One of the scientists says the past six years have shown the lowest Arctic sea ice cover ever measured.

VOA: special.2009.05.05

Every summer an extra area of ice six times the size of California has been disappearing.

ECONOMIST: An imminent answer to an Arctic riddle

The flights are part of "Operation Ice Bridge, " a six-year plan described as the largest ever airborne survey of ice at Earth's poles.

CNN: NASA flights will study Antarctic ice changes

Staal spent more than 17 minutes on the ice in the Rangers' 4-3 Game 3 victory, helping neutralize Capitals star Alex Ovechkin. (The Rangers trail the series, 2-1, going into Wednesday's Game 4 at home.) More, he afforded coach John Tortorella the freedom to spread out ice time among his six regular defensemen, deviating from a pattern Tortorella had fallen into during last year's playoffs.

WSJ: A Reason for Ranger Hope