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The original was posted on /r/todayilearned by /u/ralphbernardo on 2025-12-08 22:45:25+00:00.

Original Title: TIL about exploding lakes, also called limnic eruptions or lake overturns—rare natural hazards where dissolved CO₂ suddenly erupts from deep lake waters, forming a deadly gas cloud. In 1986, Lake Nyos in Cameroon released 80 million cubic meters of CO₂, killing around 1,700 people by asphyxiation.