In 1986, Lake Nyos in Africa released over 100,000 tons of carbon dioxide in a sudden natural disaster known as a limnic eruption. The invisible gas cloud rolled through nearby villages, suffocating 1,700 people and 3,500 livestock in their sleep. The lake, sitting atop volcanic formations, had accumulated CO₂ deep underwater for years. When it was suddenly released, the heavier-than-air gas displaced oxygen across a 16-mile radius, leaving no chance of escape. Important Details: • Occurred in 1