An iceberg, containing 315 billion tonnes of ice, broke off Antarctica last week, but scientists say it is part of a normal cycle and is not related to climate change
This file photograph shows a NASA image released on December 20, 2017, and taken November 29, 2017, by Operation IceBridge during a flight to Victoria Land, shows an iceberg floating in Antarctica's McMurdo Sound.
The iceberg, dubbed D28, broke away from the Amery ice shelf between September 24 and 25, according to observations from European and American satellites.It is about 210 metres thick and contains 315 billion tonnes of ice, American glaciologist Helen Amanda Fricker said. "Ice shelves have to lose mass because they gain mass. They want to stay the same size," said Fricker, a professor at the Scripps Institution of Oceanography at the University of California.
The east of Antarctica – where D28 broke off – is different from the west of the continent and Greenland, which are rapidly warming due to climate change.
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