There are more than 80,000 abandoned mines around Australia.
The vast bulk of these sites have been left unrehabilitated and are sitting idle. This is also the case in the US, where there are an estimated 500,000 abandoned mines, and Canada, where there are at least 10,000.
A Wollongong-based tech company has developed a method for utilising these unused sites to produce green energy to assist with the transition to …
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