Industry body Cruise Lines International Association (CLIA) added that companies had “invested significantly over the last decade to develop new technologies to help reduce air emissions”. The recent launch of ' Harmony of the Seas ' , the world 's largest cruise ship , created a serious problem with the air pollution caused by these large vessels . It is a problem that increases each year in step with the growing popularity of cruising . The Brussels - based Transport and Environment group has stated : “ Air pollution from international shipping accounts for around 50,000 premature deaths per year in Europe alone ” . It is also claimed that pollution at Southampton 's port is linked to asthma and chest diseases . Another body , Cruise Lines ' Association stated that companies had “ invested significantly over the last decade to develop new technologies to help reduce air emissions ” .
The recent launch of ' Harmony of the Seas ' , the world 's largest cruise ship , created a serious problem with the air pollution caused by these large vessels . It is a problem that increases each year in step with the growing popularity of cruising . The Brussels - based Transport and Environment group has stated : “ Air pollution from international shipping accounts for around 50,000 premature deaths per year in Europe alone ” . It is also claimed that pollution at Southampton 's port is linked to asthma and chest diseases . Another body , Cruise Lines ' Association stated that companies had “ invested significantly over the last decade to develop new technologies to help reduce air emissions ” .