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A23a: Biography of an Iceberg

Forty years ago A23a, an iceberg twice the size of Los Angeles broke off from the Antarctic ice shelf and began its journey into the Southern Ocean. As A23a reaches its final chapter, glaciologist Catherine Walker charts the life and death of a megaberg.

An Overcoat Media production.

27 minutes

On radio

Next Thursday 01:32GMT
BBC World Service

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