A large iceberg has broken away from Antarctica's Amery ice shelf, in a natural process scientists call a 'calving' event.
the ocean both thought to be caused by anthropogenic warming. However, the Amery Ice Shelf in particular is an area not yet thought to have been significantly impacted by the phenomenon.
Though this file photo from 2017 was from NASA's Operation Icebridge, looking at how polar ice has evolved over the last decade, the recent iceberg breaking is a natural event, unrelated to climate change.The loss of D28 instead occurred due to a natural ice shelf process, called a"calving event.
D28 had been adjacent to a part of the ice shelf scientists had been predicting would break away from the continent for nearly two decades, known as"Loose Tooth." The area held the nickname due to satellite images thought to resemble a crooked tooth hanging from the"mouth" of the surrounding ice. Its significantly smaller companion D28 is part that broke away, but Loose Tooth is still attached to the shelf, despite scientists having predicted in 2002 it would break off between 2010 and 2015.
"It is the molar compared to a baby tooth," Scripps Institution of Oceanography Professor Helen Frick."I am excited to see this calving event after all these years. We knew it would happen eventually, but just to keep us all on our toes, it is not exactly where we expected it to be."
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