Poll: Attitudes Shifting on Warming

A new Gallup poll shows Americans are less worried about climate change, and are less convinced of its impact on the environment.

The poll shows 48 percent feel the seriousness of global warming is generally exaggerated -- the highest percentage in the 13 years the question has been included in the poll. It's up from 41 percent last year and 31 percent in 1997.

Gallup speculates the shift may be due to the recent controversy over stolen e-mails from climate scientists and the increasingly partisan nature of the...

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