Saturday, November 12, 2005

'Factor 4' Solution: from air to rail travel

CO2 emissions per passenger.km for air travel are 186 g to  travel from Hamburg to Munich (source - p41). Making the journey by rail reduces this to 43 g CO2 per passenger.km. Replacing air travel by high speed rail over medium distances reduces CO2 emissions by a factor 4. Energy consumption reduces by a factor 3, from 7.8 to 2.5 l/passenger.km.

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