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In this July 19, 2011 photo, rows of pressure ridges stack up, foreground, before tumbling over the ever-collapsing calving 6-kilometer- (4-mile-) wide front of Jakobshavn Glacier and into the Ilulissat ice fjord, background, in Greenland. (AP Photo/Brennan Linsley)

Greenland's ice: beauty and threat

Greenland's Inuit people have countless terms in their language to describe ice in all its varieties. This gallery of photographs by AP's Brennan Linsley likewise is something of a visual vocabulary for the striking and beautiful forms ice takes on and around the giant Arctic island.