There is scientific evidence that CFCs contribute to the depletion of ozone. Why?

Chlorofluorocarbons (CFCs) are synthetic chemicals used in refrigeration, air conditioning, aerosol sprays, and foam products. They contribute to ozone depletion because:

1. CFCs are Stable and Reach the Stratosphere: CFCs do not break down in the lower atmosphere and slowly rise to the stratosphere.

2. UV Radiation Breaks Down CFCs: When CFCs reach the stratosphere, UV radiation breaks them down, releasing chlorine (Cl) atoms.

3. Chlorine Destroys Ozone: The released chlorine reacts with ozone (O₃), breaking it down into oxygen molecules (O₂).

4. Continuous Cycle: A single chlorine atom can destroy thousands of ozone molecules, leading to significant ozone layer thinning.

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