ± 0.65 ppm | +13 ppm | 1.66 | +13 |
| CH4 | 1,774 ± 1.8 ppb | +11 ppb | 0.48 | - |
| N2O | 319 ± 0.12 ppb | +5 ppb | 0.16 | +11 |
| CFC-11 | 251 ± 0.36 ppt | –13 | 0.063 | –5 |
| CFC-12 | 538 ± 0.18 ppt | +4 | 0.17 | +1 |
| CFC-113 | 79 ± 0.064 ppt | –4 | 0.024 | –5 |
| HCFC-22 | 169 ± 1.0 ppt | +38 | 0.033 | +29 |
| HCFC-141b | 18 ± 0.068 ppt | +9 | 0.0025 | +93 |
| HCFC-142b | 15 ± 0.13 ppt | +6 | 0.0031 | +57 |
| CH3CCl3 | 19 ± 0.47 ppt | –47 | 0.0011 | –72 |
| CCl4 | 93 ± 0.17 ppt | –7 | 0.012 | –7 |
| HFC-125 | 3.7 ± 0.10 ppt | +2.6 | 0.0009 | +234 |
| HFC-134a | 35 ± 0.73 ppt | +27 | 0.0055 | +349 |
| HFC-152a | 3.9 ± 0.11 ppt | +2.4 | 0.0004 | +151 |
| HFC-23 | 18 ± 0.12 ppt | +4 | 0.0033 | +29 |
| SF6 | 5.6 ± 0.038 ppt | +1.5 | 0.0029 | +36 |
| CF4 (PFC-14) | 74 ± 1.6 ppt | - | 0.0034 | - |
| C2F6 (PFC-116) | 2.9 ± 0.025 ppt | +0.5 | 0.0008 | +22 |
| Gas | Alternate Name | Formula | 1998 Level | Increase since 1750 | Radiative forcing (Wm-2) | Specific heat at STP
(J kg-1) |
|
|---|---|---|---|---|---|---|---|
| Carbon dioxide | Carbonic anhydride | (CO2) | 365ppm | 87ppm | 1.46 | 0.819 | |
| Carbon Monoxide | Carbonic Oxide | (CO) | 11.1ppm | 46ppb | 0.89 | 1.013 | |
| Methane | Marsh gas | (CH4) | 1,745ppb | 1,045ppb | 0.48 | 2.191 | |
| Nitrous oxide | Laughing gas | (N2O) | 314ppb | 44ppb | 0.15 | 0.88 | |
| Tetrafluoromethane | Carbon tetrafluoride | (CF4) | 80ppt | 40ppt | 0.003 | 1.33 | |
| Hexafluoroethane | Perfluoroethane | (C2F6) | 3 ppt | 3ppt | 0.001 | 0.067 | |
| Sulfur hexafluoride | Sulfur fluoride | (SF6) | 4.2ppt | 4.2ppt | 0.002 | 0.074 | |
| HFC-23* | Trifluoromethane | (CHF3) | 14ppt | 14ppt | 0.002 | 0.064 | |
| HFC-134a* | 1,1,1,2-tetrafluoroethane | 0.001(C2H2F4) | 7.5ppt | 7.5ppt | 0.001 | 0.007 | |
| HFC-152a* | 1,1-Difluoroethane | (C2H4F2) | 0.5ppt | 0.5ppt | 0.000 | 0.04 |
[edit] 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-Trichlorotrifluoromethane | (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 [2]. See also [3].
