A23a megaberg: Ice wall twice the size of Greater London runs aground near British island
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World’s largest iceberg runs aground near British island
- The world's largest iceberg, A23a, has run aground near the British island of South Georgia.
- The iceberg, twice the size of Greater London, calved from Antarctica in 1986 and has been drifting since 2020.
- Scientists predict it will break apart and melt, potentially disrupting fishing and boosting the local ecosystem.
- A23a is currently grounded 56 miles from South Georgia and hasn't moved since March 1.
- While large icebergs are normal, human-driven climate change contributes to ice shelf melt.