A review of sea ice proxy information from polar ice cores

This article appears in the special issue "Sea Ice in the Paleoclimate System: the Challenge of Reconstructing Sea Ice from Proxies", which contains a set of papers addressing various sea ice proxies and their application to large scale sea ice reconstruction. It is a contribution by the Sea Ice Proxy (SIP) working group and is partly an outcome of a workshop held at GEOTOP in Montréal in March 2012.