It turns out that cars may be more fuel efficient than trains (link via Marginal Revolution).

Challenging assumptions about railways’ green superiority, the study finds that the weight and fuel requirements of trains have increased to the point where rail could become the least energy-efficient form of transport.



Engineers at Lancaster University said trains had failed to keep up with the motor and aviation industries in reducing fuel needs.



They calculate that expresses between London and Edinburgh consume slightly more fuel per seat (the equivalent of 11.5 litres) than a modern diesel-powered car making the same journey.



The car’s superiority rises dramatically when compared with trains travelling at up to 215mph.

Here’s the money quote:

“I know this will generate howls of protest, but at present a family of four going by car is about as environmentally friendly as you can get.”