Short Quotes - Author Ian Allison Showing 1 - 2 of 2 Add Quote 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. Ian Allison Talking Upvote0 Sea ice conditions have remained stable in Antarctica generally. Ian Allison Sea Upvote0