Drought increases microbe-laden dust landing in Sierras

Dust from all over the world is landing in the Sierra Nevada mountains carrying microbes that are toxic to both plants and humans. New research shows higher concentrations of the dust are landing at lower elevations, where people are more likely to be hiking.Dust from all over the world is landing in the Sierra Nevada mountains carrying microbes that are toxic to both plants and humans. New research shows higher concentrations of the dust are landing at lower elevations, where people are more likely to be hiking.

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