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        6-12

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        Earth's Cryosphere: The Arctic

        This video segment adapted from NASA uses satellite imagery to provide an overview of the cryosphere in the northern hemisphere, including the Arctic. Investigate the cryosphere's role in North America, the extent of permafrost in the northern hemisphere, and how the polar regions play a role in regulating global climate. Finally, observe changes in Arctic ice cover, such as the decrease in summer sea ice over the past few decades and changes in the flow rate of Greenland's Jakobshavn Glacier.

        This media asset was adapted from the NASA/Goddard Space Flight Center Scientific Visualization Studio.

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