Tom Strang, Carnival Corporation’s senior vice president maritime affairs, says the cruise giant’s commitment to LNG fuelling “future proofs” it in tackling key pollutants, including sulphur dioxide and particulate emissions.

He also describes as technology that works exhaust gas cleaning systems which Carnival has installed across much of its fleet.

Carnival has been in the vanguard of LNG fuelling with seven such newbuildings on order, the first of which will be delivered by Meyer Werft’s Papenburg yard in about one year.