The cost of global warming
Those opposed to regulating greenhouse gases say the costs to industry would be too high. Midmorning's guests include a scientist from DuPont who says the company has saved $3 billion over 15 years by cutting climate-changing gases.
Guests
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Bill Chameides: Chief scientist at Environmental Defense. Prior to becoming an environmental activist, he was a professor of atmospheric sciences for 30 years.
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Mark McFarland: Environmental Fellow at DuPont.
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