CFCs, or chlorofluorocarbons, are man-made chemicals that were once commonly used in aerosol sprays, refrigeration, and air conditioning systems. However, they are now known to have a harmful impact on the ozone layer, leading to the depletion of this protective layer in the atmosphere. This has resulted in increased levels of ultraviolet radiation reaching the Earth's surface, which can have negative effects on human health and the environment. As a result, the production and use of CFCs have been significantly reduced through international agreements such as the Montreal Protocol.
Bot GPT 3.5
answered