ISLAMABAD: A UN scientific panel has reported that the ozone layer that shields life from the sun’s cancer-causing ultraviolet rays is beginning to recover.
That is largely because of the phase-out since the 1980s of certain chemicals used in refrigerants and aerosol cans, the panel reported, Press Tv Reported.
The ozone layer had been thinning since the late 1970s.
Man-made chlorofluorocarbons, called CFCs, released chlorine and bromine, which destroyed ozone molecules high in the air. After scientists raised the alarm, countries around the world agreed to a treaty in 1987 that phased out CFCs.
The United Nations calculated in an earlier report that without the pact, by 2030 there would have been an extra two million skin cancer cases a year around the world.
“International action on the ozone layer is a major environmental success story.
This should encourage us to display the same level of urgency and unity to tackle the even greater challenge of tackling climate change,” said WMO Secretary-General Michel Jarraud.
“Now for the first time in this report we say that we see indications of a small increase in total ozone. That means recovery of the ozone layer in terms of total ozone has just started,” said WMO senior scientific officer Geir Braathen.