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

Ice Melt at the Poles

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Two nurse sharks hover over a baited cage
Lesson Plan

Global Climate Change and Sea Level Rise

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A small Adélie penguin hops on a piece of ice.
Photo

Adélie Penguin Jumping Out of the Water

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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.
Photo

Antarctic Pack Ice

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Two nurse sharks hover over a baited cage
Lesson Plan

Biomes: Wild 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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Polar bears are threatened by a lack of sea ice.
Article

Climate Change at the Poles

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A walrus sits on top of ice.
Article

The Cultural Icescapes of the Arctic

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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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Two nurse sharks hover over a baited cage
Lesson Plan

Where Have All the Glaciers Gone?

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Snow petrels hunt in Antarctic sea ice, feeding on krill and fish.
Photo

Snow Petrel

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