A recent study from the Chalmers University of Technology in Sweden warns that switching to ammonia as a marine fuel in the quest for decarbonisation could lead to new environmental problems.

The research team conducted life cycle analyses for batteries and three electrofuels, including ammonia. They found that the use of ammonia could cause issues such as eutrophication, acidification, and emissions of a potent greenhouse gas commonly known as laughing gas.

More details: here.