Considering the large coverage of the news of the large melt extent over Greenland reported by NASA, I thought it would be helpful to report some of the previously detected melt extent 'anomalies'.
The melt extent observed during July 2012 is unprecedented (during the satellite era, 1979 - to date) but I can recall at least two cases (one in Greenland and one in Antarctica) when melt extent was out of the ordinary.