Washington: The melting of Antarctica’s ‘Doomsday Glacier’ could lead to a major rise in the world’s sea level. This glacier is named because of its rapid melting, which means cataclysm. Its original name is Thwaites Glacier. Now scientists are concerned that the rate of its melting may be faster than expected, which will lead to a big change in sea level. Antarctica’s Thwaites Glacier (Doomsday Glacier) is capable of raising sea level by several feet. Its size is equal to that of Britain. Amidst such concerns, due to the rising temperature of the earth, this glacier is melting from the bottom to the top of the sea.
In a study published in Nature Geoscience, scientists have done historical mapping of glaciers to know how the glacier will be in the future. In this he found that in two centuries the base of the glacier separated from the sea. Since then it has been melting every year at the rate of 2.1 km. This is more than double the rate scientists have observed in the past decade.
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Sea level may rise by 3 feet
Alistair Graham, the lead author of this research and a marine geophysicist at the University of South Florida, said that in the middle of the 20th century, this glacier rapidly disappeared. But there is a possibility of this glacier melting even more rapidly in the future. If this glacier melts completely, then according to an estimate, a rise in sea level of up to three feet is possible. Due to this, there will be a big loss to the countries connected with the coastal areas. If we talk about the damage, then it can be understood that in the last three decades, the sea level has risen by less than a foot and many areas of the world have seen heavy floods due to this change. If this glacier melts completely, then we may have to redraw the sea boundary.
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Big changes will happen in a small time
Study co-author Robert Larter, a marine geophysicist and study co-author from the British Antarctic Survey, said the Thwaites Glacier is indeed a cause for concern and the coming future could see large-scale changes in a short period of time. Its effect can be seen only next year. Alistair Graham said the findings contradict earlier assumptions that the Antarctic ice sheet would slowly melt. The team will take sediment samples in the coming time for an accurate estimate of the time.