[ausev] interesting article, but consider the source....

[Mark Farver]

nick blackhall wrote:
> http://clubs.ccsu.edu/recorder/editorial/editorial_item.asp?NewsID=188
>  
>  
> Ive seen this article other places but heres a link to one of them. 
> Apparently it takes more energy to make a prius than a hummer. 

The study is trying to compare lifecycle costs, mostly how much energy 
goes into the manufacturer of the vehicle, vs lifespan.  Essentially the 
study takes energy input during manufacturing, and divides that by the 
number of the mile the vehicle is expected to be driven before being 
discarded.

In this case the study assumed the lifespan of a Prius to be 103,000 
mile before it is junked, the Hummer, 300,000 miles.  Repeated questions 
from the eco-press asking where or what method they used to derive those 
numbers have been met with no response.

Mark

First rule of statistics, check the assumptions.  Second rule, you can 
do a lot more by changing the denominator.

Mark