The figure shows the emissions of hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulphur hexafluoride (SF6) on Production, Imports, Exports and Consumption from 2007 to 2011. Emissions are provided in Mt CO2 equivalent using the Global Warming Potential values of the 3rd IPCC Assessment report (TAR).
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Global-warming potential (GWP) is a relative measure of how much heat a greenhouse gas traps in the atmosphere.
In this figure the GWP values used are the ones provided by the 3rd IPCC Assessment report (TAR).
Please note that consumption is defined in analogy to the Montreal Protocol as production plus bulk imports minus bulk exports minus feedstock use minus destruction. Negative values refer therefore to the cases where production and imports have been lower than the export, feedstock use and destruction quantities for the specific reporting year.