A vast deposit of hard-rock lithium could bring riches to Peru, but it also poses environmental and societal questions. The megaproject would take place in an archeological zone that is also rife with poverty.
The world's biggest mining company has forecast growing demand for its raw materials as 2017 looks set to be the "tipping point" for electric cars, and China's Belt and Road initiative will boost global iron ore demand.
As part of German government coalition talks, the major parties have announced a stop on all arms exports to any countries involved in the war in Yemen. But confusion remains over what the deal means.
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