The Impact of Ozone-Layer Depletion - UNEP/GEMS Environment Library No. 7
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Date
19921992
Author
United Nations Environment Programme
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RT Generic T1 The Impact of Ozone-Layer Depletion - UNEP/GEMS Environment Library No. 7 A1 United Nations Environment Programme YR 1992 , 1992 LK https://wedocs.unep.org/20.500.11822/29131 PB AB TY - GEN T1 - The Impact of Ozone-Layer Depletion - UNEP/GEMS Environment Library No. 7 AU - United Nations Environment Programme Y1 - 1992, 1992 UR - https://wedocs.unep.org/20.500.11822/29131 PB - AB - @misc{20.500.11822_29131 author = {United Nations Environment Programme}, title = {The Impact of Ozone-Layer Depletion - UNEP/GEMS Environment Library No. 7}, year = {1992 , 1992}, abstract = {}, url = {https://wedocs.unep.org/20.500.11822/29131} } @misc{20.500.11822_29131 author = {United Nations Environment Programme}, title = {The Impact of Ozone-Layer Depletion - UNEP/GEMS Environment Library No. 7}, year = {1992 , 1992}, abstract = {}, url = {https://wedocs.unep.org/20.500.11822/29131} } TY - GEN T1 - The Impact of Ozone-Layer Depletion - UNEP/GEMS Environment Library No. 7 AU - United Nations Environment Programme UR - https://wedocs.unep.org/20.500.11822/29131 PB - AB -View/Open
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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.
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