Sean King

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Knoxville, Tennessee, United States

Saturday, March 7, 2009

On Coal, Carbon and Life Expectancies

WUWT: As the above figure shows, US life expectancy at birth increased by 30.5 years, from 47.3 years to 77.8 years, between 1900 and 2005, while coal usage more than tripled. Carbon dioxide emissions in 2005 were nearly nine times the 1900 levels. And, of course, the climate has also gotten warmer (not shown). To appreciate the magnitude of this improvement in life expectancy, consider that the approximate life expectancy in pre-industrial societies varied from 25-35 years.

While the increase in life expectancy is not directly due to greater coal use or CO2 emissions, much of it was enabled in one way or another by the prosperity fueled in large part by coal and fossil fuel consumption....

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