The world's oldest and largest iceberg, A23a, is defying expectations by not melting and is stuck in an ocean vortex. Scientists are surprised by its resilience and predict it could remain in the same spot for years.
Key Points
A23a is a trillion-ton iceberg twice the size of Greater London
It has been stuck in an ocean vortex and could remain in the same spot for years
Its resilience is surprising scientists, as icebergs of this size typically fragment and melt away
Pros
Provides valuable insights into the behavior of large icebergs
Raises awareness about climate change and its impact on ice levels in Antarctica
Cons
Potential negative impact on weather systems and ecosystems due to persistent low sea ice levels