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UK Climate Change Programme 2006 - JNCC - Defra

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188<br />

ANNEX H<br />

List of greenhouse gases<br />

Greenhouse gas Lifetime (years) 100 years global<br />

warming potential<br />

Carbon dioxide 50-200 1<br />

Methane 12.23 21<br />

Nitrous oxide 120 310<br />

HFC-23 264 11,700<br />

HFC-32 5.6 650<br />

HFC-41 3.7 150<br />

HFC-43-10mee 17.1 1,300<br />

HFC-125 32.6 2,800<br />

HFC-134 10.6 1,000<br />

HFC-134a 14.6 1,300<br />

HFC-152a 1.5 140<br />

HFC-143 3.8 300<br />

HFC-143a 48.3 3,800<br />

HFC-227ea 36.5 2,900<br />

HFC-236fa 209 6,300<br />

HFC-245ca 6.6 560<br />

Chloroform 0.51 4<br />

Methylene chloride 0.46 9<br />

Sulphur hexafluoride 3,200 23,900<br />

Perfluoromethane 50,000 6,500<br />

Perfluorethane 10,000 9,200<br />

Perfluoropropane 2,600 7,000<br />

Perfluorobutane 2,600 7,000<br />

Perfluoropentane 4,100 7,500<br />

Perfluorohexane 3,200 7,400<br />

Perfluorocyclobutane 3,200 8,700<br />

Trifluoroiodomethane

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