Ozone layer "is showing signs of recovery", say scientists
September 10, 2014 at 23:02 clock Updated BST
Protective ozone layer of the earth will repair itself, according to a group of scientists from the United Nations.
The main reason for their recovery, they say, is the fact that certain chemicals, such as aerosols, were eliminated in the 1980s.
Roger Harrabin reports.
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