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EXPRESS informed that Antarctica ice is melting faster than expected, with more than 100 metres of thickness vanished in some areas.
“In parts of Antarctica, the ice sheet has thinned by extraordinary amounts,” study lead author and Leeds University Prof. Andy Shepherd said.
Experts have worried that Antarctica ice is melting five times faster. Southern Ocean is resulting in Antarctic glaciers melting increasingly rapidly. And ice is now being lost five times faster than in the 1990s. And more than 320ft (100m) of ice thickness has been lost in the worst-hit places.
According to www.express.co.uk “The West Antarctic ice sheet’s annihilation would drive global sea levels approximately five metres, decimating coastal cities world-wide. The current losses are doubling every decade, the scientists said, and sea level rise are now running at the extreme end of even the most recent estimations”.
Professor Shepherd added the thinning of some ice streams had extended 300 miles inland along their 600-mile length.
He said: “More than 50 percent of the Pine Island and Thwaites glacier basins have been affected by thinning in the past 25 years.
“We are past halfway and that is a worry.”
Researchers already knew that ice was being lost from West Antarctica, but the new work pinpoints where it is happening and how rapidly.
The latest study compared 800 million satellite measurements of ice sheet height from 1992 to 2017 with weather information.
“The speed of drawing down ice from an ice sheet used to be spoken of in geological timescales, but that has now been replaced by people’s lifetimes.” Professor Shepherd added: “In parts of Antarctica, the ice sheet has thinned by extraordinary amounts.”
Source: Text; www.express.co.uk
Image credit; www.express.co.uk
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