In this January 27, 2015 photo, an iceberg floats in the Bahia Almirantazgo near Livingston Island, part of the South Shetland Island archipelago in Antarctica. Antarctica conjures up images of quiet mountains and white plateaus, but the coldest, driest and remotest continent is far from dormant. The majority of it is covered by ice, and that ice is constantly moving. (Photo by Natacha Pisarenko/AP Photo)
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