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Posts Tagged "coal ash"

Expeditions

On eve of EPA hearings, scientists sample lake for coal-ash toxins

Editor’s Note: Expedition Blue Planet, led by Jacques Cousteau’s granddaughter Alexandra Cousteau, is traveling 14,500 miles of road over 138 days to investigate and film some of North America’s most pressing water-use and management stories. Each week expedition members will file a dispatch from the field for Scientific American until the expedition concludes on November [...]

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Observations

How Many More Coal Ash Spills?

dan-river-coal-ash-ponds

What is the largest type of trash produced in the U.S.? It’s not whatever you’re thinking, most likely. It’s coal ash. Burning coal produces more than 100 million metric tons of coal ash per year—the gray or black sooty aftermath of our fossil fuel habit. Even though a good chunk of it is turned into [...]

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Observations

Beyond the Light Switch: What to do about coal ash?

The aftermath of burning a mountain of coal isn’t pretty. It’s not just the ash itself; it’s also the toxic elements that have been purified by fire out of the "fossilized sunshine." Those toxic elements come along for the ride when the coal ash spills, like it did near Kingston, Tenn., on December 22, 2008. [...]

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