Dirty diesel: why ships are the worst offenders

Ships belch out most of their sulphurous toxins far from land, but they could still be responsible for 60,000 deaths each yearIn all the controversy over toxic air pollution from diesel cars, little is heard of a worse source of pollution – shipping. Large ocean-going ships tend to use bunker fuel, the world’s dirtiest diesel fuel – a toxic, tar-like sludge that usually contains 3,500 times more sulphur than the diesel used for cars. And it’s also cheap. Shipping accounts