Incredible photos show North America's oldest lake turned bright GREEN - sparking health concerns

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Incredible photos show North America's oldest lake turned bright GREEN - sparking health concerns

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North America's oldest lake has turned green this month, sparking health concerns among officials. California authorities issued a health alert Friday after the 500,000-year-old Clear Lake became infested with harmful blue-green algae. The algae can release toxins, like microcystin, which irritate the skin and can cause kidney and liver damage if ingested. And while the bloom is naturally occurring, it has become worst in recent years due to mining and sewage runoff.
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