Here I am in Montana near Glacier National Park, riding on one of the more fuel-efficient modes of transportation: the train. While gliding along and looking at the spectacular scenery, I couldn't help but run some numbers through my head about the efficiency of this mode of transit. This train is carrying 340 +/- 20 people from Chicago to Seattle, Portland, and points between. So due to my

So I'm in China.  Bicycles are everywhere here, still a lot of people use them for transportation.  Last night I saw a guy riding his bike with 3 mattresses on his back!  It was an amazing balancing act, and a testament to the determinedness of the people. But car use is on the rise.  Here there are many car ads, and cars are seen as a wealth and status symbol - a sign of the good life. Every