NAIIS-User-Manual.Docx Page 48 07/08/2013 
Annex	3:		Global	Warming	Potentials	(GWPs)	
 
Greenhouse gas Chemical formula 1995 IPCC GWP
Carbon dioxide CO 2 1 
Methane CH 4 21 
Nitrous oxide N 2O 310 
HFC-23 CHF 3 11,700 
HFC-32 CH 2F2 650 
HFC-41 CH 3F 150 
HFC-43-10mee C 5H2F10 1,300 
HFC-125 C 2HF5 2,800 
HFC-134 C 2H2F4 1,000 
HFC-134a CH 2FCF3   1,300 
HFC-152a C 2H4F2 140 
HFC-143 C 2H3F3 300 
HFC-143a CF 3CH3 3,800 
HFC-227ea C 3HF7 2,900 
HFC-236fa C 3H2F6 6,300 
HFC-254ca C 3H3F5 560 
Perfluoromethane CF 4 6,500 
Perfluroethane C 2F6 9,200 
Perfluoropropape C 3F8 7,000 
Perfluorobutane C 2F10 7,000 
Perfluorocyclobutane c-c 4F8 8,700 
Perfluoropentane C 5F12 7,500 
Perfluorohexane C 6F14 7,400 
Sulphur hexafluoride SF 6 23,900 
Source: Climate Change 1995, The Science of Climate Change: Summary for Policymakers and Technical 
Summary of the Working Group I Report, page 22.