Taking the pulse of a shrinking glacier

Nature: The Exploradores Glacier in southern Chile is riven with cracks that form vertical cliffs of luminescent blue and indigo ice. A constant sound of running water rises from the rivers snaking beneath the 20-kilometre-long frozen mass that sweeps down from Mount San Valentín. The scene is stunning. And it is also, slowly but surely, disappearing. To understand why this is happening, scientists must measure the various processes that affect glaciers -- not an easy task in this frozen wilderness. Installing......

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