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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
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Ice Melt in Iceland

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The Greenland glacier Jakobshavn Isbrae is massive, at around 40 miles long and more than a mile thick.
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Jakobshavn Glacier

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Weddell seals grind their teeth on holes in the ice to keep them open to their comings and goings between ocean and air.
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Weddell Seal in Antarctic Water

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Antarctica is almost entirely covered by ice sheets up to two miles (3 km) thick, which contain roughly 70% of the world’s freshwater.
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Ross Sea Ice Shelf

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A narwhal breaches the surface, its tusk pointed to the sky
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Why a Tusk? The real-life unicorns of the sea and the tusks that make them famous

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A summertime channel carries melted ice to the sea. Antarctica and Greenland lose around 350 billion tons of ice each year from such melting.
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Ice Melt at the Poles

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data of sea ice coverage in the Arctic
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Arctic Sea Ice: A New Low?

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In 2011, storms and lack of ice-cover due to a warmer winter climate resulted in hundreds of seal pups being washed up on the shore of Prince Edward Island. Like many, this young seal faced an uncertain future. See more Nature's Best Photos.
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Harp Seal, Prince Edward Island National Park, Canada

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Human activity is increasing in the Arctic marine environment due to climate change. To help the most vulnerable areas, the Global Marine Program of IUCN, along with partners, is convening a series of workshops aimed at enhancing ecosystem-based management and identifying biologically or ecologically important or vulnerable habitats. Burgerbukta, a bay in Svalbard, Norway, is being managed for ecosystem protection.
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The Sant Ocean Hall: Life at the Poles Exhibit

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The Greenland glacier Jakobshavn Isbrae is massive, at around 40 miles long and more than a mile thick.
Article

Up Close and Personal With the Fastest Glacier in the World

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In 2011, storms and lack of ice-cover due to a warmer winter climate resulted in hundreds of seal pups being washed up on the shore of Prince Edward Island. Like many, this young seal faced an uncertain future. See more Nature's Best Photos.
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Ice-Loving Seals and the Loss of Sea Ice

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Polar bears are threatened by a lack of sea ice.
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Climate Change at the Poles

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