Energy requirements of different forms of freight transport
The vertical coordinate shows the energy consumed in kWh per net ton-km, (that is, the energy per t-km of freight moved, not including the weight of the vehicle).
[From David MacKay’s Sustainable Energy Without the Hot Air, p.104]
2 responses to “Energy requirements of different forms of freight transport”
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And in related news, we finally have an environmental justification for despising fat people:
http://www.guardian.co.uk/environment/2009/apr/20/obesity-climate-change
Did they need a new study to tell them that people in rich countries use more energy than those in poor countries?