Image: Permafrost - ice wedge
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Permafrost_-_ice_wedge.jpg (349 × 241 pixels, file size: 33 KB, MIME type: image/jpeg)
Description: The ice wedge in permafrost.
Title: Permafrost - ice wedge
Credit: http://science.nasa.gov/newhome/headlines/ast27jul99_1.htm
Author: NASA employee?
Permission: PD-USGov-NASA
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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