What's Really Happening to the Artic Ice Cap

Whatever it is, it isn't global warming (from Special Report):

Perfectly Natural

Many global warming activists point to changes in the arctic icecap as proof of the dangerous effects of man-made global warming. Now a report from NASA's Jet Propulsion Laboratory says those changes are in fact the result of natural ocean circulation patterns. A team of scientists used satellite and deep-sea pressure gauge data to monitor ocean patterns.

Says team leader James Morison of the University of Washington's Polar Science Center — "Our study confirms many changes seen in upper Arctic Ocean circulation in the 1990s were mostly decadal in nature, rather than trends caused by global warming."

Earth's weather patterns tend to be cyclical, and a warming pattern for a period of time does not automatically equal a warming trend that will continue.