The lethal effects of London fogs

 Before I went, I looked some information of the contamination on that times. Here I found that on 1952, the pollution killed 12000 people in London. There was a lot of contamination because of the factories. It was the first time on the history that the Earth was polluted. People didn´t know the effects and the were very big. For example, they had a constant fog that didm´t allow them to see very well on the streets or they could´t breath very well.