Green energy increases the need for mining and metals production RDN REPORTS rdnnews@gmail.com Clean energy may mean less mining for coal, but it also means opening or expanding mines to unearth minerals such as cobalt for use in alloys and batteries, tellurium for solar cells and semiconductors, and germanium for transistors in electronic devices. That’s according to Dr. Michael Moats, professor and interim chair of materials science and engineering at Missouri University of Science and Technology, who says reducing carbon emissions from energy systems in the United States will increase the need for metal production by two to six times per kilowatt of energy production.