Sean King

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Knoxville, Tennessee, United States

Thursday, April 16, 2009

You Mean Our Air is Getting Cleaner?!

The project tracked the change of air quality in 51 American cities since the 1980s.

During that time general life expectancy increased by more than two and half years, much due to improved lifestyles, diet and healthcare.

But the researchers calculated more than 15% of that extra time was due to cleaner air.


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