30 Apr '14, 11am

Faking it

The historical reconstruction of sea ice extent before 1950 cannot be accurate for the sea ice minimum. Sea ice minimum around 11 million km2? That is what the ice is like now at the end of May. No open water on the north side of Alaska, the Beaufort Sea or in the NorthWest Passage. Why did the Inuit invent whaling boats and kayaks if there was no open water even at the sea ice minimum. How did the last wave of Inuit migrate over from north-western Siberia in whaling boats 1,000 years ago when there was no open water. It does not match history. Drop the numbers down 2 or 3 million km2 at the minimum. [Response: This is sea ice 'extent', not area. Extent includes areas of potential open water within the ~15% concentration contour which is what can be gleaned from pre-satellite observations. Annals of early explorers (see Breton's Arctic Grail) demonstrate that there was sea...

Full article: http://www.realclimate.org/index.php/archives/2014/04/fak...

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