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A23a: Biography of an Iceberg

Forty years ago A23a, an iceberg twice the size of London 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.

Available now

27 minutes

Last on

Fri 11 Sep 202620:30GMT
BBC Radio 4

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  • Thu 3 Sep 202601:32GMT
    BBC World Service
  • Thu 3 Sep 202608:32GMT
    BBC World Service
  • Thu 3 Sep 202619:06GMT
    BBC World Service except East and Southern Africa & West and Central Africa
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  • Sun 6 Sep 202622:32GMT
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  • Wed 9 Sep 202614:30GMT
    BBC Radio 4
  • Fri 11 Sep 202620:30GMT
    BBC Radio 4