No, this is not good news. Mining is one of the most polluting human activities there is. In addition, all those machines used for digging and pulverizing the minerals, they run on petrol.
In fact, the entire value chain from raw mineral to finished product, be it solar panels, wind turbine, or the latest iPhone, is totally dependent on fossil fuels: coal for making steel, petrol for the all the rest: mining, refining, transporting, installing.
This is the hard truth about so called "renewables" - they would not have existed without the use of fossil fuels. Anyone telling you otherwise is simply greenwashing. If we really care about our future a whole different approach is needed.