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Voluntary Reporting of Greenhouse Gases Program
 

Greenhouse Gases and Global Warming Potentials (GWP)

(From Appendix E of the instructions to Form EIA-1605)

GREENHOUSE GAS NAME

GREENHOUSE GAS CODE

FORMULA

GWP

TAR1

AR42

(1) Carbon Dioxide

CO2

CO2

1

1

(2) Methane

CH4

CH4

23

25

(3) Nitrous Oxide

N2O

N2O

296

298

(4) Hydroflourocarbons

 

 

 

 

HFC-23 (trifluoromethane)

15

CHF3

12000

14800

HFC-32 (difluoromethane)

16

CH2F2

550

675

HFC-41 (monofluoromethane)

43

CH3F

97

-3

HFC-125 (pentafluoroethane)

17

CHF2CF3

3400

3500

HFC-134 (1,1,2,2-tetrafluoroethane)

44

CHF2CHF2

1100

-3

HFC-134a (1,1,1,2-tetrafluoroethane)

18

CH2FCF3

1300

1430

HFC-143 (1,1,2-trifluorethane)

45

CHF2CH2F

330

-3

HFC-143a (1,1,1-trifluoroethane)

46

CF3CH3

4300

4470

HFC-152 (1,2-difluorethane)

47

CH2FCH2F

43

-3

HFC-152a (1,1-difluoroethane)

19

CH3CHF2

120

124

HFC-161 (ethyl fluoride)

48

CH3CH2F

12

-3

HFC-227ea (heptafluoropropane)

20

CF3CHFCF3

3500

3220

HFC-236cb (1,1,1,2,2,3-hexafluoropropane)

49

CH2FCF2CF3

1300

-3

HFC-236ea (1,1,1,2,3,3-hexafluoropropane)

50

CHF2CHFCF3

1200

-3

HFC-236fa (1,1,1,3,3,3-hexafluoropropane)

41

CF3CH2CF3

9400

9810

HFC-245ca (1,1,2,2,3-pentafluoropropane)

21

CH2FCF2CHF2

640

-3

HFC-245fa (1,1,1,3,3-pentafluoropropane)

51

CHF2CH2CF3

950

1030

HFC-365mfc (pentafluorobutane)

52

CF3CH2CF2CH3

890

794

HFC-43-10mee (decafluoropentane)

53

CF3CHFCHFCF2CF3

1500

1640

(5) Perfluorcarbons

 

 

 

 

Perfluoromethane

22

CF4

5700

7390

Perfluoroethane

23

C2F6

11900

12200

Perfluoropropane

42

C3F8

8600

8830

FC 3-1-10 (perfluorobutane)

30

C4F10

8600

8860

Perfluorocyclobutane

54

c-C4F8

10000

10300

Perfluoropentane

51

C5F12

8900

9160

FC 5-1-14 (perfluorohexane)

31

C6F14

9000

9300

(6) Sulfur Hexafluoride

SF6

SF6

22200

22800

(7) Chlorofluorocarbons3

 

 

 

 

CFC-11 (trichlorofluoromethane)

1

CCl3F

-

-

CFC-12 (dichlorodifluoromethane)

2

CCl2F2

-

-

CFC-13 (monochlorotrifluoromethane)

56

CClF3

-

-

CFC-113 (Freon 113)

3

CCl2FCClF2

-

-

CFC-114 (dichlorotetrafluoroethane)

4

CClF2CClF2

-

-

CFC-115 (monochloropentafluoroethane)

5

CF3CClF2

-

-

(8) Other Gases
Nitrogen Trifluoride
NF3 NF3 10800 17200

1 Intergovernmental Panel on Climate Change, Climate Change 2001: The Scientific Basis (Cambridge, UK: Cambridge University Press, 2001). This document was part of the Intergovernmental Panel on Climate Change's (IPCC's) Third Assessment Report (TAR).
2 The IPCC developed revised GWPs for the Fourth Assessment Report (AR4). A complete list of revised GWPs were published in the errata to Climate Change 2007: The Physical Science Basis, Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 996 pp., (http://www.ipcc.ch/pdf/assessment-report/ar4/wg1/ar4-wg1-errata.pdf). 
3 The reporting of CFC emissions on Form EIA-1605 is optional. CFC emissions cannot be included in total inventory emissions since reliable net global warming potentials are not available for these gases. Reductions in CFC emissions may be reported but not registered.