Instapundit led us to this Telegraph piece that summarizes new research on the efficiency of trains as a form of mass transit. Turns out their nowhere near as friendly to the environment as we think.

While this is for the UK, the US will probably be even worse, as our ancient regulations require far heavier trains and cars, especially for passenger service. However, considering Amtrak only stays in business with massive government subsidies, don't expect any changes soon.

I expect enviroweenies roaring disapproval at a scientific attack on one of their pet beliefs within a day at most.