For even half full inter-city trains I don't think there's any doubt about which is more energy efficient. Trains will tend to win by about an order of magnitu

For even half full inter-city trains I don't think there's any doubt about which is more energy efficient. Trains will tend to win by about an order of magnitude. Planes aren't any worse than cars containing a single person, though. https://www.withouthotair.com/c20/page_128.shtml https://www.withouthotair.com/c20/page_128.shtml