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December 15, 2010
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
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Greenhouse gas mitigation can reduce the loss of Arctic sea-ice--and polar bears.
Greenhouse gas mitigation can reduce the loss of Arctic sea-ice--and polar bears.
Credit: NOAA
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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Related story: Polar Bears: On Thin Ice? Extinction Can Be Averted, Scientists Say