The International Ice Charting Working Group’s 12th meeting was hosted by the British Antarctic survey October 17-21 in Cambridge, England. The NOAA team at NSIDC works with this group to advance the use of operational ice charts by researchers and to assist in archiving these valuable records. Florence Fetterer gave a talk on work led by John Walsh of the University of Alaska, Fairbanks, to extend the observational record in sea ice extent products back to 1850. Having issued a statement titled National Ice Services Caution that “Open” Does Not Mean Ice-Free, the IICWG warned against misinterpreting “open” or even “ice free” when referring to the Northwest Passage and the Northern Sea Route. For more information about the IICWG, see the IICWG Web site.