As a result of environmental concerns, including air and water pollution caused by waste disposal in the sea and emissions released into the air, the cruise ship industry has utilized advanced technology to develop solutions. For instance, new waves of cleaner-running ships have been introduced. A notable example is the environmentally friendly dry cleaning system retrofitted by Carnival, which employs eco-friendly detergents as a green alternative to traditional dry cleaning methods (Horc, 2008).
Carnival has also launched the 'Carnival Spirit,' featuring a highly efficient diesel-electric propulsion system known as the 'Enviro-Engine.' This innovation is designed to nearly eliminate visible smokestack emissions. Additionally, further research in collaboration with Finnish engine-maker NSD may soon yield a diesel-electric engine that reduces unseen gases, such as carbon dioxide, a by-product of cruise ship combustion.
Efforts to mitigate airborne emissions include adopting alternative engine technology. General Electric’s gas-turbine system, adapted from jet engines like those powering Boeing 767s, is now used in Radiance class vessels for its efficiency.
With cruise liners resembling mini-cities, various career opportunities arise. Positions include the General Manager Hotel (also known as the Hotel Manager), responsible for overseeing operations in hotels, motels, resorts, or cruise ships, excluding line officers (Colbert, 2004). The Chief Engineer, also known as the Director of Engineering and Building Engineer, oversees mechanical, electrical, plumbing, and fire protection operations. Additionally, Deckhands (or Seamen) perform maintenance duties and operate equipment on ship decks, working on vessels ranging from river barges to ocean liners.