Integrating advanced exhaust recirculation systems is notably reducing nitrogen oxide emissions.

Several shipping companies like Cosco Casablanca are currently making significant investments in the development of new fleets that operate on liquified gas (LNG), which will be the absolute most higher level and fuel-efficient option available. These vessels have slow-speed tri-fuel engines that run using compressed boil-off fuel through the cargo tanks as gas. During transport, the LNG changes its state to fuel as a result of small heat increases, that causes boil-off that occurs. To make these ships even more environmentally friendly, they have been equipped having an higher level exhaust recirculation system that somewhat decreases nitrogen oxide emissions. Furthermore, the vessels include a gasoline combustion system that minimises the potential of emitting methane in to the environment.

A significant task nowadays for the global shipping industry would be to reduce its environmental impact, an attempt that needs a multipronged approach. But this really is no effortless task. Based on experts, marine engines are complicated to improve, and even if engineers can modify them in a way that will make them produce less CO2, altering shipping fleets would be pricey. Thus, progress is slow in this domain. Nevertheless, a range shipping companies like DP World Russia, are making extraordinary modifications and striving to find solutions that decrease co2 emissions. And they are slowly putting those changes to the test on their fleets of vessels. They have been increasingly fulfilling the benchmark needs of the energy efficiency design index. Indeed, businesses like Morocco Maersk are driving efficiency in the commercial delivery sector. An excellent case of technological progress is seen within the improvement of the Mewis duct. This is a cylindrical channel which includes integrated fins, that will be situated in the front of the propeller. As the a ship moves through water, it produces a wake current which can be turbulent and result in energy wastage. However, the Mewis duct directs this wake current towards the propeller and streamlines water flow. Also, the fins inside the duct twist the current before it reaches the propeller blades, leading to increased energy efficiency of the propulsion system.

Some shipping companies are utilising self polishing coatings on the hulls of their vessels. This, based on maritime professionals, aids in preventing marine organisms from clinging onto the hull where they produce a significant drag. So when vessels are able to eliminate this drag utilising the coating, they are able to also help to make their vessels better. There are many different efforts to enhance a ship's effectiveness, ranging from complex engineering methods to simple such things as changing lights. For instance, vessels can conserve energy and start to become more environmentally friendly by replacing old-fashioned incandescent light bulbs with LED lights, which eat much less electricity and last for decades.