Editing Ship (section)

===Exhaust emissions===
[[File:K-stack.jpg|thumb|upright|Exhaust stack on a container ship.]]
[[exhaust gas|Exhaust]] emissions from ships are considered to be a significant source of [[air pollution]]. "Seagoing vessels are responsible for an estimated 14 percent of emissions of nitrogen from fossil fuels and 16 percent of the emissions of sulfur from petroleum uses into the atmosphere."<ref name="Panetta" /> In Europe ships make up a large percentage of the sulfur introduced to the air, "as much sulfur as all the cars, [[Truck|lorries]] and factories in Europe put together".<ref name="Harrabin" /> "By 2010, up to 40% of air pollution over land could come from ships."<ref name="Harrabin" /> Sulfur in the air creates [[acid rain]] which damages crops and buildings. When inhaled, sulfur is known to cause [[respiratory]] problems and increase the risk of a [[myocardial infarction|heart attack]].<ref name="Harrabin" />