NASA Takes You On A New Tour Of The Cryosphere

Back in 2002, NASA created a film using satellite data that took viewers on a tour of Earth's frozen regions. This year, NASA visualizers are taking viewers on a return trip to see how things have changed over the years.

http://www.spacemart.com/reports/NASA_Takes_You_On_A_New_Tour_Of_The_Cryosphere_999.html