The Lithium Triangle's Water War: How the Race for Clean Energy Is Draining South America's Salt Flats

As the world pivots to electric vehicles, lithium demand is soaring—but in the arid highlands of Argentina, Bolivia, and Chile, extraction is depleting precious water and threatening indigenous communities.

By the Jester Desk · September 7, 2026

In the Salar de Atacama, a white expanse of salt in northern Chile, the world's thirst for clean energy is measured in liters. For each ton of lithium carbonate extracted, miners pump some 2 million liters of brine from beneath the crust, then let the water evaporate under the desert sun. The process is simple, cheap, and staggeringly water-hungry—in one of the driest places on Earth. And as electric vehicle sales surge, the pressure is mounting on the Lithium Triangle, a region spanning Chile, Argentina, and Bolivia that holds roughly 50 to 68 percent of the world's identified lithium reserves, according to estimates cited by the FIDH and Global Campus of Human Rights.^[8][7]

A Thirsty Process in a Parched Land

The dominant extraction method in the triangle is brine evaporation: drill into a salt flat, pump out the mineral-rich brine, and spread it into large ponds to dry over months. But the water lost is not just brine—it is freshwater that moves in to replace it. According to the Interamerican Association for Environmental Defense (AIDA), continuous large-scale brine extraction alters the natural balance of groundwater, causing freshwater from nearby aquifers to flow in and become salinized. The numbers are stark: producing a single ton of lithium can consume 150 cubic meters of freshwater, 350 cubic meters of brine, and evaporate anywhere from 100 to 1,000 cubic meters of water, AIDA reports.^[5]

The impacts are already visible. In Chile's Salar de Atacama, mining companies have been accused of depleting up to 65 percent of vital water supplies in the region, according to reports cited by the World Economic Forum. The drying up of wetlands has been documented, and a study in the journal Proceedings of the Royal Society found that two flamingo species in Chile are threatened by lithium mining, as mining-technology.com notes. The loss of wetlands also releases stored carbon, adding to the climate burden the mining is meant to reduce, warns Wetlands International.^[16][4][11]

Producing a single ton of lithium can consume 150 cubic meters of freshwater, 350 cubic meters of brine, and evaporate anywhere from 100 to 1,000 cubic meters of water.

Communities Left High and Dry

For the indigenous peoples of the high Andes, water is not just a resource—it is the basis of their livelihoods, customs, and worldview, AIDA explains. In Argentina, the Atacama people have seen lithium stockpiles beneath their ancestral lands attract mining companies for years, according to the Harvard International Review. In Chile, indigenous communities in the Atacama desert report that the ponds they once used have been contaminated with harmful chemicals and are now unusable, mining-technology.com adds.^[5][3][4]

The human rights dimension is stark. Despite obligations under International Labour Organisation Convention No. 169 and other instruments, projects in the high Andean salt flats have not been reviewed with communities to obtain their consent, according to a study by the International Federation for Human Rights (FIDH). Communities have neither shared in the benefits nor been compensated for ecosystem damage, the study found. In Bolivia, indigenous workers have seen few jobs from lithium mining, and protests in Potosí have demanded higher royalties and greater revenue allocation, the Harvard International Review reports.^[8][3]

Governance Gaps and Legal Loopholes

The three countries have taken different paths, but all have struggled to regulate the boom. In Chile, the legal classification of brines as mining resources—rather than water—has been criticized as a loophole that allows extraction to bypass water law, notes a Frontiers in Ecology and Evolution article. In April 2023, Chile announced plans to nationalize its lithium industry, affecting the two current operators, SQM and Albemarle, whose licenses run until 2030 and 2043, respectively, according to Wikipedia. In Bolivia, the government rescinded a joint venture with ACI Systems Alemania in 2019, reflecting a history of wary foreign exploitation, the Harvard International Review reports. Argentina, meanwhile, has seen lithium projects proceed with limited oversight, and the FIDH study warns of escalating violations as projects develop rapidly without sufficient regulatory frameworks.^{[14][10][3][8]}

Alternatives Exist, but Barriers Remain

Not all lithium extraction is equally destructive. Direct lithium extraction (DLE) technologies—which filter lithium from brine without large evaporation ponds—offer a potential path forward, but they remain costly and unproven at commercial scale, and there is considerable scientific uncertainty about their environmental impacts, as the Climate and Community Institute notes. The EU has proposed a Critical Raw Materials Act that commits to minimizing adverse impacts from extraction, but Wetlands International argues it should also promote supply chains free from wetland degradation. The economic barriers are steep: lithium prices have soared tenfold in two decades, from $1,590 per ton in 2002 to $16,250 in 2021, creating incentives to mine more, even as communities resist.^[6][11][7]

The Hidden Cost of Going Green

The demand for lithium is not slowing. The International Energy Agency estimates demand could increase 43-fold by 2040, driven by electric vehicle uptake in the EU, China, and the US. But the rush to secure minerals for the green transition is putting a worsening strain on indigenous communities and nature, warns the FIDH. The lithium triangle has become emblematic of the risks posed by policies that fail to center frontline communities' voices and guarantee corporate accountability, the study concludes.^[7][8]

The challenge is not whether to extract lithium—it is how. As the Andean Summit Declaration from indigenous leaders states, communities have the absolute power to decide on activities affecting their lands and resources. Until governments and companies honor that principle, the clean energy revolution will carry a bitter aftertaste: a green battery powered by drained wetlands and broken promises.^[9]

Reported with AI assistance using internet sources.