Global Warming Update: Record Arctic Ice Gain

[presence]

From OP:

With a few weeks of growth still to occur, the Arctic has blown away the previous record for ice gain this winter. This is only the third winter in history when more than 10 million km² of new ice has formed.

the extent of ice cover is not the best measure of how the fire raging in Earth's attic is affecting sea ice--the total volume of the ice is more important.
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people had argued that 75 to 80 percent ice volume loss was too aggressive. What this new paper shows is that our ice loss estimates may have been too conservative,

http://classic.wunderground.com/blog/JeffMasters/comment.html?entrynum=2352


km³

So are we discussing sea ice or sea surface frost?