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New Smokestack Rules

The EPA is expected to release new rules aimed at cleaning up sulfur dioxide pollution. (Photo courtesy of NASA)
This week, the U-S Environmental Protection Agency will release much-anticipated new rules limiting sulfur dioxide in the air. As Tanya Ott reports, it's almost certain to result in years of legal battles:
More from the EPA on sulfur dioxide
Sulfur dioxide pollution has been declining
Producer: Tanya Ott
Release Date: May 31, 2010
Running Time: :51

