The effort by the Miami cruiseship giant will represent a $400m investment for the owner of 109 cruiseships and newbuilings across 10 lines.

The exhaust gas cleaning technology will benefit both the environment and the New York-listed company, Donald said during a conference call with reporters.

"Investing in these installations will enable the Carnival Corporation to meet North American and global regulations on sulphur limits, while mitigating escalating fuel costs and helping us continue to meet our environmental and sustainability goals," he said.