Guardian: Any day now Arctic sea-ice is going to hit its lowest extent for the year, and once again its set to be one of the lowest years on record (the four lowest years have all occurred since 2007). Already a number of ships have glided safely through the fabled northwest passage, unencumbered by sea-ice.
Typically the Arctic sea-ice minimum occurs in mid to late September and the signs so far suggest a lean year. Back in August the sea-ice covered 5.61m square kilometres the fourth lowest August...