The banning of production and use of CFC all over the world was ratified by the Protocol of Montreal after scientists realized the product was one of the main causes for the hole in the ozone layer.
Excessive radiation causes skin cancer, cataract and loss of immunity in human beings.
It reduces productivity of plants and harms plastic products. Brazil joined the Protocol in 1993. Republication of this content is allowed as long as all copyright and other proprietary rights are reprinted in their entirety.