Slowing Down Ship Speed Could Help Save the Planet Time to Rethink for Bangladesh
Author : Afifat Khanam Ritika, Research Officer, BIMRAD
29 Jun 2022

About eighty percent (80%) of global trade by volume, and seventy percent (70%) by value, is carried out by sea and handled by ports worldwide. Marine ships in the world’s oceans are increasing. It includes watercraft ranging from small boats to large ships. Commercial ships are growing in number and size, linked to overall economic growth (United Nations Conference on Trade and Development [UNCTAD], 2018). Concern about the potential effects of ship noise and their emissions on marine aquatic animals is a common problem. The noise field around a boat or ship depends on source frequency and the environment in which the vessel travels, and it changes with vessel speed, load, size, and other factors. There is a large variety of motorized boats and ships, such as recreational boats, passenger and car ferries, high-speed craft, cruise ships, tug boats, dredgers, dry and liquid cargo vessels, fishing vessels, oil and gas production platforms, research vessels, naval ships, submarines, etc.....