Sort of off-topic, but I just wanted to point out the environmental impact that these ships have one the planet. According to Wikipedia, "maritime transport ac

Sort of off-topic, but I just wanted to point out the environmental impact that these ships have one the planet. According to Wikipedia, "maritime transport accounts for 3.5 to 4 percent of all climate change emissions, primarily carbon dioxide." [1] Oil spills, ballast water, sewage and other issues that they cause are NOT counted in that 3.5-4% figure. There are plenty of other jaw-dropping statistics about maritime trade, but I can't find bulletproof sources for them. For example, it is estimated that a big cargo ship can produce as much pollution as 50 millions cars and it is said that the biggest 15 ships in the world produce more pollution than all the cars in the world combined. [1] https://en.wikipedia.org/wiki/Environmental_impact_of_shipping https://en.wikipedia.org/wiki/Environmental_impact_of_shippi...