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

A few shipping companies like Cosco Casablanca are making significant investments within the growth of new fleets that run on liquified gas (LNG), that will be the most advanced level and fuel-efficient option available. These vessels are equipped with slow-speed tri-fuel engines that run on compressed boil-off fuel through the cargo tanks as fuel. During transportation, the LNG changes its state to gasoline as a result of small temperature rises, which in turn causes boil-off that occurs. To make these ships a lot more environmentally friendly, they have been equipped having an advanced exhaust recirculation system that dramatically decreases nitrogen oxide emissions. Furthermore, the vessels are equipped with a gas combustion system that lowers the potentiality of emitting methane in to the environment.

An important task nowadays for the global shipping industry is always to reduce its ecological impact, an attempt that will require a multipronged approach. But this might be no easy task. Based on specialists, marine engines are complicated to alter, and even if designers can alter them in a fashion that will make them emit less CO2, changing shipping fleets will be very costly. Hence, progress is slow in this domain. However, a number of shipping companies like DP World Russia, are making extraordinary modifications and striving to make solutions that decrease co2 emissions. Plus they are slowly placing those modifications to the test on their fleets of vessels. These are typically increasingly fulfilling the benchmark needs of the energy efficiency design index. Certainly, companies like Morocco Maersk are driving efficiency in the commercial shipping sector. An excellent example of technological progress can be seen into the enhancement of the Mewis duct. This is a cylindrical channel which includes incorporated fins, that will be located in the front of the propeller. As the a ship moves through the water, it produces a wake current that can be turbulent and result in energy wastage. However, the Mewis duct directs this wake current towards the propeller and streamlines the water movement. Additionally, the fins within the duct twist the current before it reaches the propeller blades, that leads to increased energy efficiency for the propulsion system.

Some shipping companies are using self polishing coatings on the hulls of their vessels. This, in accordance with maritime specialists, aids in preventing marine organisms from attaching onto the hull where they cause a significant drag. When vessels have the ability to eradicate this drag using the coating, they can additionally make their ships more efficient. There are various efforts to boost a ship's effectiveness, which range from complex engineering answers to simple things like changing lights. For example, ships can save power and start to become more environmentally friendly by changing traditional incandescent light bulbs with Light-emitting Diode lights, which eat less electricity and last for many years.