The per-ton CO2 emissions of those boats is still much, much lower than by truck or rail. Large ships are insanely efficient at moving cargo; that's why it's so economical to transport stuff across the planet.
Now factor in the manufacturing CO2 in a country with lax pollution regulations vs in the US...
Isn't the question, a/ travels across the globe + rails and truck vs b/ maybe rails + truck ?
Not arguing that the carbon tax is legit. It hasn't been proven yet that it isn't just a way to collect money while pretending to do something about the environment.
Well but maybe Chad in Nebraska would appreciate buying a Halloween decoration for $0.50 on wish!?!
We should maybe just reconsider in general what kind of thing is economically viable