I disagree that people should be dismissive of the environmental impact of shipping in general. It alone contributes 3% of global greenhouse gasses, not to ment

I disagree that people should be dismissive of the environmental impact of shipping in general. It alone contributes 3% of global greenhouse gasses, not to mention all the water pollution. I also disagree with your comparing an average per-cubic meter rate of a cargo shipment to a truck carrying a single 1m^3 steel cube. It is so far from being logical I can’t really respond at all. I also disagree with your complete dismissal of the heightened impact of the sulfur used in high seas shipping.