Torstein Hagen's Viking Cruises is planning to build the world’s first emission-free cruiseship.

The 40,000-gt ship, with a capacity for 900 passengers, is to be powered by hydrogen.

Brokers tell TradeWinds they believe it will take up to seven years to complete the vessel as the project will involve new technology.

Hydrogen has yet not been used as a fuel for ships because of the challenges of keeping the gas liquid at exactly minus 253 degrees.