“Production at existing sites could negate the benefits of the clean technologies they power.”
The town of Smackover, Arkansas, was founded a hundred years ago when a sawmill operator got lucky: his wildcat oil well yielded a gusher. For a time in the 1920s, the oil field beneath the clay hills and swampy creeks in this stretch of southern Arkansas was the world’s most productive site. Now, boosters say the region will help usher the world into an oil-free future, thanks to the discovery of underground brines that are rich in lithium.
Lithium is one of the most important metals in the transition to renewable power. Lithium-ion batteries are, thanks to their lightweight and high energy density, currently the top choice for storing energy in electric vehicles, and a potential tool for grid storage, too. Global production of the metal tripled throughout the 2010s, and demand is projected to increase as much as 40-fold by mid-century.