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Warnings from the ice [videorecording] / written, produced and directed by Robert Gardner ; a production by the WGBH/Boston Science Unit in association with Sveriges Television.
South Burlington, VT : WGBH Boston Video, c1998.
1 videocassette (60 min.) : sd., col. ; 1/2 in.
Experts probe the Antarctic ice for clues to the mystery of rapid climate change.