NYK Line, ClassNK and IHI Power Systems have signed a joint research and development (R&D) agreement to explore the practical use of the first ammonia-fuelled tugboat in the world.
Following the Paris Agreement in 2016, the call for decarbonisation gained momentum and the shipping sector was planning to reduce greenhouse gas (GHG) emissions.
In 2018, the International Maritime Organisation (IMO) aimed to reduce the GHG emissions from the shipping sector by 50% by 2050.
Ammonia does not emit carbon...
https://www.ship-technology.com/news/three-japanese-companies-ammonia-fuelled-tugboat/