Science
River colors are shifting from blue to yellow and green • Earth.com – Earth.com
A third of the rivers in the United States have transformed from blue to yellow and green over the last three decades, according to a new study from UNC Chapel…
A third of the rivers in the United States have transformed from blue to yellow and green over the last three decades, according to a new study from UNC Chapel Hill. While the cause is not entirely clear, the experts believe that the colors represent the presence of pollution, sediment, and algae.
Led by environmental scientist John Gardner, the team analyzed 235,000 satellite images captured from 1984 to 2018 by the NASA and USGS Landsat program. More than half of the rivers examined for the study…
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