The world's largest iceberg, known as A23a, is now nearing the end of its life - 40 years after it broke off the edge of Antarctica. This "megaberg" was once more than twice the size of Greater London ...

The world’s largest and most enduring iceberg is splintering into smaller pieces, to the point that it’s no longer the biggest chunk of ice floating in the oceans. The shrinking megaberg, known as ...

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