The waters of Lago d’Averno, a volcanic crater lake in Southern Italy, have transformed since early March to become a murky blood-red due to an overgrowth of algae. The European Space Agency’s Sentinel-2 satellite and local photographers have captured the lake’s eerie new vibe.
Earth Science
Picturesque Italian Lake Suddenly Turns Blood Red
Lago d'Averno has transformed in just month. Scientists say an algal bloom is to blame.
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