Rising HFC use poses a significant threat to intergovernmental efforts to combat climate change. At present, there is a glaring regulatory gap in this area. Although challenging, there is no reason why the international community cannot come together to address this new problem of coordination and ensure that legal regimes support each other.
Hydrofluorocarbons (HFCs) are replacements for many of the chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) currently being phased out under the Montreal Protocol on Substances that Deplete the Ozone Layer. Unlike those ozone-depleting substances (ODS), HFCs do not destroy the ozone layer, but they are very powerful greenhouse gases (GHGs) – up to thousands of times more damaging to the climate than carbon dioxide – and their use is currently growing faster than any other category of GHGs. Projections show HFC use increasing as much as 30-fold by 2050, adding up to 0.1°C of global average temperature rise by mid-century, and increasing up to five-fold, to 0.5°C, by 2100. This clearly makes it more difficult to limit the rise in global temperature to the internationally agreed ceiling of 2°C – and thereby avoid dangerous climate change – by the end of the 21st century.
See full Article: http://www.chathamhouse.org/publication/global-response-hfcs
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