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

Some shipping companies are using self polishing coatings on the hulls of the vessels. This, based on maritime experts, helps prevent marine organisms from latching on the hull where they create a significant drag. So when ships are able to eradicate this drag using the coating, they can additionally help to make their ships more efficient. There are many different efforts to boost a ship's efficiency, ranging from complex engineering methods to easy things like changing lights. As an example, ships can conserve power 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 many years.

Several shipping companies like Cosco Casablanca are making significant investments in the growth of new fleets that operate on liquified natural gas (LNG), that will be probably the most advanced and fuel-efficient remedy available. These ships have slow-speed tri-fuel engines that run on compressed boil-off fuel from the cargo tanks as gas. During transportation, the LNG changes its state to fuel because of small temperature increases, which causes boil-off that occurs. To produce these vessels a lot more environmentally friendly, they have been fitted having an advanced exhaust recirculation system that somewhat reduces nitrogen oxide emissions. Furthermore, the ships include a fuel combustion system that minimises the potentiality of emitting methane into the environment.

An important task nowadays for the global shipping industry is to reduce its environmental footprint, an attempt that requires a multipronged approach. But this really is no easy task. Based on specialists, marine engines are complicated to improve, and even if designers can change them in a way that can make them emit less CO2, modifying delivery fleets will be quite expensive. Thus, progress is sluggish in this domain. However, a number of shipping companies like DP World Russia, are making significant changes and striving to make solutions that reduce co2 emissions. Plus they are gradually placing those changes to work on their fleets of vessels. They have been increasingly meeting the benchmark demands of the energy efficiency design index. Indeed, businesses like Morocco Maersk are creating efficiency in the commercial delivery sector. A great case of technological progress can be seen into the improvement of the Mewis duct. This is a cylindrical channel which includes integrated fins, which is situated in the front of the propeller. As the a ship moves through water, it creates a wake current that may be turbulent and result in power wastage. Nonetheless, the Mewis duct directs this wake current towards the propeller and streamlines the water movement. Furthermore, the fins in the duct twist the current before it reaches the propeller blades, which leads to increased energy efficiency for the propulsion system.