To equate natural processes with a short-term targeted extraction and transport of acid-containing ore bodies and to suggest that this will not have an appreciable and damaging effect on water quality is either misleading or naïve.
Acid-mine drainage is a legitimate concern. It is true that the processes of erosion, deposition, uplift, earthquake and glaciation occur naturally and acid-generating material may be exposed from time to time. But this is not the same as specifically…