When will the summer Arctic be nearly sea ice free

  title={When will the summer Arctic be nearly sea ice free},
  author={James E. Overland and Muyin Wang},
  journal={Geophysical Research Letters},
[1] The observed rapid loss of thick multiyear sea ice over the last 7 years and the September 2012 Arctic sea ice extent reduction of 49% relative to the 1979–2000 climatology are inconsistent with projections of a nearly sea ice-free summer Arctic from model estimates of 2070 and beyond made just a few years ago. Three recent approaches to predictions in the scientific literature are as follows: (1) extrapolation of sea ice volume data, (2) assuming several more rapid loss events such as 2007… Expand
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