One in three US rivers have changed color since 1984. Here’s what this means – Salon

A new study reveals that roughly one out of three large American rivers have appeared to change color since 1984, with many of the bodies of water seeming to slowly turn yellow and green — and scientists tell Salon that this could mean some very bad things for human health.
Analyzing approximately 15.9 million satellite images taken over a period of more than three decades, researchers at the University of North Carolina at Chapel Hill, the University of Pittsburgh and Colorado State University…

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