The cost of cleaner fuels could be high enough to push some ship operators and bunker-supply companies over the financial edge.,

Analysts and suppliers have done the maths and the figures suggest shipping will require an unprecedented level of additional funding to pay for its fuel.

Jan Christensen, managing director of global bunker operations at bunker supplier Bomin, says: “If you look at the entire market shifting to gas oil, that amounts to around 200 million tonnes.