Just curious, where did you get that graph? Thanks.
http://www.ijis.iarc.uaf.edu/seaice/extent/Sea_Ice_Extent_L.png
You can always find the location of a image from your browser. In Firefox, right click on the image and select “Copy image location” Then paste it down in notepad, or “Your reply” window. ;-)
Cut out the left side of an image link and you will usually get to the underlying web site.
http://www.ijis.iarc.uaf.edu/cgi-bin/seaice-monitor.cgi