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Uploaded on Tuesday 21 Feb 2012 by GRID-Arendal

The Antarctic hole

Year: 2008 Author: Emmanuelle Bournay, UNEP/GRID-Arendal
Despite progress achieved under the Montreal Protocol, the ozone “hole” over the Antarctic was larger than ever in September 2006. This was due to particularly cold temperatures in the stratosphere, but also to the chemical stability of ozone-depleting substances – it takes about 40 years for them to break down.
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Cryosphere - winter seasons, Northern and Southern Hemispheres
Major research stations in the Arctic
Protected areas, Arctic and Antarctic
Climate change - ice and snow and the albedo effect
Coldwater coral reefs, distribution
Cold places on the Southern Continent
Population and main oil and gas production areas in the Arctic
Temperature increases in the Antarctic due to climate change, 2090 (NCAR-CCM3, SRES A2 experiment)