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Posted: Thursday, 09 July 2009 1:27PM

UM Research: Higher Gas Prices Help Reduce Emissions



Last week, University of Michigan researchers released a study that showed that since late 2007, average fuel economy of new vehicles purchased has increased by more than 5 percent -- thanks in large part to unemployment and gas prices.

Now, in a companion report, Michael Sivak and Brandon Schoettle of the UM Transportation Research Institute suggest that as a result of improved fuel economy (from 20.2 mpg in October 2007 to 21.3 in April 2009) and a decrease in  distance driven by U.S. motorists (a 3 percent drop in April 2009 compared to October 2007), carbon dioxide emissions per driver from purchased new vehicles have declined.

Emissions were lower in each month from October 2007 to April 2009. The greatest reduction -- 12 percent -- was achieved in July 2008. The reduction in April 2009 was 8 percent.

For a copy of the report, visit http://deepblue.lib.umich.edu/bitstream/2027.42/63100/1/102303.pdf

A full copy of last week's study is at www.umtri.umich.edu/news.php?id=2348.


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