Underground mining and strip mining are very different in the possibilities to recover.
Both underground mining and strip mining will devastate natural and urban areas in Germany for centuries. For the former black coal and iron mining areas they basically have no solution except to keep the pumps running indefinitely as the flooded underground mines would collapse, causing sinkholes and eating the houses on top. For the strip mining, these will be scars on the earth until geology has taken care of it in a few million years.
Underground mining and strip mining are very different in the possibilities to recover.
Both underground mining and strip mining will devastate natural and urban areas in Germany for centuries. For the former black coal and iron mining areas they basically have no solution except to keep the pumps running indefinitely as the flooded underground mines would collapse, causing sinkholes and eating the houses on top. For the strip mining, these will be scars on the earth until geology has taken care of it in a few million years.