You can only play with what you know. Once those vessels are built, bought, and put in operation there is no going back for many decades, and cutting a ship open to change propulsion is nothing you want to engage in. Like, ever. The only truly clean fuel that is economically and technically mature for use in any vessel is LNG. See it this way: if carbon continues to be the hyped up non-issue made into an issue you can still use biomethane and don’t have to change your gear. Tell me what’s better than that.
Saving planet while burning fuel with superior mileage, doesn't that sound too good to be true? Ara Barsamian, Eliseo Curcio, and Daniel Son from Refinery Automation Institute, LLC discuss.