One night in 1986, a peaceful lake in Cameroon released an invisible cloud of carbon dioxide that swept through nearby villages — killing people and animals in their sleep and revealing one of the rarest natural disasters on Earth.
Imagine going to sleep in a quiet farming village, windows open to a warm August night, a lake sitting still in the valley below the way it had for as long as anyone could remember. Nothing announces itself. No tremor, no smell, no sound loud enough to wake a sleeping household. By morning, nearly everyone … Read more