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Antarctic ice-sheet melting to lift sea level higher than thought


5 May in 2:00
Eurasia Review
Global sea level rise associated with the possible collapse of the West Antarctic Ice Sheet has been significantly underestimated in previous studies, meaning sea level in a warming world will be greater than anticipated, according to a new study from Harvard researchers.
According to
Eurasia Review, the report, published in Science Advances, features new calculations for what researchers refer to as a water expulsion mechanism. This occurs when the solid bedrock the West Antarctic Ice Sheet sits on rebounds upward as the ice melts and the total weight of the ice sheet decreases. The bedrock sits below sea level so when it lifts, it pushes water from the surrounding area into the ocean, adding to global sea level rise. ....

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The FINANCIAL - Antarctic Ice Sheet melting to lift sea level higher than thought, study says


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The FINANCIAL New calculations show the rise due to warming would be 30% above forecasts, according to Harvard University. Global sea-level rise associated with the possible collapse of the West Antarctic Ice Sheet has been significantly underestimated in previous studies, meaning the sea level in a warming world will be greater than anticipated, according to a new study from Harvard researchers.
The report, published in Science Advances, features new calculations for what researchers refer to as a water-expulsion mechanism. This occurs when the solid bedrock the West Antarctic Ice Sheet sits on rebounds upward as the ice melts and the total weight of the ice sheet decreases. The bedrock sits below sea level, so when it lifts it pushes water from the surrounding area into the ocean, adding to global sea-level rise. ....

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The sea-level rise from Antarctica's melting ice sheet could be 30% higher than estimated due to an effect scientists previously thought was 'inconsequential,' new study says


The sea-level rise from Antarctica s melting ice sheet could be 30% higher than estimated due to an effect scientists previously thought was inconsequential, new study says
mguenot@businessinsider.com (Marianne Guenot)
© Adam Jenkins, National Science Foundation/Via International Thwaites Glacier Collaboration
A ship in the waters next to the Thwaites Glacier in Western Antarctica. Adam Jenkins, National Science Foundation/Via International Thwaites Glacier Collaboration
Scientists say if the West Antarctica Ice sheet were to collapse, global sea levels could rise by about 10 feet.
But a new study says that this figure could be about 3.3 feet higher.
That is because as the glaciers melt, the bedrock under the ice sheet could rise out of the ocean. ....

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Harvard study says potential collapse of ice sheet in Antarctic will result in sea level rise


Ice sheet collapse in Antarctic would result in more sea level rise than expected, Harvard study finds
By Charlie McKenna Globe Correspondent,Updated May 4, 2021, 3:27 p.m.
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The Thwaites Glacier in the West Antarctic.AP
The global sea level will rise higher than previously expected if the West Antarctic Ice Sheet collapses, according to a new study from Harvard researchers.
The study, published in the journal Scientific Advances on April 28, was led by graduate students Linda Pan and Evelyn Powell.
Pan and Powell found the ocean level would rise an additional meter, about 3 feet, higher than previously predicted over the next 1,000 years if the ice sheet collapses entirely. ....

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