| 27 August 2010

Arctic sea ice extent image for August 24, 2010, as compiled by The University of Illinois Cryosphere For the fourth year in a row, and for the fourth time in recorded history, the Northwest passage is completely open. For only the third time, both the Northwest and Northeast passage (north of Russia) are open. If you had a fast enough boat you could race right around the North Pole and Greenland. ... Read the full story on TreeHugger