Another Record for Arctic Sea Ice

Sea ice volume has also reached a record low.

Update (February 15, 2013):  Satellite observations are confirming a University of Washington model that shows summer sea ice volume has declined by one-third in the past ten years and by four-fifths since 1980.

Update (May 2, 2013):  An animation showing the decline in sea ice volume.  And a White House meeting about the rapid changes in the arctic.