This Lake Looks Calm But Holds Dark Secrets
A limnic eruption, or lake overturn, is a super rare natural disaster where a lake suddenly releases a huge bubble of dissolved carbon dioxide (CO2) from its depths. This gas cloud can suffocate wildlife, livestock, and even people nearby. It happens when volcanic activity or a landslide disturbs the deep, CO2-rich water, causing it to rapidly rise and release the gas. Recognizing an impending limnic eruption can be tricky, but signs might include unusual lake bubbling, dead fish, or a sudden change in the lake's color. And if you see it, you'd better stay away from it.
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The skinny
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