Secrets Beneath the Ice
Is Antarctica headed for a catastrophic meltdown? New evidence of ancient climate change may hold clues.
Expired: 12/15/15Video has closed captioning.
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Funding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Original funding provided by Exxon Mobil, Pacific Life, the David H. Koch Fund for Science, the National Science Foundation, the Earth Science program at NASA, HHMI, the Corporation for Public Broadcasting, and PBS Stations.