Quote:
Originally Posted by Laurentiu
There's probably more human waste dumped from trains than ships if that's the kind of waste you refer to..the brown/yellow kind
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I don't believe that is the case "in general" anymore... At least in the US, I don't believe Amtrak does the "direct dumping" anymore, and I think newer trains in the "more developed" parts of the world also have retention tanks.
However, I can't speak for every location / country...