The Grand Canyon is full of mercury
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From the ‘Is Nothing Sacred?’ file: Researchers find levels of mercury and selenium exceeding wildlife toxicity thresholds in…
From the ‘Is Nothing Sacred?’ file: Researchers find levels of mercury and selenium exceeding wildlife toxicity thresholds in…
U.S. Geological Survey scientists report the Grand Canyon's food webs are contaminated with dangerously high levels of mercury…
Even one of America's most iconic landmarks is not immune from...
The confluence of Havasu Creek with the Colorado River (river mile 157) is a popular place for boaters to stop and admire the…