What are these strange green swirls in the water? This video shows the explosive growth of a harmful algal bloom in Pyramid Lake, Nevada spanning from August 28 to November 6, 2024. Algae blooms form when warm temperatures meet nutrient-rich water and abundant sunlight. Under these conditions, toxic cyanobacteria multiply rapidly, releasing liver-damaging toxins that threaten public health. Satellite data can act as an early warning system, monitoring water quality changes from space so communit