Just one ship emits the same amount of toxic diesel fumes as 688 lorries per hour

Just one ship emits the same amount of toxic diesel fumes as 688 lorries per hour
More people have died from air pollution in London in the last 18 months then they did throughout the whole of the Great Smog in the 1950s
Air pollution is a problem for other places, for example, Beijing, where all those dirty factories churn out the products we buy… or is it?