To wit, a 25 year movie/video of the North Polar Ice Sheet.
Image Yahoo Video
Look familiar? Don't get used to it...
From NASA's Looking at Earth page.
"This animation, derived from the Defense Meteorological Satellite Program (DMSP) Special Sensor Microwave Imager (SSMI), shows the annual minimum sea ice extent and concentration for 25 years, from 1979 to 2004."
Dam those 'El Nino type water currents and air flows north....'
By 2020, scientists calculate the ice cap will disappear in summer.
Key Tag at FilterBlogs, Climate