This African lake may literally explode—and millions are at risk nationalgeographic.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nationalgeographic.com Daily Mail and Mail on Sunday newspapers.
Carbon dioxide is trapped below the Corta Guadiana lake. Click to read more. Killer lakes such as the Democratic Republic of Congo's Lake Kivu and Cameroon's Lakes Nyos and Monoun have been recorded in history as small bodies of water that contain a hazardous agent or substance that is deadly not only to marine life but also to humans.