What negative impact did gold and silver mining have n the west?

The environmental impact of mining includes erosion, formation of sinkholes, loss of biodiversity, and contamination of soil, groundwater and surface water by chemicals from mining processes. Besides creating environmental damage, the contamination resulting from leakage of chemicals also affect the health of the local population

It can provide a social code to protect each citizen's future economical earnings. and then obviously defending the country from invading countries.