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

The ozone layer is very important for the existence of life on earth. It prevents the harmful ultraviolet radiations coming from the sun and prevents them from reaching the surface of earth which are extremely harmfull for human beings, other animals as they causes:
1. When fall on the skin causes skin cancer.
2. Whengetin contact with eye causes eye disease called cataract.
3. They are responsible for altering DNA structure causing decrease in the immune system of the body.

The main cause of Ozone layer depletion is mainly because of chlorofluorocarbon emitted by refrigerators and air-conditioners.

In 1987, UNEP signed an agreement to stop the CFC production at 1986 level, amongst its member countries. Montreal Protocol was signed in September 1987 which states to reduce the consumption and production of ozone depleting substances (CFC’s) in order to reduce their quantity in the environment thus protecting the fragile ozone layer. Also, hydro fluorocarbons are being developed as a subsitute of CFC’s because HFC’s do not damage the ozone layer.