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lborkowski | August 11, 2010When I visited Shanghai a few years ago, one of my favorite moments was riding the maglev train from the airport to a Metro station on the outskirts of the city. As I recall, its speed got up to around 250 mph - a counter in each car displayed the speed, and the numbers changed in a blur as the train accelerated out of the station. I thought about how wonderful it would be to have such a high-speed train between DC and New York or LA and San Francisco, but feared it couldn't happen in the US.
Flights and long drives are not only major sources of greenhouse gases, they're also growing sources…