Reasons to be Cheerful explains how "gravity batteries" are giving former mines a second life—while offering an economic and ...

The federal government wants the number of offices that oversee U.S. mine ... coal producing state with just two MSHA facilities. There also are four offices slated to close in Pennsylvania ...

Flanked by coal ... abandoned despite the fact that it was just about the best, certainly the best in terms of real power,” Trump said. The executive order will expedite leases for coal mining ...

(AP) — The U.S. Mine Safety and ... leave the fifth-leading coal producing state with just two MSHA facilities. There also are four offices slated to close in Pennsylvania; two apiece in ...