(And How Can You Offset It?)

Whether it’s a weekend cruise along the Côte d’Azur or a transatlantic crossing, every yacht burns fuel, and every liter of fuel produces carbon emissions.

For many owners, the question isn’t whether their yacht creates emissions – it’s how much. Once you know that, you can start making informed decisions about reducing your environmental impact.

Where do a yacht’s carbon emissions come from?

The biggest contributor is fuel.

Every time the main engines, generators or tenders are running, diesel is being burned, releasing carbon dioxide (CO₂) into the atmosphere.

The amount of CO₂ your yacht produces depends on several factors, including:

• The type of fuel used
• Annual fuel consumption
• Engine efficiency
• Cruising speed
• Generator use
• How often the yacht operates throughout the year

Whether you’re spending the summer cruising the Mediterranean or embarking on longer passages, fuel consumption is the biggest driver of your yacht’s carbon footprint.

How much CO₂ does a superyacht produce?

There isn’t a single answer because every yacht operates differently.

A yacht that cruises every weekend will have a very different carbon footprint from one that spends months exploring remote destinations or crossing oceans.

Rather than estimating emissions based on yacht size alone, the most accurate approach is to calculate them using annual fuel consumption.

This provides a far clearer picture of your environmental impact and forms the basis for reliable carbon offsetting.

Why understanding your emissions matters

Many owners invest heavily in maintaining their yachts to the highest standards.

Understanding your carbon footprint is simply another way of understanding how your yacht operates.

It can also help when:

• discussing sustainability with guests or charter clients
• setting environmental goals
• supporting ESG initiatives
• making informed decisions about carbon offsetting

As sustainability becomes a bigger focus across the industry, more owners are looking for practical ways to understand and manage their environmental impact.

Can you reduce your emissions?

Improving fuel efficiency is always the first step where possible.

Simple changes can help reduce fuel consumption, including:

• Planning efficient routes
• Avoiding unnecessary engine and generator hours
• Keeping the hull and propellers clean
• Maintaining engines regularly
• Cruising at efficient speeds

While these measures can make a difference, fuel use remains an unavoidable part of operating most superyachts. That’s where carbon offsetting can help.

What is carbon offsetting?

Carbon offsetting allows owners to support certified environmental projects that reduce or avoid greenhouse gas emissions elsewhere.

It doesn’t remove emissions from your yacht, but it helps balance their impact by supporting projects that achieve measurable and independently verified carbon reductions.

Choosing transparent, accredited projects gives owners confidence that their contribution is making a genuine difference.

Calculating your yacht’s emissions

Before you can offset your emissions, you first need an accurate estimate of your carbon footprint.

At Growing Decks, our online calculator estimates annual CO₂ emissions using two simple pieces of information: fuel type (diesel or gasoline) and the amount of fuel burned each year.

Using this information, the calculator estimates your annual emissions and calculates the contribution required to support certified carbon reduction projects.

If you don’t know your annual fuel consumption, your captain, engineer or fuel records can usually provide this information.

The calculator is designed to make understanding your yacht’s emissions straightforward, without complicated calculations or technical knowledge.

Looking beyond carbon

At Growing Decks, we believe sustainability extends beyond carbon emissions.

Alongside certified carbon offsetting for yacht and private jet fuel, we also offer a responsible teak replacement initiative. For every yacht owner who chooses to participate, teak trees are planted and maintained on managed farms in Tanzania, helping to replace the teak used in yacht decking.

The two initiatives are separate, allowing owners to address both their fuel emissions and their use of natural resources.

Final thoughts

Super-yachts will always require fuel, and with that comes carbon emissions.

The important step is understanding those emissions and deciding how you’d like to respond.

Whether that’s improving fuel efficiency, supporting certified carbon reduction projects, or taking part in responsible teak replacement, every decision contributes to a more considered approach to yachting.

Knowing your yacht’s carbon footprint is where that journey begins.