What about when their 'full life cycle' isn't taken into account?
Anyway, this headline promised fun, delivered little.
news.bbc.co.uk/1/hi/technology/8089102.stm
(rnuk http://flickr.com/rnuk, Mon 8 Jun 2009, 14:49, archived)

well why would you want to know without full life cycles?
the full life cycle is the important bit.

which is also why toyota prius's are actually piles of shite, if you want a green car get a good diesel.
( Slippery Mick ‏, Mon 8 Jun 2009, 14:51, archived)

I might want to know so that I can skew the results in favour of my own green agenda.

(rnuk http://flickr.com/rnuk, Mon 8 Jun 2009, 14:54, archived)

it's relevant in the US where they would have to build new infrastructure,
not so much over here where we already have train lines and stations.
( Moon Girl Technologies horrendous beanbag, Mon 8 Jun 2009, 14:58, archived)