Greenhouse gas

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Environmental policy.


Greenhouse gases are polluting gases that are generally believed to contribute to excessive warming of the earth ('global warming').

The best-known greenhouse gas is carbon dioxide (CO2).

The other five greenhouse gases covered by the Kyoto Protocol (1997) are:

  • Methane (CH4)
  • Nitrous oxide (N2O)
  • Hydrofluorocarbons (HFCs)
  • Perfluorocarbons (PFCs)
  • Sulphur hexafluoride (SF6)

Other greenhouse gases include water vapour (H2O), ozone (O3), chlorofluorocarbons (CFCs) and nitrogen trifluoride (NF3).

See also

External link