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Environment

Breakaway iceberg raises concerns over Antarctica’s 'doomsday glacier'

A massive iceberg that has been stuck on the seafloor in front of the Thwaites glacier in West Antarctica for two decades and helped protect it is now floating away

By Michael Le Page

11 January 2023

Timelapse satellite photos showing the large iceberg breaking away from the West Antarctic ice shelf

Timelapse satellite photos showing the large iceberg breaking away from the West Antarctic ice shelf

Simon Gascoin, CNRS

A massive iceberg that got stuck and was helping to slow the loss of floating ice from the Thwaites glacier in West Antarctica has come free.

The iceberg, which started out roughly 85 kilometres (53 miles) long and 64 kilometres (40 miles) wide, originally broke away from the floating ice shelf formed by the glacier in March 2002, but got caught in a shallow part of the Amundsen Sea around 100 kilometres away.

Its presence had …

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