A study has predicted that ‘Cruisezilla’ ships could carry up to 10,500 passengers by 2050.
- Currently, cruise ships have doubled in size compared to those sailing in 2000.
- Royal Caribbean’s Icon of the Seas exemplifies this trend, showcasing significant growth in vessel capacity.
- The environmental impact of these large ships includes increased greenhouse gas emissions.
- There is growing pressure for the cruise industry to adopt greener technologies and reduce their carbon footprint.
The launch of ‘Cruisezilla’ ships capable of carrying a staggering 10,500 passengers by 2050 was forecasted in a recent study by Transport & Environment (T&E), a green travel advocacy group. This revelation highlights a significant shift in the size and capacity of cruise vessels, which have already doubled since the year 2000. The Royal Caribbean International’s Icon of the Seas, with a capacity of 7,600 passengers and weighing in at nearly 250,000 gross tonnes, represents the current pinnacle of these advancements. However, predictions suggest future ships could reach a mammoth 345,000 gross tonnes within the next quarter-century.
Since 1970, the number of cruise ships has exploded from a mere 21 to a considerable 515 today. This growth underlines the transition of cruise vacations from luxury experiences to mainstream holiday options, with 36 million people expected to embark on cruise voyages in 2024 alone. Despite the attractive allure of these ‘floating cities’, there is mounting concern over the ecological footprint they leave behind. T&E has voiced concerns that, between 2019 and 2022, CO2 and methane emissions from European cruise ships surged by 17% and 500% respectively, exacerbated further by the COVID-19 pandemic.
The increasing scale of cruise holidays and ship sizes is not without its significant environmental repercussions. The call from T&E to cruise operators is clear: invest in sustainable technologies to mitigate their environmental impact, particularly in terms of local air pollution. Although many operators are pivoting towards liquefied natural gas (LNG) as an alternative to traditional heavy fuel oils, T&E warns of the potential climate hazards. While LNG emits fewer pollutants, it also releases methane—a greenhouse gas significantly more potent than CO2—thereby posing a new environmental challenge.
Moreover, T&E’s analysis reveals that cruise ships currently benefit from considerable tax exemptions, including fuel duties and corporate taxes, which other transportation modes must adhere to. A proposed €50 ticket tax on cruise passengers could potentially generate €1.6 billion globally, funds that could be pivotal for climate finance and ensuring that luxury travel modes contribute their fair share to environmental efforts. This emphasises the need for cruise operators to take decisive action in cleaning up their ecological act.
As Inesa Ulichina from T&E succinctly puts it: “Today’s cruisezillas make the Titanic look like a small fishing boat. How much bigger can these giants get?” The industry stands at a crossroads, where the adoption of ‘green’ e-fuels could herald the future of sustainable maritime activity. With limited availability, e-fuels could nonetheless power nearly 4% of European shipping by 2030. Given their predictable routes and schedules, cruise lines are thus well-placed to become pioneers in e-fuel utilisation.
The cruise industry must embrace sustainable practices to ensure its future growth does not come at an unacceptable environmental cost.
