This happened twice in the 80s in Africa killing around 1700 people.

    • teft@lemmy.worldOP
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      5 days ago

      It can only happen in the tropics near volcanic zones. There are only 3 lakes currently known to have the proper conditions.

    • Apathy Tree@lemmy.dbzer0.com
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      5 days ago

      If you live near a deep, CO2 saturated lake, that also has volcanic activity nearby, but the lake itself is normally cold at the bottom, you might be at risk. Maybe. But probably not.

      So no need to worry.