Reconstructed changes in Arctic sea ice over the past 1,450 years
A high-resolution reconstruction of past sea-ice cover changes in the Arctic shows that the recent sea-ice loss is unprecedented in the past 1,450 years. This supports the suggestion that the recent decrease in summer Arctic sea ice is consistent with forcings from anthropogenic warming. More in http://www.nature.com/nature/journal/v479/n7374/full/nature10581.html?WT.ec_id=NATURE-20111124