Which way to turn in a world calling urgently for shipowners to decarbonise but where there are no clear answers on what targets need to be hit, what future fuels will emerge, and which vessels can be retrofitted with what technologies is a dilemma facing most operators.

Answers — at least along the lines of what may be the initial strategies that look most cost-effective — are about to become available with the launch of a service to help small and medium-size shipowners develop viable decarbonisation strategies.