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Thursday, 5 November 2020

An iceberg the size of Delaware and weighing a trillion tons is heading toward the sub-Antarctic island of South Georgia in the Southern Atlantic: The giant iceberg, named A68, has been floating north since it broke off from the Larsen C ice shelf in July 2017

The A68 iceberg looks like a pointed finger. It is 400km off the coast of South Georgia. Credit: Copernicus Sentinel 3 Mosaic / Polar View

A giant iceberg the size of the U.S. state of Delaware is floating toward the sub-Antarctic island of South Georgia, raising fears it could indirectly endanger young wildlife. The British Antarctic Survey said Wednesday it is concerned the iceberg may run aground near the island, preventing land-based marine predators from reaching food supplies and returning to their offspring.

Professor Geraint Tarling, an ecologist with the Antarctic Survey, said it is the time of year when seals and penguins are tending to pups and chicks. The distance penguin and seal parents have to travel to find food is important. If they have to do a big detour, it means they're not going to get back to their young in time to prevent them starving to death in the interim, he said.

The giant iceberg, named A68, has been floating north since it broke off from the Larsen C ice shelf in July 2017, the Antarctic Survey said. South Georgia, located in the southern Atlantic Ocean, is a British overseas territory.

The TRILLION-ton iceberg which is the equivalent of a 64-storey tall building and broken free will NOT raise the world's sea levels.

 The TRILLION-ton iceberg which broke free from Antarctica in 2017 will do nothing to raise the world's sea levels. But it has changed the face of the southern continent forever. "The iceberg weighs more than a trillion tonnes, but it was already floating before it calved away so has no immediate impact on sea level," a Swansea research team said.

The massive ice cube is twice the size of the Australian Capital Territory, four times the size of London and twice the size of Luxembourg. It is about 350 metres thick.
But the 5800 sq km block of ice is not the largest to have 'calved' from Antarctica: an 11,000sq km 'berg' was seen to break loose from the Ross Ice Shelf in 2000.

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1 comment:

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