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Publisher Summary This chapter describes methodology and results from a Norwegian study, performed on contract for the Norwegian State Pollution Control Authority to determine the current levels of exhaust-gas emissions from international shipping. Because of the near relationship between the amount of burnt fuel and air pollution, sea transportation represents an environmental-friendly form of transportation. The only method capable of charting exact figures for exhaust-gas emissions and inventories is to install equipment for continuous emission registration on all ships combined with a detailed registration of each specific ship's movement on a worldwide basis. In the Norwegian study, the exhaust gas emissions from ships in international trade and the global distribution have been computed based on the ships bunker consumption combined with the transport pattern of the sea-borne cargo. The stipulated bunker consumption figures have been compared with the statistical figures for bunker deliveries, and adequate corrections have been made. The basic input data for the computations include international sea-borne transport pattern, ships bunker consumption, and exhaust-gas emission. |
