According to the NABU cruise ship ranking for 2019, the cruise ship industry is still operating on heavy fuels with only a small proportion of fleets becoming cleaner.

German environmental organization reports that the industry’s climate footprint remains largely unchanged as the ships do not use greener technologies such as exhaust technology on a larger scale.

This year’s study has covered 89 ships and featured technologies in the field of energy supply and propulsion systems for the first time listed as a separate category.

In the category of air pollutants, AIDA, German shipowner, comes first with its newest vessel AIDAnova. Costa Crociere, the Italian company, is on a par with its LNG-powered Costa Smeralda, the organization said in the study. The third place was awarded to three ships of shipping company Hapag-Lloyd.

NABU noted that Hurtigruten set new standards with their hybrid ship Roald Amundsen. Though they still employ diesel-electric engines, their energy efficiency gain reduces C02 emissions.

The cruise industry giants MSC and Royal Carribean take the last place at all times.

“A comprehensive reduction of air pollutants is technologically possible and also economically feasible for a mere fraction of the construction costs of a new ship,” –
said Malte Siegert, head of climate policy at NABU Hamburg.