Lithium is a key global resource for the global energy transition thanks to its role in the lightweight, efficient batteries that will power cars and balance power grids, writes Rafael Sagárnaga López. But the booming demand threatens to contaminate one of the world's great wonders, the Salar de Uyuni, 12,000 feet high in the Bolivia's Andes, which holds 70% of the world's lithium reserves.
