Discusses how "National Geographic explorer" has chronicled changes across the world in the past twenty-five years. ARTIST : ARTIST NOT PROVIDED BRAND : GAIAM, INC. GENRE : TELEVISION: NATIONAL GEOGRAPHI MANUFACTURER : NATIONAL GEOGRAPHIC/GAIAM PRODUCT TYPE : DVD PRODUCT TYPE : DVD RATING : NR RATING : NR RELEASE DATE : 22-JUN-2010 RETURNS ACCEPTED? : YES RUNTIME : 90
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