• Ocean acidification

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Acidification is a result of the world’s oceans absorbing increasing amounts of carbon dioxide (CO2) from the atmosphere. The CO2 dissolves in seawater, causing a chemical reaction resulting in dissolved free carbon dioxide, carbonic acid, bicarbonate and carbonate. The hydrogen ion concentration increases, while the ocean’s pH value decreases.

Dangers of ocean acidification

Consequences of this disrupted ocean chemistry include a lack or instability of the calcium carbonate minerals some marine species, like zooplankton, corals and shellfish, need to build their skeletons and shells, as well as a range of possible effects on immune systems, metabolic rates and breeding patterns of other ocean-dwellers. Combined with ocean warming and deoxygenation, acidification could lead to mass extinction of marine life.

How to fight ocean acidification

The first step towards fighting ocean acidification is to reduce the amount of atmospheric CO2 absorbed by the world’s oceans, which in turn means reducing the man-made emissions being released into our atmosphere.

30
%
of excess carbon dioxide emissions are absorbed into the ocean
55
million
years ago, the last great ocean acidification led to mass extinction
30
%
rise in ocean acidity since the 1800s

Fighting global ocean acidification – on the world’s oceans

At the end of the day, the source of the CO2 that causes ocean acidification is irrelevant to the result. Nevertheless, reducing CO2 emissions in marine shipping is a pretty obvious place to start. After all, a healthy ocean and thriving marine life is important to many of the seafaring businesses now rethinking and reducing their environmental impact. MAN Energy Solutions offers a range of solutions that reduce emissions or even remove them entirely, eventually helping the community achieve their own climate goals, as well as those set by international bodies.

Learn more about emission control

Supporting Maritime Energy Transition

MAN is driving the transition of marine vessels to LNG (liquefied natural gas) propulsion. A retrofit drastically cuts emissions, making marine transport cleaner and compatible with climate goals. In the long run, any vessel converted to LNG propulsion can be run on carbon-neutral synthesized fuels. The Maritime Energy Transition is essential not only to limit ocean acidification and preserve the marine environment, but also to future-proof seafaring industries.

Learn more about the maritime energy transition

20
%
reduction in carbon dioxide emissions in a vessel powered by LNG
99
%
reduction in SOx emissions by using LNG propulsions
90
%
reduction in NOx emissions in a vessel powered by LNG

Minimizing the shipping industry’s contribution to climate change

MAN Energy Solutions can help clients reach the International Maritime Organization’s (IMO) emission standards, with engines that operate more efficiently and produce less emissions, as well as upgrade existing engines. Among others, MAN Energy Solutions is focusing on hybrid solutions that combine modern combustion engines with electrical systems and storage solutions. With such solutions, it is possible to drive electrically in the port area. On the high seas and at full speed, however, emissions can be reduced by using low-emission fuels such as LNG (liquefied natural gas).

Learn more about our marine systems

We want to support the whole transition to more sustainable energy in marine shipping.

Bjarne Foldager, Head of Sales & Promotion for MAN Energy Solutions’ two-stroke engine business 

How marine shipping can reduce its CO2 emissions

Bjarne Foldager, Head of Sales & Promotion for MAN Energy Solutions’ two-stroke engine business explains what the International Maritime Organization’s (IMO) Greenhouse Gas (GHG) agreement means for the marine shipping industry and why MAN Energy Solutions is in favor of the new, stricter climate goals it sets.

Learn how marine shipping can help to achieve global climate goals