Coal mines are notorious sources of acid mine drainage, but the orange sludge that threatens water supplies and wildlife also ...

There are four types of coal: anthracite, bituminous, subbituminous and lignite. Anthracite contains the most energy, and lignite the least. Here in Wyoming, the coal we mine is subbituminous. That ...

This study examined potential health risks for people living near surface coal mine sites in Central Appalachia, including evaluation of relevant literature on air, water, soil, and ecological impacts ...