Coal will continue to provide a major portion of energy requirements in the United States for at least the next several decades. It is imperative that accurate

The story of "three great national epics" enacted along the banks of the Powder river: the epic of grass and the future of the great grazing lands; the story of

In some coalbeds, naturally occurring water pressure holds methane-the main component of natural gas-fixed to coal surfaces and within the coal. In a coalbed me