Government promises to cut carbon ­emissions to tackle the climate crisis are coming thick and fast.

Shipping can be in no doubt that the time for prevarication is over and concrete steps must be taken to “go green” — or face financial and reputational ­consequences.

The world of carbon credits and offsetting may offer short-term relief, but with rising concerns about the efficacy of that model, new ship fuels must be the ­ultimate answer.