[snufkin80]

Hi there

I'm doing some research about the carbon-dioxide emissions of long distance train travel. It's quite easy to find estimations of the emissions from rail travel in the UK, but I'm interested in the carbon dioxide emissions of trains in lots of different countries.

Does anyone know how efficient the transsiberian trains are compared to the average UK train (which ATOC regards creates 54 gms of CO2 per passenger kilometer)

And is there a standard length, and by extension, a standard range of weights for passenger cars across the world, or do passenger cars differ greatly?

Many thanks for your help