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The US, aiming for ambitious EV targets, is scrambling to secure a stable domestic supply. However, traditional lithium mining raises serious environmental concerns, potentially jeopardizing the very clean future EVs promise.
One major concern lies in the Atacama salt flat of Chile, a source of a significant portion of the world's lithium. Extracting lithium here involves pumping brine from underground.
 The leftover concentrated saltwater solution disrupts fragile ecosystems. "The environmental fallout is clear," states Francis Mandoca, head of the environmental unit of Chile's Atacama Indigenous Council. He highlights the potential extinction of unique brine shrimp and flamingo species crucial to the region's food chain.
Water scarcity is another major issue. Lithium extraction can use vast quantities of freshwater in arid regions like the Atacama. This threatens not only the local ecosystem but also the livelihoods of communities who rely on the limited water resources.
The US government acknowledges these concerns. "We understand the environmental and social impacts of lithium mining," says a spokesperson for the Department of Interior. The department is currently reviewing a proposed lithium mine in Nevada, emphasizing strict environmental regulations and community engagement.
The road ahead demands a delicate balance. While the US urgently needs lithium for its clean energy goals, it cannot afford environmental devastation. Technological advancements like Direct Lithium Extraction (DLE) offer hope. DLE uses solvents to extract lithium with minimal water usage. "DLE has the potential to be a game-changer," says Dr. Sarah Turner of the National Renewable Energy Laboratory.
The future of clean energy hinges on responsible mining practices and technological innovation. Can the US secure a sustainable lithium supply and safeguard the environment at the same time? 

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