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Friday, July 7, 2017

Rise in sea level went up since 1990s


This is the title of the news item in TOI dated June 28, 2017. What next?

The previously assumed leader of climate change deal, US President withdraws from the Paris Climate deal agreed, by over 200 nations, in December 2015. Now, the movement is without any strong leader to spearhead the compliance of the agreement by the nations.

As per the news item, the annual rate of sea level rise increased to 3.3 mm in 2014 from 2.2 mm in 1993. If it continues at the current rate it will rise to 33 mm in a century! Low lying coasts around the world will be under water.

In-spite of the melting of ice on land and the huge icebergs (floating mass of ice detached from a glacier and carried out to sea) in large quantities, the levels have arisen significantly for the simple reason that the volume created by the melting of ice is more than the volume of the water resulted from the melting of the ice. The space can easily accommodate the water without causing any rise in the sea level.

However, it is necessary that a popular and powerful leader should take up the responsibility to carry on this all important climate agreement so that the rise is contained to avoid flooding of sensitive industrial and nuclear installations which are located on the sea shores.