Figure : decline-in-arctic-sea-ice-extent

Decline in Arctic Sea Ice Extent

Figure 2.28

National Aeronautics and Space Administration
Walt Meier

This figure appears in chapter 2 of the Climate Change Impacts in the United States: The Third National Climate Assessment report.

Summer Arctic sea ice has declined dramatically since satellites began measuring it in 1979. The extent of sea ice in September 2012, shown in white in the top figure, was more than 40% below the median for 1979-2000. The graph on the bottom left shows annual variations in September Arctic sea ice extent for 1979-2013. It is also notable that the ice has become much thinner in recent years, so its total volume (bottom right) has declined even more rapidly than the extent.2ecb64ff-f4e0-4acd-b049-e5d04f44c57a (Figure and data from National Snow and Ice Data Center).

When citing this figure, please reference National Snow and Ice Data Center.

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This figure was created on November 13, 2013.

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