Each year in mid-September, the annual sea ice pack in the Arctic Ocean reaches a minimum before temperatures turn cold and new ice begins to form. In 2007, Arctic sea ice reached a new record low.
Arctic sea ice reached a record low in September 2007, below the previous record set in 2005 and substantially below the long-term average.
Image of the Day Heat Water Snow and Ice Sea and Lake Ice
Snow and Ice Sea and Lake Ice