Summer Arctic Ice to Be Gone by 2013

The Arctic ice cap shrank so much this summer that several nations began staking claim to the Northwest Passage. Now comes a dramatic new forecast.  By the year 2013, new supercomputer studies show, ice will be gone from the Arctic Ocean all summer long. Wieslaw Maslowski, a research professor of oceanography at the Naval Postgraduate School in Monterey, California, who headed the team that produced the new data, joins is from the American Geophysical Union's annual fall meeting in San Francisco.