If shipowners are going to be able to operate zero-emissions vessels by 2030 that have a commercial life of at least 20 years, shipyards will quickly need to start building them.

But getting designs from the drawing board and onto the water is no easy task.

Shipyards have begun to develop designs for vessels that will be powered by low-carbon or zero-carbon fuels, but major Asian shipbuilders say the processes needed to create ships that can meet the International Maritime Organization emission goals will require a multi-faceted effort.