2026 Outlook for Maritime Biofuels – The National Law Review

Maritime Biofuels and Sustainable Development Goals in 2026

Maritime biofuels are emerging as a pivotal element in the global effort to decarbonize the shipping industry in 2026. This report emphasizes the critical role of Sustainable Development Goals (SDGs), particularly SDG 7 (Affordable and Clean Energy), SDG 9 (Industry, Innovation, and Infrastructure), SDG 12 (Responsible Consumption and Production), and SDG 13 (Climate Action), in shaping the maritime biofuel sector. Various international, national, and local initiatives are facilitating the growth of biofuels as a sustainable energy source within maritime transport.

Introduction

Maritime shipping, responsible for transporting over 80% of global goods, consumes approximately 5% of the world’s annual oil supply, contributing significantly to greenhouse gas emissions. The industry faces increasing regulatory pressure to achieve net-zero emissions by 2050, aligning with SDG 13 (Climate Action). Biofuels have been identified as a promising alternative to traditional heavy fuel oils, offering lower greenhouse gas emissions and supporting SDG 7 (Affordable and Clean Energy).

Key statistics highlight the scale of the biofuel market:

• Ethanol production reached 116 billion liters in 2024.
• Biodiesel production approached 50 billion liters in 2024.
• The biofuels industry was valued at approximately 160.5 billion USD in 2025.
• Projected global demand for biofuels could exceed 140 million tons by 2028, with North America playing a critical role.

These developments underscore the importance of harmonizing regulations across international, national, and local levels to support sustainable maritime fuel adoption, in line with SDG 9 (Industry, Innovation, and Infrastructure) and SDG 12 (Responsible Consumption and Production).

International Initiatives

The International Maritime Organization (IMO), representing 176 member states, has been actively working on regulatory frameworks to reduce maritime emissions, directly contributing to SDG 13 (Climate Action). In October 2025, the IMO convened to vote on a new emissions tax, tradable permit system, and fuel standards under the proposed Net-Zero Framework targeting 2050 net-zero emissions.

1. Net-Zero Framework: If adopted, it would require ships to reduce greenhouse gas fuel intensity (GFI) or purchase credits for excess emissions, encouraging the use of biofuels with lower GFI such as those derived from soybean oil or waste cooking oil.
2. Implementation Timeline: Targeted for 2028, though adoption has been delayed due to opposition, notably from the United States.

Meanwhile, the European Union’s FuelEU Maritime program, effective January 2026, mandates ships operating within the EU and European Economic Area to reduce greenhouse gas intensity by using renewable or low-carbon fuels, supporting SDG 7 and SDG 13. Key features include:

• Requirement for on-shore power or zero-emission technology at European ports by 2030.
• Carbon intensity limits for ships above 5,000 gross tonnage.
• Exclusion of crop-based biofuels, favoring non-crop feedstocks like waste fats and grease, which may increase demand for sustainable biofuels.

National Developments

At the national level, legislative efforts aim to expand incentives for maritime biofuels, reinforcing SDG 12 (Responsible Consumption and Production) and SDG 13 (Climate Action). Notably:

• The Renewable Fuel for Ocean-Going Vessels Act was introduced in March 2025 to amend the Clean Air Act by including ocean-going vessel fuel as eligible for Renewable Fuel Standard (RFS) credits.
• This amendment would create an opt-in credit system encouraging the use of renewable fuels in maritime transport without mandating it, thus promoting market growth for sustainable fuels.

Local and Port-Level Initiatives

Local ports are increasingly adopting ambitious climate and air quality plans that often exceed international and national regulations, aligning with SDG 11 (Sustainable Cities and Communities) and SDG 13 (Climate Action). Examples include:

1. Port of Detroit: Aims for 50% of large vessels to use biofuel by 2027 and plans to meet 100% of biofuel demand by 2040.
2. Port of Seattle: Implemented a clean air strategy targeting the phase-out of high-intensity fuels.
3. Port Authority of Guam: Adopted a zero-emission target with a focus on energy resilience in its 2026 strategic framework.

These local initiatives are critical in driving demand for sustainable maritime fuels and enhancing compliance with evolving regulations.

Conclusion

In 2026, the maritime biofuel sector stands at a crossroads shaped by evolving international, national, and local regulatory frameworks. Industry stakeholders must prioritize understanding and adapting to these changes to capitalize on the growing market for sustainable maritime fuels. These efforts contribute directly to achieving multiple Sustainable Development Goals, including:

• SDG 7: Promoting affordable and clean energy through biofuel adoption.
• SDG 9: Encouraging innovation and infrastructure development in maritime transport.
• SDG 11: Supporting sustainable cities and communities via cleaner port operations.
• SDG 12: Advancing responsible consumption and production by shifting to renewable fuels.
• SDG 13: Taking urgent climate action to reduce greenhouse gas emissions.

Continued collaboration among international bodies, governments, industry players, and local authorities is essential to realize the full potential of maritime biofuels in achieving a sustainable and low-carbon future.

1. Sustainable Development Goals (SDGs) Addressed or Connected

1. SDG 7: Affordable and Clean Energy
   • The article discusses the growing use of maritime biofuels as a renewable energy source to replace traditional fossil fuels in shipping.
2. SDG 9: Industry, Innovation and Infrastructure
   • It highlights innovations in maritime fuel standards and the development of biofuel markets and infrastructure at international, national, and local levels.
3. SDG 12: Responsible Consumption and Production
   • Focus on reducing greenhouse gas emissions and promoting sustainable fuel consumption in maritime shipping.
4. SDG 13: Climate Action
   • The article centers on decarbonization efforts, net-zero emissions targets, and regulatory frameworks aimed at reducing maritime shipping emissions.
5. SDG 14: Life Below Water
   • By reducing emissions from shipping, the article indirectly supports the protection of marine ecosystems.

2. Specific Targets Under Those SDGs Identified

1. SDG 7: Affordable and Clean Energy
   • Target 7.2: Increase substantially the share of renewable energy in the global energy mix.
2. SDG 9: Industry, Innovation and Infrastructure
   • Target 9.4: Upgrade infrastructure and retrofit industries to make them sustainable, with increased resource-use efficiency and greater adoption of clean and environmentally sound technologies.
3. SDG 12: Responsible Consumption and Production
   • Target 12.2: Achieve the sustainable management and efficient use of natural resources.
   • Target 12.5: Substantially reduce waste generation through prevention, reduction, recycling, and reuse.
4. SDG 13: Climate Action
   • Target 13.2: Integrate climate change measures into national policies, strategies, and planning.
   • Target 13.3: Improve education, awareness-raising and human and institutional capacity on climate change mitigation, adaptation, impact reduction, and early warning.
5. SDG 14: Life Below Water
   • Target 14.3: Minimize and address the impacts of ocean acidification, including through enhanced scientific cooperation at all levels.

3. Indicators Mentioned or Implied to Measure Progress

1. Greenhouse Gas Fuel Intensity (GFI)
   • The article mentions GFI as a key metric in the IMO’s Net-Zero Framework and the EU’s FuelEU maritime program to measure emissions intensity of fuels used by ships.
2. Volume of Biofuel Production and Consumption
   • Statistics on ethanol and biodiesel production volumes (116 billion liters ethanol, 50 billion liters biodiesel in 2024) imply tracking production as an indicator.
   • Demand projections for biofuels (140 million tons by 2028) serve as indicators of market growth and adoption.
3. Renewable Fuel Standard (RFS) Credits
   • Use and retirement of RFS credits for maritime biofuels indicate compliance and market participation.
4. Port-Level Biofuel Usage Targets
   • Examples include the Port of Detroit’s goal for 50% of large vessels to use biofuel by 2027 and 100% biofuel demand coverage by 2040.
   • Local port climate and air quality plans set measurable targets for sustainable fuel use.
5. Regulatory Compliance Metrics
   • Adoption and implementation of emissions taxes, tradable permits, and fuel standards as regulatory indicators of progress.

4. Table of SDGs, Targets, and Indicators

Source: natlawreview.com