Burning coal will produces coal ash. It's a bad pollution for the earth environment. It's also cause the greenhouse. So some companies and their representatives found some new ways. But also have some opposite view says it may have negative consequences.
    To prevent it happens. Some companies have their ways like use liner in every new pond or landfill they build to dispose the coal ash. Also  t creating very strict rules for storing and handling coal ash. Recycling coal ash is important to.In judgement