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Slippin' Slide: Glaciers surge after ice shelf collapses

Five of the six large glaciers that once fed into Antarctica's Larsen A ice shelf have sped up significantly since that floating ice mass collapsed and drifted away in January 1995, scientists report.

Analyses of satellite images and aerial surveys reveal the glaciers' acceleration, says glaciologist Hernn De Angelis of the Argentine Antarctic Institute in Buenos Aires. For instance, photos from orbit show that between February 2000 and September 2001, portions of the Sjögren Glacier moved at an average speed of about

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