The cruise industry has pledged a 40% per cent reduction in carbon emissions by 2030.

It represents a “strong first step” towards the International Maritime Organisation (IMO)’s vision of a carbon-free shipping industry by the end of the century, says Arnold Donald, global chairman of the Cruise Lines International Association (CLIA) and chief executive of industry giant Carnival Corporation.

CLIA says the 40% cut stems from a “collaborative process designed to build concensus among cruise line leadership.”