This is awesome because everyone needs to read about how cargo and cruise ships burn disgusting, super nasty "bunker fuel" and make the world even more toxic.
New rules more stringent rules have been in effect since 2020. Now the limit is 0.5% sulfur globally, with harder restrictions in many places around North America and Europe.
https://en.wikipedia.org/wiki/Fuel_oil#Health_impacts
https://www.cruiselawnews.com/2010/05/articles/pollution/rea...