How 16 ships create as much pollution as all the cars in the world. The most staggering statistic of all. There are now an estimated 100,000 ships on the seas, and the fleet is growing fast . they can burn the cheapest, filthiest, high-sulphur fuel: the thick residues left behind in refineries after the lighter liquids have been taken. The stuff... - http://www.dailymail.co.uk/science...