A British National Oceanographic expedition discovered an underwater rare earth deposit in the Atlantic, 500km from the Canary Islands, which is "astonishingly rich" in the substance called Tellurium.

The BBC reports that the underwater tellurium deposit is found in concentrations 50,000 times higher than in deposits on land. The metal is used for the construction of wind turbines, solar panels, and electronic appliances.

The question on whether to mine the 3,000-meter underwater mountain ...