How can cruise ships reduce their carbon footprint?

2 Improve energy efficiency

Another way to reduce cruise ship emissions is to improve their energy efficiency, which means using less fuel to provide the same level of service and comfort. There are many ways to achieve this, such as optimizing the ship design, installing more efficient engines and propellers, using waste heat recovery systems, and implementing smart energy management systems. For example, some cruise ships use air lubrication systems, which inject air bubbles under the hull to reduce friction and drag, saving up to 10% of fuel. Another example is using solar panels or wind turbines to generate renewable electricity on board.

3 Reduce waste and water consumption

Cruise ships also generate a lot of waste and consume a lot of water, which can have negative impacts on the environment and the local communities. Reducing waste and water consumption can not only lower the carbon footprint of cruise ships, but also protect the marine biodiversity and the resources of the destinations. Some of the measures that can be taken include recycling and composting waste, banning single-use plastics, using biodegradable or reusable packaging, installing water-saving devices, and treating wastewater before discharge.

4 Promote eco-friendly practices

Cruise ships can also reduce their carbon footprint by promoting eco-friendly practices among their staff and passengers. This can involve educating them about the environmental issues and the best practices to follow, providing incentives and rewards for green behavior, and offering more sustainable options and activities. For example, some cruise ships offer carbon offset programs, where passengers can pay a voluntary fee to support projects that reduce greenhouse gas emissions elsewhere. Another example is providing bike rentals, electric vehicles, or public transportation options for shore excursions.

5 Support local communities and conservation efforts

Finally, cruise ships can also reduce their carbon footprint by supporting the local communities and the conservation efforts of the places they visit. This can involve respecting the culture and the customs of the locals, buying local and organic products, hiring local staff and guides, and donating to local charities and organizations. Moreover, cruise ships can also support the conservation of the natural and cultural heritage of the destinations, by avoiding sensitive areas, following the regulations and guidelines, and participating in the protection and restoration of the environment.