Experts at a climate change conference in Coppengagen claimed that the sea level could rise by more than a meter (a little over three feet) by 2100. The rise in global sea levels would be attributed to the melting of polar ice and the expansion of water due to global temperature increase. This could potentially displace as much as 10% of the world’s population (600 million people).
From 1961-199, the sea rose at an average rate of 1.8 mm per year; between 1993-2003, the sea level rose at an average rate of 3.1 mm/ year. Wheter or not the increased rate shows a trend, scientists are unsure.
There are two main factors that contributed to the increase rate: 1) Thermal Expansion: as ocean water warms, it expands. 2) Melting of land based ice, which accounts for a large percentage of water stored on land.
Though it is unconfirmed, it is suspected that long-term sea level rise will continue for centuries to come. It is projected that the sea-level will rise 1 meter within the next 100 years.
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