Cleanup continues in US after coal ash spill

In 2008, billions of gallons of toxic sludge were strewn across East Tennessee after a coal ash dump ruptured.

    Four years ago, the most serious US environmental disaster of its kind displaced hundreds of residents.

    A giant wave of coal-ash sludge spilled from a waste containment area and caused extensive environmental damage.

    Al Jazeera's Tom Ackerman visits the scene in Kingston, Tennessee, where the clean-up operation is still in progress.

    SOURCE: Al Jazeera


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