In accordance with Articles 4 and 12 of the Convention, and the relevant decisions of the Conference of the Parties, Parties to the Convention submit national greenhouse gas inventories to the Climate Change secretariat. These inventory data are provided in the national communications under the Convention by Annex I and non-Annex I Parties, and in addition Annex I Parties submit national greenhouse gas inventories annually.

The GHG data tables contain estimates for:

• CO2 - Carbon dioxide
• CH4 - Methane
• N2O - Nitrous oxide
• PFCs - Perfluorocarbons
• HFCs - Hydrofluorocarbons
• SF6 - Sulphur hexafluoride