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Climate Change, Two Ice Sheets in Canada Completely Disappear



The latest satellite images taken by NASA show surprising results from conditions in the Arctic. Two ‘ice caps’ in Nunavut, Canada, are melting.

Reporting from IFL Science, the St. Patrick Bay ice sheet has been shrinking for decades, but now it is completely invisible in photos taken by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), on July 14, 2020.

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Located in the Hazen Plateau on Ellesmere Island, the St Patrick Bay ice sheet has been the subject of a study published in the journal The Cryosphere, 2017. The study confirmed the shrinkage of the amount of ice there.

At that time, researchers compared aerial photographs of ice sheets taken for 60 years. The results show how the ice covered an area of ​​7.48 square kilometers and 2.93 square kilometers in 1959. However, in 2015, each ice sheet melted and only 5% of the initial size.

Mark Serreze, director of the National Snow and Ice Data Center (NSIDC) who was the leader of the study, predicted that the ice sheet could completely disappear within five years.

And now, the latest satellite images reaffirm these terrible predictions. There's absolutely no St. Patrick Bay ice there.

"We know that when climate change occurs, the effect will be felt in the Arctic," Serreze said.

"When I first saw the ice sheet, they were like a permanent feature there. Seeing him disappear in less than 40 years really surprised me, "he added.

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The melting of the St. Patrick Bay ice sheet is caused by rising global temperatures triggered by climate change due to human activity. It was previously known that ice in the Arctic melted twice as fast as in other regions.

Between 2000 and 2015, the average temperature on Ellesmere Island increased by 1 ° C. Scientists are now worried that the Murray and Simmons ice sheets, also located on the Hazen Plateau, will experience the same thing.

Both of these ice sheets are located in an area higher than St. Patrick Bay, so they melt more slowly. However, if temperatures in the Arctic continue to rise, then it is likely they will disappear too.


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