Ozone Depletion timeline

By Caylum

  • 1970 damage to this protective layer caused by atmospheric pollution

  • 1974 chlorofluorocarbons (CFCs), widely used in aerosol spray cans, would seriously damage the ozone layer

  • The ozone layer above the Antarctic has been particularly impacted by pollution since the mid-1980s.

  • 1985- British scientists produced the first direct evidence that this was actually happening.

  • 1987- the combination of continuing cold conditions with sunlight brought the greatest rate of ozone depletion.

  • Spring 2006 discovered ozone levels over Antarctica the thinnst ever observed

  • 1987- agreed to freeze production at 1986 levels and gradually cut it back, eventually eliminating use of the chemicals

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