Peter Whoriskey

Argentina: In the thin air of the salt flats here, nearly 13,000 feet above sea level, the indigenous Atacamas people face a constant struggle. Yet beneath their ancestral land lies a modern-day Silicon Valley treasure: lithium.

The silvery-white metal is essential for the lithium-ion batteries that power smartphones, laptops and electric vehicles, and the popularity of these products has prompted a land rush here. Mining companies have for years been extracting billions of dollars of lithium from the Atacama region in Chile, and now firms are flocking to the neighboring Atacama lands in Argentina to hunt for the mineral known as “white gold.” But the impoverished Atacamas have seen little of the riches. One lithium company, a joint Canadian-Chilean venture named Minera Exar, struck deals with six aboriginal communities for a new mine here. The operation is expected to generate about $250 million a year in sales while each community will receive an annual payment — ranging from $9,000 to about $60,000 — for extensive surface and water rights.