Miners increase green energy use to power their pits

Major mining companies, including some of the world's biggest suppliers of fossil fuel, are seeking to use more renewable energy themselves as they strive to drive down costs and curb emissions. Glencore, the world's biggest shipper of seaborne coal, said in Tuesday's 2017 sustainability report that it gets 19% of its energy from renewable sources, up a percentage point from last year's report.