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TAVIS SMILEY

Scientist Ken Caldeira

  • Aired: 04/18/2014
  • 10:32
  • Expires: 04/18/2016
  • Rating: NR
In recognition of Earth Day 2014, one of the leading U.S. scientists on global warming weighs in on the climate change debate.
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Scientist Ken Caldeira
Scientist Ken Caldeira
In recognition of Earth Day 2014, the atmospheric scientist weighs in on climate change.
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