Baron of Renfrew (ship) was exempt from the high taxes on imported timber. She was built by Charles Wood, Anse du Fort, Quebec, Canada, on his own account. She followed the construction of a similar disposable ship, the barque "Columbus" built the year before. On August 23, 1825 under the command of captain Matthew Walker the ship left Quebec with a crew of 25 men and a cargo of 9000 tons timber (probably ship and cargo weight, both timber) bound for London, England. On October 21 of the same year the ship appeared in the English Channel but stranded the day after on the
Cargo ship Atlantic Ocean, since they do not fit the locks on the Saint Lawrence Seaway. Due to its low cost, most large cargo vessels are powered by bunker fuel also known as Heavy Fuel Oil which contains higher sulphur levels than diesel. This level of pollution is increasing: with bunker fuel consumption at 278 million tonnes per year in 2001, it is projected to be at 500 million tonnes per year in 2020. International standards to dramatically reduce sulphur content in marine fuels and nitrogen oxide emissions have been put in place. Among some of the solutions offered is changing over