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

Some shipping companies are using self polishing coatings on the hulls of the ships. This, based on maritime experts, aids in preventing marine organisms from clinging onto the hull where they create a significant drag. When ships have the ability to eradicate this drag using the this layer, they can also make their ships better. There are many different efforts to enhance a ship's efficiency, including complex engineering solutions to simple things such as changing lights. For instance, vessels can conserve energy and start to become more environmentally friendly by replacing conventional incandescent LED lights with LED lights, which eat less electricity and endure for many years.

An important task nowadays for the global shipping industry is always to reduce its ecological footprint, an effort that needs a multipronged approach. But this will be no easy task. Based on specialists, marine engines are complicated to change, and even if engineers can change them in a fashion that is likely to make them emit less CO2, altering delivery fleets could be quite expensive. Hence, progress is slow in this domain. However, a range shipping companies like DP World Russia, are making awesome changes and striving to get solutions that decrease co2 emissions. Plus they are slowly placing those changes to work on their fleets of ships. They have been increasingly meeting the benchmark needs of the energy efficiency design index. Certainly, businesses like Morocco Maersk are creating effectiveness in the commercial delivery sector. A fantastic case of technical progress can be seen in the improvement of the Mewis duct. This is a cylindrical channel that has integrated fins, which is situated in the front of the propeller. As the a ship moves through the water, it produces a wake current that may be turbulent and result in energy wastage. Nevertheless, the Mewis duct directs this wake current towards the propeller and streamlines the water flow. Also, the fins in the duct twist the current before it reaches the propeller blades, that leads to increased energy efficiency for the propulsion system.

A few shipping companies like Cosco Casablanca are making significant investments within the development of new fleets that operate on liquified gas (LNG), which can be probably the most advanced level and fuel-efficient remedy available. These vessels include slow-speed tri-fuel engines that run on compressed boil-off gasoline from the cargo tanks as fuel. During transportation, the LNG changes its state to gas as a result of small heat increases, which in turn causes boil-off to happen. To produce these ships even more environmentally friendly, they are equipped having an higher level exhaust recirculation system that notably decreases nitrogen oxide emissions. Also, the ships are equipped with a fuel combustion system that decreases the potentiality of releasing methane into the atmosphere.