Environmental Effects of Ozone Depletion: UNEP 1997 Interim Summary

Environmental Effects of Ozone Depletion: UNEP 1997 Interim Summary

This summary is the last one between the full assessments of 1994 and 1998 on environmental effects of ozone depletion. The aim is to keep the Parties to the Montreal Protocol informed about new scientific developments. Recent studies have confirmed many of the conclusions of the earlier assessments. In addition, several new findings have been reported. New concerns have been raised by record low ozone, and associated higher UV-B radiation at the Earth's surface, over populated areas of the Northern Hemisphere during late winter and early spring. There are still several areas of effects research where the uncertainty needs to be reduced: for human health these areas include infectious diseases, vaccination efficacy, cataract and melanoma; and for ecosystems, Uncertainties remain with respect to food production, biodiversity, carbon and nutrient cycles, and linkages between biology, chemistry and global climate change. It is clear that several of these research areas require long-term studies for meaningful interpretations to be made.

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