Not by Fire but by Ice

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Public transport may not be as green as you think

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7 Jun 09 - "Taking public transport may not be as green as you automatically think, says a new US study.

(Excerpts) "The paper points out that the "tailpipe" quotient does not include emissions that come from building transport infrastructure -- railways, airport terminals, roads and so on -- nor the emissions that come from maintaining this infrastructure over its operational lifetime.

"These often-unacknowledged factors add substantially to the global-warming burden.

"In fact, they add 63 percent to the "tailpipe" emissions of a car, 31 percent to those of a plane, and 55 percent to those of a train.

"And another big variable that may be overlooked in green thinking is seat occupancy.

"A saloon (sedan) car or even an 4x4 that is fully occupied may be responsible for less greenhouse gas per kilometer travelled per person than a suburban train that is a quarter full, the researchers calculate.

http://www.breitbart.com/article.php?id=CNG.243153c6a091a3b942a75077729e8c92.c51&show_article=1
Thanks to Benjamin Napier for this link

  

 

 

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