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Uploaded on Tuesday 21 Feb 2012 by GRID-Arendal

Ozone hole size 1980–2006

Year: 2007
From collection: Vital Ozone Graphics
Author: Emmanuelle Bournay, UNEP/GRID-Arendal
The extent of ozone depletion for any given period depends on complex interaction between chemical and climatic factors such as temperature and wind. The unusually high levels of depletion in 1988, 1993 and 2002 were due to early warming of the polar stratosphere caused by air disturbances originating in mid-latitudes, rather than by major changes in the amount of reactive chlorine and bromine in the Antarctic stratosphere.
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