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Why is damage to the ozone layer a cause...

Why is damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?

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Ozone layer absorbs ultraviolet radiation of the sun which is very harmful to living organisms.
Damage to the ozone layer is a cause for concern because depletion of ozone layer allows harmful ultraviolet radiation to reach to the surface of earth, which may lead to skin cancer, cataract, etc.
To reduce the damage to the ozone layer, use of chlorofluorocarbons has been minimised. In 1987, the UNEP - United Nations Environment Programme has passed an agreement to freeze CFC production at 1986 levels. This will protect the ozone layer and subsequent effects of radiation.
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