IPCC list of greenhouse gases

This is a list of LLGHG (long-lived greenhouse gases) greenhouse gases as used by the IPCC TAR.

Gases relevant to radiative forcing only (per IPCC documentation)

The following table has its sources in Chapter 2, pg 141, Table 2.1. of the IPCC Fourth Assessment Report, 2007.

Mole fractions: μmol/mol = ppm = parts per million (10⁶); nmol/mol = ppb = parts per billion (10⁹); pmol/mol = ppt = parts per trillion (10¹²).

	Mole fractions and their changes		Radiative Forcing
Species	2005	Change since 1998	2005 (W m–2)	1998 (%)
CO2	379 ± 0.65 μmol/mol	+13 μmol/mol	1.66	+13
CH4	1,774 ± 1.8 nmol/mol	+11 nmol/mol	0.48	-
N2O	319 ± 0.12 nmol/mol	+5 nmol/mol	0.16	+11
CFC-11	251 ± 0.36 pmol/mol	–13	0.063	–5
CFC-12	538 ± 0.18 pmol/mol	+4	0.17	+1
CFC-113	79 ± 0.064 pmol/mol	–4	0.024	–5
HCFC-22	169 ± 1.0 pmol/mol	+38	0.033	+29
HCFC-141b	18 ± 0.068 pmol/mol	+9	0.0025	+93
HCFC-142b	15 ± 0.13 pmol/mol	+6	0.0031	+57
CH3CCl3	19 ± 0.47 pmol/mol	–47	0.0011	–72
CCl4	93 ± 0.17 pmol/mol	–7	0.012	–7
HFC-125	3.7 ± 0.10 pmol/mol	+2.6	0.0009	+234
HFC-134a	35 ± 0.73 pmol/mol	+27	0.0055	+349
HFC-152a	3.9 ± 0.11 pmol/mol	+2.4	0.0004	+151
HFC-23	18 ± 0.12 pmol/mol	+4	0.0033	+29
SF6	5.6 ± 0.038 pmol/mol	+1.5	0.0029	+36
CF4 (PFC-14)	74 ± 1.6 pmol/mol	-	0.0034	-
C2F6 (PFC-116)	2.9 ± 0.025 pmol/mol	+0.5	0.0008	+22

The older data from 1998 has been left for reference.

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)	365 μmol/mol	87 μmol/mol	1.46	0.819
Carbon Monoxide	Carbonic Oxide	(CO)	11.1 μmol/mol	46 nmol/mol	0.89	1.013
Methane	Marsh gas	(CH4)	1,745 nmol/mol	1,045 nmol/mol	0.48	2.191
Nitrous oxide	Laughing gas	(N2O)	314 nmol/mol	44 nmol/mol	0.15	0.88
Tetrafluoromethane	Carbon tetrafluoride	(CF4)	80 pmol/mol	40 pmol/mol	0.003	1.33
Hexafluoroethane	Perfluoroethane	(C2F6)	3 pmol/mol	3 pmol/mol	0.001	0.067
Sulfur hexafluoride	Sulfur fluoride	(SF6)	4.2 pmol/mol	4.2 pmol/mol	0.002	0.074
HFC-23*	Trifluoromethane	(CHF3)	14 pmol/mol	14 pmol/mol	0.002	0.064
HFC-134a*	1,1,1,2-tetrafluoroethane	0.001(C2H2F4)	7.5 pmol/mol	7.5 pmol/mol	0.001	0.007
HFC-152a*	1,1-Difluoroethane	(C2H4F2)	0.5 pmol/mol	0.5 pmol/mol	0.000	0.04

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)	268 pmol/mol	268 pmol/mol	0.07
CFC-12§	Dichlorodifluoromethane	(CF2Cl2)	533 pmol/mol	533 pmol/mol	0.17
CFC-13§	Chlorotrifluoromethane	(CClF3)	4 pmol/mol	4 pmol/mol	0.001
CFC-113	1,1,1-Trichlorotrifluoroethane	(C2F3Cl3)	84 pmol/mol	84 pmol/mol	0.03
CFC-114	1,2-Dichlorotetrafluoroethane	(C2F4Cl2)	15 pmol/mol	15 pmol/mol	0.005
CFC-115	Chloropentafluoroethane	(C2F5Cl)	7 pmol/mol	7 pmol/mol	0.001
Carbon tetrachloride	Tetrachloromethane	(CCl4)	102 pmol/mol	102 pmol/mol	0.01
1,1,1-Trichloroethane	Methyl chloroform	(CH3CCl3)	69 pmol/mol	69 pmol/mol	0.004
HCFC-141b	1,1-Dichloro-1-Fluoroethane	(C2H3FCl2)	10 pmol/mol	10 pmol/mol	0.001
HCFC-142b	1-Chloro-1,1-Difluoroethane	(C2H3F2Cl)	11 pmol/mol	11 pmol/mol	0.002
Halon-1211	Bromochlorodifluoromethane	(CClF2Br)	3.8 pmol/mol	3.8 pmol/mol	0.001
Halon-1301	Bromotrifluoromethane	(CF3Br)	2.5 pmol/mol	2.5 pmol/mol	0.001

See also

(Source: IPCC radiative forcing report 1994 updated (to 1998) by IPCC TAR table 6.1 [1]. See also [2].