On August 27th 2012 the US National Snow and Ice Data Centre (NSIDC) announced that “Arctic sea ice appears to have broken the 2007 record daily extent and is now the lowest in the satellite era.
Sea ice is frozen sea water that waxes and wanes in response to the cooling and warming of the Arctic throughout the year. The ice pack reaches its greatest extent at the end of the winter, during March, and its lowest point at the end of the summer, usually in mid-September. This point is known as the sea ice minimum.
Arctic Sea Ice Minimum