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

Question: Why is damage to the ozone layer a cause for concern? What are its causes and what steps are being taken to limit this damage?

The correct answer is :

Damage to the ozone layer is a cause for concern because the ozone layer shields the surface of earth from harmful UV radiations from the sun which cause skin cancer in human beings. Synthetic chemicals like chlorofluorocarbons (CFCs) which are used as refrigerants and in the fire – extinguishers are the main reason for the depletion of the ozone layer. Steps taken to limit this damage – Many developing and developed countries have signed and are obeying the directions of UNEP (United Nations Environment Programme) to freeze or limit the production and usage of CFCs at 1986 levels