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It has nothing to do with ideology.  Where did you get that idea?  Green is what it is.  It is a real trend with a clear purpose.  Read the tags on the article about the inventor.  It is a who's who of the green movement.  There is a ton of green marketing out there.    I would guess that putting a streamline fairng on trucks is a viable way to save more fuel cost than the cost of the device.  For one thing, the device is MUCH larger in relation to a truck than one little faring on the first container of a 100 car freight train.  That would be like putting a thimble on the front of a highway truck.  I think the U.P. faring will save fuel which will help the planet.  Maybe some of the engineering people on this forum can tell us how many pints per mile, the fairing will save on a given train.  Actually my comment above is not much different than the newswire piece in the original post.  It sound skeptical of the practicality of the idea and says the objective is this:   "The Arrowedge represents Union Pacific's focus on pioneering technology for operational and environmentally sustainable gains that ultimately result in enhanced customer service and community stewardship,.."
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