:Indeed, sea ice extend did increase from 2012 to 2013. Just as it did from 2007 to 2009, only to crash down again to a record low in 2012, from which it has recovered somewhat in 2013. Single years are irrelevant in looking at the long-term trend, and people who claim that a single year trend in one climate indicator somehow prove or disprove a trend don't know what they are doing, or, more likely, they lie. But feel free to update the article - our own arctic sea ice decline is reasonably up-to-date. In particular, it has a current graph from NSIDC.