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There are 100,000 glaciers in Alaska (of varying sizes) and 95% are in retreat, melting back in our era of global warming. Explored Laughton Glacier above Skagway, Alaska. Glaciers carve drama and splendor into the landscapes. Both bulldozer and conveyor belt, the sticky ice picks up rocks that it uses chock-a-block to grind away at the mountains, creating new upland valleys and coastal fjords. Geology in motion!

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