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Depletion of Ozone layer over the arctic, to worsen
16/Sep/2006: The depletion of the ozone layer over the Arctic and the Antarctic is poised to get worse, before it gets any better, according to a warning issued by the scientists at the World Meteorological Association (WMO), on Friday.
This warning has surprised many environmentalists around the world, who were a bit relaxed after a recent study published in the ‘Journal of Geophysical Research’, which showed that the thinning of ozone layer over the Antarctic had stopped and the ozone layer can be restored to the 1980 levels very soon.
Dr. Geir Braathen of World Meteorological Association said that a serious loss of ozone is expected over the arctic region in future, just like the one’s witnessed in the years 2000, 2004 & 2005. The loss of ozone will depend of the temperatures prevailing in this region. The predictions made at the WMO have been published in the first ‘Arctic Ozone Bulletin’, to mark the International Day for Preservation of Ozone layer, observed today (16th September 2006).
Earlier in August, scientists revealed that climate change and much colder winters in poles enhanced the impact of Chlorofluorocarbons on the ozone layer, which could delay the recovery of ozone layer by many years. Chlorofluorocarbons leaking from abandoned refrigerators in dump yards continue to pose a risk to the ozone layer, despite of the success of the Montreal Protocol that phased out the usage of ozone-depleting products.
The ozone hole over the Arctic is moving constantly unlike the hole over Antarctic, exposing the regions in Alaska, Canada, Greenland, Northern Europe and Siberia to harmful ultra-violet radiations from the sun.
A.K.Siva
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