[bleepblorp]

Ocean freight has far lower emissions per tonne/km than road, rail, or air transport[0].

[0] https://www.eea.europa.eu/data-and-maps/indicators/specific-...

[hombre_fatal]

They're probably thinking of

> just 15 of the biggest ships emit more of the noxious oxides of nitrogen and sulphur than all the world’s cars put together.