"usgs-openfilereport-2010-1176" . "Arctic Sea Ice Decline: Projected Changes in Timing and Extent of Sea Ice in the Bering and Chukchi Seas: U.S. Geological Survey Open-File Report 2010-1176"^^ . "2010"^^ . "http://pubs.usgs.gov/of/2010/1176"^^ . "report" . . . . . . . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid2 . _:genid2 . _:genid2 . _:genid2 .