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              cn- Scientists in Alaska Working to Save Polar Bears

   [For decades, humans and global climate change have been threatening
   the existence of polar bears. Scientists in Alaska are working hard to
   save as many of them as possible. VOA's George Putic reports
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   [1]http://www.voanews.com/media/video/1926375.html

References

   1. http://www.voanews.com/media/video/1926375.html