Coal is obtained by the process of mining. This process produces acid mine drainage that can seep into watercourses and aquifers, with negative consequences on ecological and human health. Also, if the underground mine tunnels collapse, they cause the land above to subside. This can disrupt the flow of streams and rivers by interfering with natural drainage.
On the other hand, the soil after the creation of a mine is very different from the soil before, being less fertile, which affects not only the flora but also the fauna and the overall biodiverisy of the place, being able to cause even the extinction of some species in that particular place.