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A combination of the recession and growing awareness in the shipping industry about climate change emissions encouraged many ship owners to adopt "slow steaming" to save fuel two years ago. This lowered speeds from the standard 25 knots to 20 knots, but many major companies have now taken this a stage further by adopting "super-slow steaming" at speeds of 12 knots (about 14mph).Zum Vergleich: Die Segelfrachter im 19. Jahrhundert hatten 14-17 Knoten, der Rekord lag bei 22 Knoten.
Die faseln jetzt natürlich was von CO2-Emissionen und Umweltschutz, aber der eigentliche Grund ist:
It is believed that [Maersk] has saved more than £65m on fuel since it began its go-slow.(Danke, Gerry)