JoNova

A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).


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There have been far bigger Antarctic icebergs than the latest A68 Larson C berg

CNN is  “freaking out” about the latest large iceberg. But John Sutter doesn’t mention that there was an iceberg twice its size in the year 2000 which was 11,000km2, and that as long ago as 1967, two other icebergs of a similar size were recorded. Thanks to John McLean for the links.

UPDATE:  Tony Heller has found a newspaper story about an even bigger one from 1956. This monster iceberg was allegedly 334km x 96km or 32,000 km2.  (h.t John of Cloverdale).

UPDATE #2: Monster bergs are everywhere. Lazzara lists two other massive icebergs as well as B15 that occurred in just 18 months: A38 in Oct 1998 was  7,600km2 and A43 in May 2000 was almost as big as B15, being 9,250km2. h/t WS All three of these were larger than the current “freak”.

When it comes to long term trends in iceberg sizes, the only scientific answer is “who knows”. Satellite records are so short, if a bigger iceberg broke off in say, 1811, how the heck would we find out? Not much is left of an iceberg 100 years later. What kind of proxy could show it ever existed — ancient stone carvings of satellite pics from [...]