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Two nurse sharks hover over a baited cage
Lesson Plan

Where Have All the Glaciers Gone?

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Every year as the sun disappears for the winter, the surface waters around Antarctica freeze into a slab of ice 10-feet thick, which effectively doubles the size of the continent.
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Antarctic Pack Ice

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A walrus sits on top of ice.
Article

The Cultural Icescapes of the Arctic

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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
Overview

Sea Level Rise

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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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The Greenland glacier Jakobshavn Isbrae is massive, at around 40 miles long and more than a mile thick.
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Up Close and Personal With the Fastest Glacier in the World

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Looking through this iceberg's reflection in the Antarctic water, you can see the iceberg below the surface—some 90% of its total volume.
Overview

The Arctic and The Antarctic

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An iceberg calves from Antarctica's Pine Island Glacier
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Pine Island Glacier

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A team of scientists explore the Arctic ocean.
Slideshow

Under Arctic Ice

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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
Photo

Ice Melt in Iceland

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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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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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