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I was wondering, has anyone ever proposed or built a train or light rail to run on clean natural gas like many city buses do?
Probably the closest thing would be a DMU, which often run in single or double unites (even if it is a contradiction of terms) or a "railbus". It's interesting to know some research and application has been done though.A swedish Y1 (italian diesel train, not sure what they're called in english - in swedish they are literally called "engine wagon", ie basically a passenger wagon with it's own engine and "cockpit") has been converted to run on biogas.
There is a picture of it here:
http://www.jarnvag.net/bild/vagnguide/extY...inehamn2005.jpg
And some more info on the Y1 (in swedish, but the basic data should be understandable)
http://www.jarnvag.net/vagnguide/Y1.asp
This is exactly what I think also. The US should electrify more track. It is not cheap, but it is doable, just look at other countries!If we wnat to get serious about weaning ourselves from fossil fuels, then it has got to be hydro power, geothermal, nuclear, and string wires over the tracks. Everything else is primarily a way to look like we are doing something when we really are not.
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