You are off by an order of magnitude. Global oceanic shipping of all kinds is <3% of anthropogenic CO2[1]. Closer to 1.5-2% if you include land use changes.

You are off by an order of magnitude. Global oceanic shipping of all kinds is <3% of anthropogenic CO2[1]. Closer to 1.5-2% if you include land use changes. You are correct about cruise ships, although it's more like 2-3x. [1]: https://phys.org/news/2018-12-cargo-ships-emitting-boatloads-carbon.html https://phys.org/news/2018-12-cargo-ships-emitting-boatloads...