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Global summit to strike deal on phase-out of HFCs

October 10, 2016

Global summit to strike deal on phase-out of HFCs

John Vidal
Monday 10 October 2016 16.30 BST

Governments will address the law of unintended consequences when they meet this week to revise a global treaty and try to eliminate the use of a group of greenhouse gases used in fridges, inhalers and air conditioners.

Hydrofluorocarbons (HFCs) were hailed as the answer to the hole in the ozone layer which appeared over Antarctica in the 1980s because they replaced hundreds of chemical substances widely used in aerosols which depleted the thin layer of ozone which protects the Earth from harmful rays of the sun.

One hundred and ninety-seven countries signed the historic 1987 agreement which phased out chlorofluorocarbons (CFCs) and similar hydrochlorofluoro carbons (HCFCs) and has seen gradual closure of the two polar ozone holes.

But concern has been mounting at how their substitute is undermining the landmark Paris climate agreement and could hamper attempts to keep global warming below dangerous levels.

Read more at The Guardian.

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