A giant excavator with sharp points on a rotating piece runs along a wall of solid coal and creates piles of ground-up coal beneath it in a tunnel with a low ceiling and artificial lighting, as people ...

Beijing has approved more than 30 projects to make vital raw materials in an effort to reduce its reliance on imported oil China is stepping up its efforts to use its vast coal reserves instead of oil ...

A large section of the Fifth Estate, that world company of scientists, climbed the Allegheny Mountains to Pittsburgh last week. They knew soft coal, what it was and what could profitably be done with ...