Northern Hemisphere Sea Ice Anomaly 1979-2011 (anomaly from 1979-2008 mean)

This graph of the Arctic sea ice anomaly from 1979-2011 is waaaay too wide to show here, so please have a look at the link: 

http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/sea.ice.anomaly.timeseries.jpg