Why is damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?
Ozone layer is like a protective shield for the earth. It wards off harmful ultraviolet radiations coming from the sun. Damage to this layer can result in increased level of ultraviolet radiations filtering into our atmosphere. This would prove to be dangerous for all life forms.
In 1987, UNEP succeeded in bringing 24 countries together to sign a contract. It is known as the famous ‘Montreal Protocol’. The Montreal Protocol highlighted the substances that cause depletion of the ozone Layer. The protocol asked the nations to limit the use of CFCs, halons and other man-made Ozone Depleting Chemicals (ODCs). It also asked the nations to look for alternate technology to replace CFCs.