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CHICAGO TONIGHT

Ask Geoffrey: Chicago's Crusade Against Air Pollution

Premiere Date: January 06, 2016
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CHICAGO TONIGHT

Ask Geoffrey: Chicago's Crusade Against Air Pollution

History expert Geoffrey Baer explains how Chicago cleaned up its once-smoggy act.
  • Premiere Date: Jan 06th, 2016
  • Rating: NR
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Ask Geoffrey: Chicago's Crusade Against Air Pollution

History expert Geoffrey Baer explains how Chicago cleaned up its once-smoggy act. (9:02)
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