Each halogen atom, such as chlorine, fluorine, and bromine, in the Earth's atmosphere catalyzes the destruction of ozone for a long time ranging from decades to centuries.

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This is a well-established scientific fact known as the ozone depletion phenomenon, where halogen atoms react with ozone molecules and break them down, leading to a thinning of the ozone layer. The ozone layer protects us from harmful ultraviolet radiation from the sun, so its depletion is a cause for concern. Efforts have been made to reduce the emission of substances that deplete the ozone layer, such as chlorofluorocarbons (CFCs) and halons.

Each Halogen Atom, Such as Chlorine, Fluorine, and Bromine, in the Earth's