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Published online 3 March 2004 | Nature | doi:10.1038/news040301-5

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Climate change set to poke holes in ozone

Arctic clouds could make ozone depletion three times worse than predicted.

The thinning of the ozone layer over the Arctic could be much worse than we thought, because of a side-effect of global warming.

If the upper reaches of the Arctic atmosphere get colder - a predicted consequence of climate change - then the rate of ozone depletion could be three times greater than currently forecast, according to Markus Rex of the Alfred Wegener Institute for Polar and Marine Research in Potsdam, Germany, and his co-workers.

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