We continuously push the boundaries of what is technically possible at sea and are actively engaged in the development of next generation environmental technology to achieve net zero emissions for our marine operations by 2050.



Decarbonizing our marine operations is a core element of our sustainability strategy.

To demonstrate our commitment to this we have in place an ambitious goal of net zero emissions by 2050, which goes further than the current IMO (International Maritime Organization) ambition of 50% reduction in greenhouse gases by 2050.

Read our latest Sustainability report:

2021 Sustainability Report


Read also our previous reports:


2020 Sustainability Report

2019 Sustainability Report

Reducing Carbon Intensity

By the end of 2019, we had successfully lowered our carbon intensity by 28% compared to 2008. Whilst the pandemic has meant we have been unable to track accurately the carbon intensity improvements across our fleet, we currently estimate that we will meet the IMO intensity ambition of 40% reduction by 2027 - three years earlier than the industry target date of 2030 set by the IMO and adopted as a goal by CLIA.

Reducing Carbon Intensity

Improving Quality of Ships Emissions

Our long-term goal is to achieve zero emissions across all operations, at sea and ashore. We aim to meet the industry target of 40% improvement in emissions intensity by 2030, compared to a 2008 baseline, as part of our journey towards achieving net carbon neutral operations by 2050.

Today, 14 of 19 MSC Cruises ships are equipped with Exhaust Gas Cleaning Systems (EGCS) to reduce sulphur from ship emissions by 98%.

Our hybrid EGCS can operate in an open or closed loop, allowing wash water to be collected in holding tanks to avoid direct discharge into ports or other sensitive areas.

MSC Seashore is our third ship, after MSC Grandiosa and MSC Virtuosa, to be fitted with a selective catalytic reduction (SCR) system, which significantly reduces nitrogen oxides (NOx) from the ship exhaust and transforms it into harmless nitrogen and water, through advanced active emissions control technology. SCR systems will be on fitted on all future ships.

By the end of 2021, seven of our 19 ships, including all our new ships, had been fitted with shore power capability. This enables onboard engines to be switched off, cutting emissions. We are committed to using these systems whenever shore power is available.

Our advanced technologies have allowed SOx and NOx emissions to be significantly reduced over time

Improving Quality of Ships Emissions

Exploring New Technologies and Solutions

The adoption of LNG as fuel on up to nine of our future ships will allow a reduction of carbon emissions by as much as 20% compared with same ship using conventional fossil fuels. Compared to using conventional fuel, LNG reduces SOx emissions by more than 99% and NOx emissions by up to 85%. It also essentially eliminates particulate matter in the exhaust. Our first LNG-powered ship, MSC World Europa, will enter service in 2022.

We are also investing in a ground-breaking project that aims to integrate a Solid Oxide Fuel Cell (SOFC) technology demonstrator onboard MSC World Europa using LNG to produce electricity and usable heat. This process is around 25% more efficient than a medium speed internal combustion engine, thereby reducing the emissions by the equivalent amount.

At present, this technology has only been tested in a laboratory but if the onboard results match, or even exceed, our estimates then we plan to increase the scale of fuel cells to support energy needs of future ships.

In parallel, we are evaluating the use of batteries as a supporting energy solution, providing smart energy storage and a ready to use power reserve when required. The evaluation will incorporate full life cycle analysis to validate the large-scale use of batteries.

New technology and low carbon fuels are fundamental to our carbon reduction strategy


Welcome to the future of cruising with MSC World Europa, our first LNG powered ship and one of the most environmentally-advanced ships at sea.

Exploring New Technologies and Solutions

Energy Efficiency and Advanced Ship Design

For every new ship class that we develop, we completely revise the design to achieve optimal efficiency. We rethink the ship’s overall structure, deck space, weight distribution including the ship’s hull, rudder and bulbous bow to reach optimal hydrodynamics, aerodynamics, and maximize energy and fuel efficiency.
Reducing air pollution
We have installed hybrid Exhaust Gas Cleaning Systems (EGCS) on 14 of our cruise ships which reduce SOx emissions by 98%, and Selective Catalytic Reduction Systems on 3 ships, which reduces NOx by up to 90%.

Underwater radiated noise
Hull and propellers are designed, built and installed to minimise noise or vibration that might impact aquatic mammals.

Wastewater treatment systems
Our fleet is in full compliance with wastewater discharge rules and, in 11 of our ships, advanced systems deliver treated water near to tap water standard.

Our new ships are capable of providing all onboard freshwater needs from seawater.

Waste management
Waste is compacted, separated or incinerated, and residual waste is carefully delivered to dedicated port reception facilities for recycling or disposal.

New fuel types
In 2022, we will launch our first LNG-powered ship. LNG largely eliminates sulphur oxides (SOx) emissions and particulate matter in the exhaust, reduces nitrogen oxides (NOx) emissions by up to 85%, and CO2 by up to 25%.

Energy efficiency
On new ships’ lighting is provided by energy-efficient LED and our heating, ventilation and air conditioning system self-adjusts to the weather and the number of passengers onboard.

Shore power capability
7 of our ships are now able to connect to shore power, potentially enabling the onboard engines to be switched off whilst in berth

Advanced analytics
Digitalisation is allowing us to anticipate and address inefficiencies in systems and equipment, and provide the crew with specific guidance for performance improvements.

Heat recovery
Heat recovery systems allow the intelligent redistribution of heat and cold where needed throughout the ship.

Trim stabiliser
A software application monitors the ship’s stability to support the deck officers in optimising the vessel’s trim – and therefore reducing fuel consumption.

Reducing drag
Our ship hulls are coated with hi-tech paints that slow the growth of marine organisms, thereby reducing drag and improving energy efficiency.

Ballast water treatment system
All ballast water is filtered and UV treated before being discharged at sea to ensure that it does not contain harmful aquatic organisms and pathogens.


Energy Efficiency and Advanced Ship Design

Water and Wastewater Management

Our ships are fitted with the latest freshwater production plants and 80% of all freshwater used onboard is self-produced. This means that we minimize taking this precious resource from destinations ashore where freshwater can be scarce.
We aim to reduce onboard water demand by 3% per year for each ship, in a combination of monitoring usage, fitting water saving technologies, and training and educating crew.
All wastewater on board is discharged to sea according to stringent international, national, and local regulations in force.

Since 2007, we have equipped our new ships with Advanced Wastewater Treatment Systems (AWTS) that turn black and grey wastewater to near tap-water quality.

In addition, all our ships are able to discharge treated water at port where adequate port reception facilities connected to local wastewater treatment systems are available. This is notably the case in environmentally sensitive areas, such as the Baltic Sea.

Although regulations generally allow untreated sewage (black water) to be discharged once a ship is traveling more than 12 nautical miles from land, we do not allow this under normal operation in any circumstances and require that the ship requests permission from the Company, when a rare and exceptional discharge is necessary.

Regulations also permit the disposal of bilge and oily water at sea if it has been treated through an approved oily water separator. However, we follow a strict policy not to do this and instead discharge ashore all bilge and oily water, where it can be properly treated at approved port reception facilities.

Our advanced wastewater treatment systems process wastewater to near tap water quality.

Water and Wastewater Management

Ballast Water Treatment

One of the challenges in operating a cruise ship is keeping the weight, center of gravity, and stability requirements balanced and consistent throughout a voyage. To help us do this, there are tanks distributed in the lower part of a ship which can be filled with seawater to act as ballast.

Scientific studies over the years have revealed that this practice has allowed bacteria, microbes, small invertebrates, larvae and other microorganisms to be transported from one location to another around the world, potentially threatening local ecosystems.
To prevent this, and to comply with strict international regulations, all our ships are fitted with a ballast water treatment system that complies with the standards set by the UN international governing body, the International Maritime Organization (IMO). This system protects against the involuntary introduction of invasive marine species. In 2021, 100% of ballast water was filtered and UV treated before being discharged at sea.

We have adopted strict treatment regimes to remove threats of species transportation through ballast water

Ballast Water Treatment

Solid Waste Management

All our ships are equipped with comprehensive solid waste management and recycling facilities.

All organic waste, as well as recyclable disposable items including plastics, metals, paper and glass, are collected and separated by specially trained waste handling crew members. Waste is compacted, separated or incinerated, and residual waste is carefully delivered to dedicated port facilities.
Training our crew, not only to handle waste, but to understand the importance of waste management, is central to what we do. Our crew members receive ongoing training to ensure they remain abreast of the highest standards and can inform our guests about the need to separate and recycle.

The Environmental Compliance Officer on every ship is responsible for ensuring waste management protocols are followed

Solid Waste Management


For us Sustainability means protecting the environment, supporting the people who work with us and choose to travel with us,
as well as the communities and places that we visit and do business with.

Discover our sustainability programme organised around four key pillars: Planet, People, Place and Procurement.