Neat News 736 (added 2018-01-05)

Ozone Layer Recovering

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In 1989 the Montreal Protocol came into effect in order to protect the ozone layer against cholor-flurocarbons (so-called CFCs) which were used in fridges. The amount of CFCs is slowly declining at a rate of 0.8% per year on average, however, there is a lot of year-to-year variability in this. Still the Montreal Protocol is working and the ozone destruction is decreasing.

News seen at: Ars Technica - Science