Secrets behind London's mysterious deadly fog revealed – Can it help save China?

No one gave the fog much thought at first. Fog is a regular occurrence in London, after all. It wasn’t until the late afternoon, when the air took on a yellow color and began to smell like filthy sewers, that the people of London grew concerned. Hoping the odd fog would clear by morning, they… Continue reading Secrets behind London's mysterious deadly fog revealed – Can it help save China?