In rare good news for the environment, a UN report confirmed Monday that the hole in the ozone layer that had been threatening Earth since the 1980s is shrinking.
PARIS, France –
The discovery of a large hole in the gaseous shield that protects life on Earth from ultraviolet radiation triggered global alarm and action.– 1975-84: hole above Antarctic – This “hole”, which habitually appears during the southern hemisphere spring, complements the findings of two University of California chemists, Mario Molina and Sherwood Rowland.
The United States, which had banned the use of CFCs in aerosols in 1978, ratifies the convention in 1986.The Vienna accord paves the way for the landmark Montreal Protocol two years later, which sets targets for phasing out the production and consumption of ozone-depleting substances.
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