Here is the link between the Y-shape hull and lowering emissions. The use of the Y-shape Hull makes transporting and fueling your ship with LNG simply safer. Your cryogenic tanks are better protected and the risk for tank rupture decreases significantly.
Liquid Natural Gas creates very little CO2 and NOx emissions, and no particulate matter. When your ship sails on duel fuel, the combination of 80% LNG and 20% diesel, the transport of your cargo becomes less harmful for the environment.