Ice shelves in general have episodic carvings and there can be large icebergs breaking off – I’m talking 100km or 200km long – every 10 or 20 or 50 years.

Ice shelves in general have episodic carvings and there can be large icebergs breaking off – I’m talking 100km or 200km long – every 10 or 20 or 50 years.

Sea ice conditions have remained stable in Antarctica generally.