As per the report of UN weather expert’s ozone layer over the Arctic region is in critical stage. The layer that protects Earth from harmful ultraviolet (UV) rays is getting thinner and thinner because of the excessive use of harmful chemicals in day to day life.
In order to protect the ozone depletion, in year 1887 a treaty was signed after notifying a hole over Antarctic to reduce the uses of the chemicals like Halons and Chlorofluorocarbons. But, the harmful chemical which was already released into the atmosphere continued to degrade the protective ozone layer for decades.
The World Meteorological Organization (WMO) has revealed that the region over the Arctic region has registered a 40 per cent loss from the start of winter to the late March,2011, which is 10 per cent more that of 2010. The excessive loss was due to presence of chemicals and excessive cold winter.
The ozone layer is now thinner than ever over the Arctic and it will result in the harmful exposure of UV radiation to the areas of Greenland, Scandinavia and Siberia.
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