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What Is Coal Ash and Why Is It Dangerous?

Sep 22, 2018 - The New York Times

The phrase ''coal ash'' made headlines this week after a dam on a lake at the site of a power plant in Wilmington, N.C., was breached, allowing the hazardous ash into a river that supplies drinking water to much of the southeastern part of the state.

The plant that was shut down, owned by Duke Energy, had been a growing concern since last week after heavy rains associated with Hurricane Florence caused a coal ash landfill at the site to erode, spilling ash onto a roadway.

What is ...