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Other than CO2 (see Seascapes No.104) ships also produce a number of atmospheric emissions which are considered harmful. They are products of combustion, and the most significant are sulphur oxides (SOx and nitrous oxides (NOx), along with tiny waste particles known as particulates. All are now being limited by international, regional and national laws and will be subject to increasing severity of regulations over the next few years. Emission Control Areas, where these limits apply, might be expected to spread around the world in the future.
What practical means can be undertaken to reduce, or even prevent any of these emissions entering the atmosphere? In the case of sulphur, the quality of the fuel that is used can be changed to low sulphur oil or distillates, which will make a marked difference. Alternatively, the emissions can be scrubbed to clean them before they pass into the atmosphere. Or it might be feasible to use liquefied natural gas which burns cleanly, or even biofuels, although there are issues about the use of products which would otherwise have been available for food, and objections to the felling of tropical rainforests for the planting of oil palms.
Complete Post at:
https://www.bimco.org/en/Education/Seascapes/Questions_of_shipping/Reduce_harmful_emissions.aspx
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