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T1 The Impact of Ozone-Layer Depletion - UNEP/GEMS Environment Library No. 7
A1 United Nations Environment Programme, 
K1 ozone-depleting substance
K1 ozone layer
K1 Antarctica
K1 ultraviolet radiation
K1 cancer
K1 air pollution
K1 refrigeration
K1 recycling
K1 Antarctic
YR 1992
FD 1992
LK https://wedocs.unep.org/handle/20.500.11822/29131
UL https://wedocs.unep.org/handle/20.500.11822/29131
NO The ozone layer that has shielded the Earth from damaging ultraviolet radiation since life began is diminishing. This is caused by the use we have made, over the past 60 years, of the ozone layer depleting substances, particularly CFCs and halons. Even if all such substances were banned tomorrow, we would still be committed to further ozone destruction throughout the next century because of the long-lived chemicals already released into the atmosphere. In fact, on the basis of phase-out dates laid down in the Montreal Protocol, it will take until about 2130 for these man-made compounds to disappear completely from the atmosphere.
DS UN Environment Document Repository
RD Sep 17, 2026