11. What impact do CFCs have on the environment?

Answer 1

CFCs (chlorofluorocarbons) have a significant impact on the environment, particularly on the ozone layer. When released into the atmosphere, CFCs break down and release chlorine atoms, which then react with ozone molecules in the stratosphere. This reaction depletes the ozone layer, which plays a crucial role in protecting Earth from harmful UV radiation.

The depletion of the ozone layer can result in various negative effects, such as increased rates of skin cancer, cataracts, and weakened immune systems in humans, as well as harm to marine life and ecosystems. Additionally, the increased UV radiation reaching the Earth can also have detrimental effects on agriculture and vegetation.

In response to the environmental impact of CFCs, the Montreal Protocol was adopted in 1987 to phase out the production and use of these substances. Since then, significant progress has been made in reducing CFC emissions, resulting in a gradual recovery of the ozone layer. However, continued efforts are needed to fully repair the damage and prevent further harm to the environment.