
In 1986, Lake Nyos in Cameroon quietly released a cloud of carbon dioxide that rolled through nearby villages and killed 1,746 people in a single night, along with every cow, bird, and insect within a 25-kilometre radius
A volcanic lake's silent exhalation became the deadliest natural disaster nobody heard coming—teaching scientists that some catastrophes announce themselves not with a bang, but with an invisible, suffocating fog.














