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 04 June 2007
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Greenhouse Gases

The Kyoto Protocol addresses emissions of the six greenhouse gases below.

Greenhouse Gases

GasGlobal Warming Potential (GWP)

Carbon dioxide (CO2)

1

Methane (CH4)

23

Nitrous oxide (N2O)

296

Hydrofluorocarbons (HFCs)

12 - 12,000

Perfluorocarbons (PFCs)

5,700 – 11,900

Sulphur hexafluoride (SF6)

22,200

Data source: Third Assessment IPCC report, 2001

Earlier IPCC reports present different figures for GWP.

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