Are lithium mines bad for the environment?
Lithium mines do real damage, like all mines, but the damage depends on how the lithium is mined. Brine ponds strain desert water, hard-rock mines burn carbon and leave waste, and clay mines need acid and land. Here is what each one does, what it looks like, and how it compares.
Lithium mining has real environmental costs, and they depend on the method: brine operations in South America and Nevada use scarce desert water; hard-rock mines in Australia and elsewhere emit more carbon and leave pits, waste rock and tailings; new clay mines need sulfuric acid and large areas. Over its life, an electric car still has a lower carbon footprint than a petrol car, battery included (IEA).
Lithium mining's environmental impact, method by method
Pick a method to see how it works, what it does to land, water and air, and what it looks like from space.
Brine: pumped and evaporated
Salty groundwater under salt flats in Chile, Argentina, China and Nevada is pumped into shallow ponds and left in the sun for a year or more, until the lithium is concentrated enough to process into lithium carbonate.
- Main concern: water. The brine itself is water taken from closed desert basins, and plants also use fresh water. Communities and scientists in the Atacama worry about falling water tables and the lagoons and flamingo habitat that depend on them.
- Lower carbon. Sun does most of the work, so brine lithium has a lower carbon footprint than lithium from rock (IEA).
- Land: large pond fields, but little digging and no waste rock.
Hard rock: a pit and a plant
Spodumene pegmatite is mined in open pits (Australia, Zimbabwe, Brazil, Canada, North Carolina), crushed and concentrated, then usually shipped to China to be roasted and refined into battery chemicals.
- Main concern: carbon and waste. Mining and the high-temperature roasting burn fuel and coal-fired power, so the route emits several times more CO₂ per tonne than brine (IEA). Pits leave waste rock and tailings like any metal mine.
- Water: less than brine per tonne, and mostly recycled through the plant.
- Land: a pit, dumps and a tailings dam, rehabilitated at closure under the mine permit.
Clay: a new kind of mine
Lithium-rich claystones in old volcanic calderas, such as Thacker Pass in Nevada, are dug in shallow open pits and leached with sulfuric acid made on site from sulfur.
- Main concerns: groundwater, the large volume of leached clay to store, sulfur trucked in, and the land itself: Thacker Pass is sagebrush habitat and a place of deep significance to local Paiute and Shoshone people, who challenged the permit in court.
- Shorter supply chain: lithium carbonate is made at the mine, not shipped abroad to refine.
How the three methods compare
| Impact | Brine ponds | Hard rock | Clay |
|---|---|---|---|
| Water | High: brine and fresh water from closed desert basins | Moderate, largely recycled | Moderate; groundwater protection is a permit issue |
| Carbon | Lowest: the sun does the evaporating | Highest: mining, plus roasting and refining, often on coal power | In between; acid made on site also yields steam power |
| Waste | Salt residues from the ponds | Waste rock and tailings dams | Large volumes of leached clay to store |
| Land | Large pond fields on salt flats | Pit, dumps and plant | Shallow pits over a wide area |
| Main places | Chile, Argentina, China, Nevada | Australia, Zimbabwe, Brazil, North Carolina | Nevada, Mexico |
A qualitative summary of the IEA's assessment and the operations' published permits; per-tonne figures vary widely between studies and sites.
People and places
The hardest conflicts are about who decides. In the Atacama, Indigenous Atacameño (Lickanantay) communities have pressed for a say over water and a share of lithium revenue; Chile's 2023 National Lithium Strategy brought the state company Codelco into the Salar de Atacama with SQM and promised more benefit-sharing and protected salt flats. In Nevada, tribes opposed Thacker Pass as a sacred site, and Rhyolite Ridge was redesigned around an endangered wildflower. In Zimbabwe, the lithium rush brought artisanal digging and resettlement disputes. None of this is unique to lithium, but it is why where lithium comes from matters as much as how much.
Lithium against oil: the lifecycle view
A battery's lithium is mined once, works for years and can be recovered at the end; petrol is burned. The IEA's lifecycle analysis finds that a battery electric car's emissions, including making the battery, are lower than a petrol car's over its life, and that the advantage grows as electricity gets cleaner. Mining's local impacts still need managing: lower lifetime carbon does not make a badly run mine acceptable.
What makes lithium mining cleaner
- Direct lithium extraction (DLE): pulling lithium from brine with sorbents or membranes and reinjecting the water, instead of evaporating it. Several plants in Argentina, China and the US are testing it at scale.
- Refining near the mine on clean power, instead of shipping concentrate to coal-powered refineries.
- Recycling: as the first wave of electric car batteries retires, recovered lithium cuts the need for new mines (see critical minerals recycling).
- Standards: independent audits such as IRMA's, and battery passports that trace where the lithium came from.
To see which countries mine lithium and how much, start at where lithium is mined or the lithium story.
Questions
Is lithium mining bad for the environment?
It has costs that need managing: water use at brine operations, carbon emissions and mine waste at hard-rock mines, and land and chemical use at clay projects. How bad depends on the method, the place and the regulation. It is also mining for a product, the battery, that helps cut oil use over its life.
How much water does lithium mining use?
It depends on the method. Brine operations evaporate large volumes of groundwater pumped from closed desert basins, which is why water is the main concern in Chile and Argentina. Hard-rock mines use less water per tonne of lithium and recycle much of it through the plant. Published per-tonne figures vary widely with the deposit and what is counted.
What do lithium mines look like?
Two very different things. Brine operations are fields of shallow, brightly coloured evaporation ponds on salt flats, such as the Salar de Atacama. Hard-rock mines are open pits with waste dumps and a processing plant, such as Greenbushes in Western Australia. The satellite views on this page show both.
Is lithium mining worse than oil drilling?
They are hard to compare directly. A battery's lithium is mined once and can be recycled, while oil is burned. Over a car's life, the IEA finds battery electric cars emit less than petrol cars even after counting battery production, and the gap grows as power grids get cleaner.
Can lithium be recycled?
Yes, but very little is today because most lithium is still in batteries that are in use. The EU Batteries Regulation requires recyclers to recover 50% of the lithium in waste batteries by the end of 2027 and 80% by 2031.
Sources
- IEA: The Role of Critical Minerals in Clean Energy Transitions (environmental and social chapter)
- IEA: Global EV Outlook, lifecycle emissions of electric and conventional cars
- USGS Mineral Commodity Summaries: lithium
- Government of Chile: National Lithium Strategy (2023)
- EU Batteries Regulation (EU) 2023/1542
- US Fish and Wildlife Service: Tiehm's buckwheat listed as endangered (2022)
Checked against the sources above on 24 October 2026.
Figures are as each source publishes them. Company output is shown as the mines report it; nothing here rates a company. Not investment advice.
Keep exploring
Where the battery metals come from
The world runs on rockThe BatteryInside a lithium-ion cell
The world runs on rockThe MapEvery story on one globe
All mining storiesThe world runs on rockAll mineralsMining by country
Pictures: Salar de Atacama, Chile, NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team (Public domain (NASA media, no copyright)); South Africa: a crowd of people gathered outside The Goldfields offices in Johannesburg. 1896., Unknown (Wellcome Collection) (Public Domain Mark 1.0).