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).
- Carbon credits
- Carbon dioxide equivalent
- Carbon footprint
- Carbon tax
- Corporate social responsibility
- Greenhouse Gas Protocol
- Kyoto Protocol
- Montreal Pledge
- Streamlined Energy and Carbon Reporting