As shipping looks to reduce its greenhouse gas emissions, few fuels have been as energetically discussed as liquified natural gas (LNG). As uptake of LNG accelerates, the fuel’s impact on emissions is being even more widely debated.
The International Maritime Organization is aiming to at least halve greenhouse gas (GHG) emissions from shipping by 2050. LNG is an ideal transition fuel to begin that journey. Although it is a fossil fuel, the same supply, storage and combustion technologies can later be used with carbon-neutral bio- and synthetic gas as these become available. As LNG bunkering infrastructure is already widespread, Wärtsilä believes this pathway represents the simplest, fastest and most cost-efficient way for shipping to reach its 2050 vision.
Methane is the main component of LNG and a potent greenhouse gas, with a global warming potential many times that of carbon dioxide. Its escape during the production and use of LNG reduces the positive impact of the fuel on GHG emissions.