Think twice about 'green' transport, say scientists

http://www.breitbart.com/article.php?id=CNG.243153c6a091a3b942a75077729e8c92.c51&show_article=1

"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."

It's all about who is calculating the numbers.