CO2 asphyxiation can happen as a result of lake turnover. Perhaps the most famous case is Lake Nyos where 1700 people died in 1986. https://www.sciencealert.co

CO2 asphyxiation can happen as a result of lake turnover. Perhaps the most famous case is Lake Nyos where 1700 people died in 1986. https://www.sciencealert.com/how-this-small-lake-in-africa-once-killed-1-700-people-overnight-and-we-still-don-t-know-why https://www.sciencealert.com/how-this-small-lake-in-africa-o...