Northern California's Clear Lake has turned green due to algae blooms, visible from space in a NASA satellite photo. The bloom, potentially cyanobacteria, affects the lake's ecosystem.
Cyanobacteria, including blue-green algae, are common in freshwater harmful blooms, impacting humans and animals. Despite its natural role, such blooms can cause issues for Clear Lake.
Clear Lake's algae keeps the ecosystem fertile but inhibits weed growth. These blooms have been present in the lake since the last ice age, posing long-standing ecological challenges.
The largest freshwater lake in California, Clear Lake is a hub for various recreational activities such as swimming, fishing, boating, and water-skiing.
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