Eyewitness
Eyewitness
What we learnt flying over the world’s largest iceberg A23a – and why it’s not long for this world
Flying over the massive iceberg, it's indistinguishable from the horizon. But as it melts, chunks of ice risk floating towards South Georgia, presenting a problem for some of its penguins, seals and seabirds.

The massive iceberg has run aground around 50 miles off the small island of South Georgia



The iceberg is around 50 miles from these dramatic peaks in South Georgia

Large chunks of ice have broken off

The view over South Georgia

Cracks are appearing along the edges of A23a

The warmer ocean is undercutting the ice, weakening it further

Arches have formed at its base and are being eroded away

Scientists who have used satellites to track the iceberg's decades-long path

The iceberg has run aground off South Georgia
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