The absolute majority of in-country travels in the two largest countries in the world (China, India) are by railway, so I guess we westerners can use such transportation methods as well .)
@daw Certain boat types are of course troublesome for much sea life, but I'm still guessing the per-capita energy consumption is lower. Subsonic subwater noise is the another issue.
@daw If you travel, make your travel count and make the most of it as an life-altering experience; meet locals, take in the culture and enjoy your stay instead of downing cheap beer. One can also do some nice travel inside the country border and most people seem to forget the beauty of nature next door. I captured this time lapse a week ago -> https://social.umeahackerspace.se/attachment/119120