Old 04-19-06, 05:58 AM
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>>> comparison of mpg output of humans vs the average car when measured in calories, the weight of pollutants in exhaust expelled in a mile

Relative efficiency of humans versus autos? Even if you were to get these numbers, it seems like a meaningless relationship given the realities of how we use vehicles. Walking to the local coffee shop three blocks away is one thing and IMHO something the denizens of this forum would do. The more common reality is the 140 mile round trip commute to work or the 10 mile round trip to the grocery store. Humans don't replace cars; cars extend humans [the legion negative sequalae of the auto notwithstanding].

Here's a speech that [were I] a professor I'd like to hear. . .The Impact of the End of Cheap Energy