Photo: #Experts have announced that current levels of the greenhouse gases carbon dioxide and methane in the atmosphere are higher now than at any time in the past 650,000 years.

The cost of global warming

Broadcast: Midmorning, 10/06/2006, 10:06 a.m.

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.

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with Bob Collins