But for some kids, the most memorable part of Christmas morning might just be the ominous lump of coal sitting in their stocking. What's the story behind this unusual yuletide tradition?

3 min read The Carboniferous period, part of the late Paleozoic era, takes its name from large underground coal deposits that date to it. Formed from prehistoric vegetation, the majority of these ...

Scientists have worried about that possibility, afraid kids could ... how deep the coal ash lies beneath the ground across ...