Renewables' deep-sea mining conundrum
18 April 2017British scientists exploring an underwater mountain in the Atlantic Ocean have discovered a treasure trove of rare minerals.
Their investigation of a seamount more than 500km (300 miles) from the Canary Islands has revealed a crust of "astonishingly rich" rock.
Samples brought back to the surface contain the scarce substance tellurium in concentrations 50,000 times higher than in deposits on land.
more [source: BBC]