Sequence of four maps showing diminishing area of arctic ice coverage
Description:
The science and politics of climate change are among the topics covered in this class. This image shows the diminishing extent of Arctic sea ice coverage in September: clockwise from top left, 1979, 1989, 1999, and 2007. White shows ice greater than 5 years old, while light blue depicts thinner ice less than 5 years old. (Figure courtesy of U.S. Department of Interior.)
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Sequence of four maps showing diminishing area of arctic ice coverage
Alt text:
Sequence of four maps showing diminishing area of arctic ice coverage.
Caption:
The science and politics of climate change are among the topics covered in this class. This image shows the diminishing extent of Arctic sea ice coverage in September: clockwise from top left, 1979, 1989, 1999, and 2007. White shows ice greater than 5 years old, while light blue depicts thinner ice less than 5 years old. (Image courtesy of U.S. Department of Interior.)
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2007
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