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Ship fuels and energy efficiency improvements

Shipping is facing a huge challenge with demands for a 40-50 percent reduction in carbon dioxide emissions by 2050 compared to 2005 emissions, while there is a political will to increase the share of maritime transport.

Sharply increased energy efficiency will be crucial in reducing greenhouse gas emissions. However, projections show that globally it will be difficult to reduce shipping emissions through measures that are known today.


Liquefied natural gas, LNG, is a fuel that reduces emissions of air pollutants but whose climate impact is only slightly less than conventional ship fuel. Liquefied biogas, LBG, has very good climate performance and can be a good alternative to LNG. Methanol is also now being tested in full scale. In the future, these fuels can be replaced by alternatives made from biomass. Increased use of electricity and wind is also underway in shipping. Increased energy efficiency leads both to less emissions of greenhouse gases but also cleaner air in the port city.

We help you with:

  • Comparative analyzes of different fuels, often in connection with emission measurements
  • Emission inventories and action analyzes for ports


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Last updated: 2021-08-11

IVL Swedish Environmental Research Institute

About IVL

IVL Swedish Environmental Research Institute has a wide environmental profile. We combine applied research and development with close collaboration between industry and the public sphere. Our consultancy is evidence-based, and our research is characterized by interdisciplinary science and system thinking.


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