Spotlight: Satellite Observations Of Greenhouse Gas Prove Loss Of Arctic's Perennial Ice Pack 

Santa Claus is getting nervous: Judging from satellite images taken last month, the Arctic's perennial sea ice pack has encountered gaping openings of territory reaching all the way to the North Pole. Observing data from Envisat's Advanced Synthetic Aperture Radar (ASAR) instrument and the AMSR-E instrument...

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