The exponential growth of global demand for lithium, driven by the rise of batteries for electric vehicles and energy storage systems, has put the spotlight on the need for energy storage techniques. environmentally friendly lithium extraction that reduce their environmental impact. Competition for the so-called "white gold," vital to the energy transition, affects regions as sensitive as the salt flats of the Atacama Desert and the high Andean wetlands of Argentina, Chile and Bolivia.
New technologies and debates around green mining are facing opportunities and challengesOn the one hand, they promise improvements in efficiency and reduced resource use; on the other, they raise concerns about their effects on ecosystems and the livelihoods of local communities. Lithium has become the epicenter of discussions about environmental justice, ecological preservation, and regional economic progress.
Innovations in direct lithium extraction
For decades, obtaining Lithium has required large areas of land and intensive use of water, mainly through brine evaporation pondsThis traditional method, although efficient in production, has been heavily criticized for its water footprint and the stress it causes in aquifers and wetlands, compromising biodiversity and nature reserves in arid areas.
Recently, companies and research centers have achieved important Technological advances to achieve more environmentally friendly extraction. An example is the direct lithium extraction (DLE), which replaces long evaporation processes with reactors and absorbent materials capable of capture up to 90% of lithium In a few weeks. This evolution allows to reduce water consumption, recirculate up to a 80% of the liquid used and minimize the use of chemicals, also shortening processing times from months to days.
Companies present in northern Argentina are already experimenting with this technology, although they recognize that it requires high initial investments and is still linked to water availability in areas traditionally affected by drought. Furthermore, certification as responsible mining and social acceptance are pending challenges, especially given civil society's demands for transparency and environmental respect.
Environmental and social impacts: the case of Andean ecosystems
Development Lithium mining in high Andean wetlands and salt flats has raised concerns among scientists, environmental organizations, and indigenous peoples. Recent reports highlight that intensive extraction, lacking cumulative impact assessments and adequate planning, has affected springs, lagoons, and grasslands, profoundly altering biodiversity and local water sources. In regions such as the Salar del Hombre Muerto (Argentina), overexploitation has led to a decrease in water content and the degradation of floodplains and wetlands.
Similar warnings have been issued in Chile and Bolivia, where intensive brine pumping and poor natural recovery of aquifers have been blamed for irreversible environmental damage in protected salt flats, including Ramsar sites of international importance. In many cases, the reports highlight that authorization processes for new projects They do not always include adequate consultations with indigenous communities or comprehensive studies on the long-term effects on the territory and its inhabitants.
The affected ecosystems perform key ecological functions as carbon sinks and water regulators, promoting both the climate change mitigation such as the subsistence and culture of local communities. Preserving these ecosystems is key to reconciling the energy transition with environmental justice in the current global context.
Monitoring, independent studies and dialogue with communities
Given the increase in the extraction of Lithium, have gained relevance comprehensive cumulative impact studies and participatory management plans. In areas such as the Salar del Hombre Muerto, governments have commissioned independent assessments to determine the state of ecosystems, anticipate the resilience of aquifers, and define ongoing monitoring strategies. Specific programs cover meteorological, hydrological, biodiversity, cultural heritage, and social participation variables, with the aim of ensuring a informed and cautious decision-making.
Consultations and the integration of experts with community knowledge have made it possible to identify both the benefits and risks of mining activity. These meetings highlighted the need to strengthen the Transparency, community participation and public access to relevant technical information.
From the social sphere, the resistance of indigenous peoples, especially in Atacama and northwestern Argentina, has translated into demands for free, prior, and informed consultation, as well as proposals for ecological restoration and respect for collective rights to water and land. Trust between public, private, and civil society actors requires clear, responsible processes that respect the region's cultural and natural diversity.
The international agenda and human rights at the center of the debate
Organizations such as the Alliance for Andean Wetlands and positions of the Inter-American Court of Human Rights emphasize that the The energy transition must be built on sustainable foundations that respect human rights.The recent Advisory Opinion 32-25 recalls States' obligation to protect strategic ecosystems, ensure community participation, and prevent irreversible damage to nature.
Upcoming international summits, such as the Ramsar Convention on Wetlands, open up opportunities for critical review of extractive policies and the promotion of rational use of natural resources. The challenge is to ensure that technological advancement and economic development do not come at the expense of the biodiversity and social fabric of the affected regions.
The push toward environmentally friendly lithium extraction is emerging as an essential way to balance the need for strategic resources with environmental and social responsibility. Technological innovation, community participation, independent monitoring, and compliance with environmental and human rights regulations are essential to achieving truly sustainable mining.
