We all are very much familiar with the
term " Ozone Layer ". Everyday we see this
term either in the newspaper or in the television but do we know anything more
that. I mean, do we know the current status of the ozone layer which encircle
the earth and protect us from the harmful UV radiations.
During the 1980s ozone layer was depleting
at a very fast rate due to excessive use of Chlorofluoro carbons (CFCs) by the
industries and to get over with this problem Montreal Protocol was signed.The main
aim of this protocol was to regulate the use of various substances and
chemicals that led to the depletion of the ozone layer.
It was signed initially by only 46
countries but it now has nearly 200 signatories and that shows the importance
of this treaty as it has grown to this level over the couple of years.
During the 1970s various chemists
theorised that chlorofluorocarbon (CFC) compounds combine with solar raadiation
and decompose in the layer and this releases chlorine atoms and chlorine
monoxide that can destroy ozone molecules.
After this CFC based aerosols were banned
in various part of the world so that its effect can be minimised.
And then the most tragic discovery took place
in the year 1985 and that discovery was the discovery of the “hole” in the ozone layer over
Antarctica.
The condition is not that good and we need to focus on that. Every country has to take necessary steps to tackle this problem otherwise this place will become hell to live further. Life will be difficult to exist anymore on Earth.
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