CFCs (chlorofluorocarbons)

Chlorofluorocarbons (CFCs) are chemical compounds made of chlorine, fluorine, and carbon. They were commonly used in refrigeration, air conditioning, aerosol sprays, and foam production due to their stability and non-flammability. However, when released into the atmosphere, CFCs rise to the stratosphere where they release chlorine atoms upon exposure to UV radiation. These chlorine atoms destroy ozone molecules, which form a protective layer filtering harmful UV rays from the sun. The depletion of ozone increases the risk of skin cancer and environmental damage. Due to these harmful effects, the production of CFCs has been phased out under international agreements like the Montreal Protocol.