Response to o-zone dissappearing

we need the o-zone layer to survive because without it we would freeze, it is naturally occuring and untill the industrial revolution there was a healthy balance between carbon dioxide and oxygen. This increase in carbon dioxide and other harmfull gases is largely down to human activities including the combustion of fossil fuels such as coal and oil and the emission of cfc's from fridges and areosoles. Large areas of ozone over the north and south pole have been destroyed but this is not just down to cars but a mixture of contributions.

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