Mystery of 1952 London fog that killed 12,000 finally solved
http://www.usatoday.com/story/news/world/2016/12/13/scientists-say-theyve-solved-mystery-1952-london-killer-fog/95375738/ [www.usatoday.com]
2016-12-14 00:30
Remember kids, don’t play in the sulfuric acid.