One thing must be admitted about trains, they move goods cheaper by far than do trucks. Not knowing the figures on airplanes, let's leave them out. Trains is on my mind. Specifically the MagLev trains. They have them in China and Japan, France has the fast on rails train but off rail and for sheer top speed, Japan wins with the maglev. For one thing that we can discuss is the MagLev is 100 percent electric powered. An electric current can be generated a lot of ways. It can be from a windmill or a lot of them, but wind could do the job. We have other ways as well. i don't know which of all is best. So let's take a Maglev ride. A good video to see how it works.