IPCC list of greenhouse gases
Encyclopedia
This is a list of LLGHG (long-lived greenhouse gases) greenhouse gas
es as used by the IPCC
TAR.
Mole fractions: μmol/mol = ppm = parts per million (106); nmol/mol = ppb = parts per billion (109); pmol/mol = ppt = parts per trillion (1012).
The older data from 1998 has been left for reference.
radiative forcing report 1994 updated (to 1998) by IPCC TAR table 6.1 http://www.grida.no/climate/ipcc_tar/wg1/221.htm. See also http://cdiac.esd.ornl.gov/pns/current_ghg.html.
Greenhouse gas
A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in the Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone...
es as used by the IPCC
Intergovernmental Panel on Climate Change
The Intergovernmental Panel on Climate Change is a scientific intergovernmental body which provides comprehensive assessments of current scientific, technical and socio-economic information worldwide about the risk of climate change caused by human activity, its potential environmental and...
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 Radiative forcing In climate science, radiative forcing is generally defined as the change in net irradiance between different layers of the atmosphere. Typically, radiative forcing is quantified at the tropopause in units of watts per square meter. A positive forcing tends to warm the system, while a negative... (Wm−2) |
Specific heat at STP (J kg−1) |
|
|---|---|---|---|---|---|---|---|
| Carbon dioxide Carbon dioxide Carbon dioxide is a naturally occurring chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom... |
Carbonic anhydride | (CO2) | 365 μmol/mol | 87 μmol/mol | 1.46 | 0.819 | |
| Carbon Monoxide Carbon monoxide Carbon monoxide , also called carbonous oxide, is a colorless, odorless, and tasteless gas that is slightly lighter than air. It is highly toxic to humans and animals in higher quantities, although it is also produced in normal animal metabolism in low quantities, and is thought to have some normal... |
Carbonic Oxide | (CO) | 11.1 μmol/mol | 46 nmol/mol | 0.89 | 1.013 | |
| Methane Methane Methane is a chemical compound with the chemical formula . It is the simplest alkane, the principal component of natural gas, and probably the most abundant organic compound on earth. The relative abundance of methane makes it an attractive fuel... |
Marsh gas | (CH4) | 1,745 nmol/mol | 1,045 nmol/mol | 0.48 | 2.191 | |
| Nitrous oxide Nitrous oxide Nitrous oxide, commonly known as laughing gas or sweet air, is a chemical compound with the formula . It is an oxide of nitrogen. At room temperature, it is a colorless non-flammable gas, with a slightly sweet odor and taste. It is used in surgery and dentistry for its anesthetic and analgesic... |
Laughing gas | (N2O) | 314 nmol/mol | 44 nmol/mol | 0.15 | 0.88 | |
| Tetrafluoromethane Tetrafluoromethane Tetrafluoromethane, also known as carbon tetrafluoride, is the simplest fluorocarbon . It has a very high bond strength due to the nature of the carbon–fluorine bond. It can also be classified as a haloalkane or halomethane... |
Carbon tetrafluoride | (CF4) | 80 pmol/mol | 40 pmol/mol | 0.003 | 1.33 | |
| Hexafluoroethane Hexafluoroethane Hexafluoroethane is a fluorocarbon counterpart to the hydrocarbon ethane. It is a non-flammable gas negligibly soluble in water and slightly soluble in alcohol.-Physical properties:... |
Perfluoroethane | (C2F6) | 3 pmol/mol | 3 pmol/mol | 0.001 | 0.067 | |
| Sulfur hexafluoride Sulfur hexafluoride Sulfur hexafluoride is an inorganic, colorless, odorless, and non-flammable greenhouse gas. has an octahedral geometry, consisting of six fluorine atoms attached to a central sulfur atom. It is a hypervalent molecule. Typical for a nonpolar gas, it is poorly soluble in water but soluble in... |
Sulfur fluoride | (SF6) | 4.2 pmol/mol | 4.2 pmol/mol | 0.002 | 0.074 | |
| (BJ69>/sub> | 3.2 pmol/mol | 8.66 pmol/mol | 0.002 | 0.005 | 0.097 | ||
| HFC-23 Fluoroform Fluoroform is the chemical compound with the formula CHF3. It is one of the "haloforms", a class of compounds with the formula CHX3 . Fluoroform is used in diverse niche applications and is produced as a by-product of the manufacture of Teflon... * |
Trifluoromethane | (CHF3) | 14 pmol/mol | 14 pmol/mol | 0.002 | 0.064 | |
| HFC-134a 1,1,1,2-Tetrafluoroethane 1,1,1,2-Tetrafluoroethane, R-134a, Genetron 134a, Suva 134a or HFC-134a, is a haloalkane refrigerant with thermodynamic properties similar to R-12 , but with less ozone depletion potential... * |
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 Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon. It is a colorless, nearly odorless liquid that boils at about room temperature.- Uses :It was the first widely used refrigerant... |
Trichlorofluoromethane | (CFCl3) | 268 pmol/mol | 268 pmol/mol | 0.07 |
| CFC-12§ Dichlorodifluoromethane Dichlorodifluoromethane , is a colorless gas, and usually sold under the brand name Freon-12, is a chlorofluorocarbon halomethane , used as a refrigerant and aerosol spray propellant. Complying with the Montreal Protocol, its manufacture was banned in the United States along with many other... |
Dichlorodifluoromethane | (CF2Cl2) | 533 pmol/mol | 533 pmol/mol | 0.17 |
| CFC-13§ Chlorotrifluoromethane Chlorotrifluoromethane, R-13, CFC-13, or Freon 13, is a non-flammable, non-corrosive chlorofluorocarbon and also a mixed halomethane. It is used as a refrigerant, however, due to concerns about its ozone-depleting potential, its use has been phased out due to the Montreal Protocol.-Physical... |
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 1,2-Dichlorotetrafluoroethane, or R-114, is a chlorofluorocarbon with the molecular formula ClF2CCF2Cl. Its primary use has been as a refrigerant. It is a non-flammable gas with a sweetish, chloroform-like odor with critical point at 145.6 °C and 3.26 MPa. When pressurized or cooled,... |
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 Carbon tetrachloride Carbon tetrachloride, also known by many other names is the organic compound with the formula CCl4. It was formerly widely used in fire extinguishers, as a precursor to refrigerants, and as a cleaning agent... |
Tetrachloromethane | (CCl4) | 102 pmol/mol | 102 pmol/mol | 0.01 |
| 1,1,1-Trichloroethane 1,1,1-Trichloroethane The organic compound 1,1,1-trichloroethane, also known as methyl chloroform, is a chloroalkane. This colourless, sweet-smelling liquid was once produced industrially in large quantities for use as a solvent... |
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 Bromochlorodifluoromethane, also known by the trade name Halon 1211, or BCF, or Halon 1211 BCF, or Freon 12B1, is a haloalkane with the chemical formula CF2ClBr.... |
Bromochlorodifluoromethane | (CClF2Br) | 3.8 pmol/mol | 3.8 pmol/mol | 0.001 |
| Halon-1301 Bromotrifluoromethane Bromotrifluoromethane is an organic halide with the chemical formula CBrF3. Alternative names are Halon 1301, R13B1, Halon 13B1 and BTM.- Table of physical properties :- Uses :... |
Bromotrifluoromethane | (CF3Br) | 2.5 pmol/mol | 2.5 pmol/mol | 0.001 |
See also
(Source: IPCCIntergovernmental Panel on Climate Change
The Intergovernmental Panel on Climate Change is a scientific intergovernmental body which provides comprehensive assessments of current scientific, technical and socio-economic information worldwide about the risk of climate change caused by human activity, its potential environmental and...
radiative forcing report 1994 updated (to 1998) by IPCC TAR table 6.1 http://www.grida.no/climate/ipcc_tar/wg1/221.htm. See also http://cdiac.esd.ornl.gov/pns/current_ghg.html.