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Ozone Layer

What are HFC greenhouse gases? A factfile

Hydrofluorocarbon (HFC) gases are set to be phased out under a historic international deal that experts say could do a huge amount to curb global warming. What are they? HFCs are part of a family called F-gases, which have fluorine as a common component. They are mainly used in refrigeration, air conditioners and aerosols. They are cousins of chlorofluorocarbons (CFCs) -- a notorious substance that depletes the ozone layer, the thin gaseous shield that protects life on Earth from dangerous solar rays. Why are they being…