Originally Posted by Saxonian
There is talk of using the water in the flooded abandoned mines in the UK as a heating system

https://www.gov.uk/government/collections/mine-water-heat


If we do this in the abandoned tin mines of Cornwall, we can also extract a useful amount of lithium

https://www.nationalgeographic.co.u...tery-grade-lithium-heres-what-that-means

Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE