WHILE the debate on global warming
-continues, the detection of an astounding 45 per cent depletion of the mone
layer, over an area stretching froth
Greenland to western Siberia, gives
atmospheric scientists MoTe woorries.
The discovery was repwted by the
World Meteorological Organization, a
United Nations agetcy, in Geilmeva,
Switzerland, on, March 12.
However, the ageAcy a4w stated that the ozone layer, which wa@-, briietl deple ted over the saidairea@, was not, in the same league a& the alarmiiig, ozone hole over Antarctica. The period ofdeplotion occured from midile of4 January, this, year to early last month, While, the depletion hovere&around'20)tQ-30)per cent, for a few days, it fell to as low as 45 per cent. Apparently, a fall in temperature led to the formation of stratospheric clouds, which, aided by the presence of chlorine and bromine compounds, led to the depletion of the ozone layer.
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