‘Megaberg’ known as A23a, which once weighed nearly a trillion tonnes and was twice the size of Greater London, is melting in the South Atlantic
Nearly 40 years after breaking off Antarctica, a colossal iceberg ranked among the oldest and largest ever recorded is finally crumbling apart in warmer waters, and could disappear within weeks.
Earlier this year, the “megaberg” known as A23a weighed a little under a trillion tonnes and was more than twice the size of Greater London, a behemoth unrivalled at the time.
The gigantic slab of frozen freshwater was so large it even briefly threatened penguin feeding grounds on a remote island in the South Atlantic Ocean, but ended up moving on.
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