South America’s Critical Minerals Boom Puts the Energy Transition’s “Green” Promise to the Test

South America has become a focal point in the race for critical minerals needed for the energy transition, but the push for cleaner technologies is colliding with hard realities on the ground. With demand rising for materials such as lithium and copper, countries including Brazil, Argentina and Chile are increasingly tied to extraction models that raise uncomfortable questions about whether decarbonisation can remain sustainable when ecosystems and communities are already under pressure.

The Lithium Triangle: Strategic metal, local costs

Spanning parts of [[PRRS_LINK_3]], Bolivia and [[PRRS_LINK_4]], the so-called [[PRRS_LINK_5]] holds more than half of global lithium reserves. Lithium is central to electric vehicle batteries, renewable storage systems and modern electronics, placing it at the heart of decarbonisation plans worldwide.

Yet extraction methods can be environmentally and socially costly—particularly in arid regions. In Chile’s Atacama Desert, lithium production depends heavily on pumping and evaporating underground brines, consuming large amounts of water in one of the driest places on Earth. In Argentina, Indigenous communities report water depletion, ecosystem disruption and losses to traditional livelihoods as mining expansion grows. The tension is direct: lithium may be essential for clean energy supply chains, but its extraction risks undermining local ecosystems that sustain nearby populations.

Argentina’s dilemma: investment versus dependency

In northern Argentina, provinces such as Jujuy and Salta have emerged as major destinations for international lithium investment. The government presents the sector as a route to economic modernisation and global integration. Local accounts described in the article point to a more complicated outcome.

Concerns raised include weak consultation processes with Indigenous groups, disputes over land rights and territorial use, limited transparency in revenue distribution, and rising environmental pressure on fragile salt-flat ecosystems. Critics argue that even “green” mining can replicate extractivist patterns—capturing most of the value through global corporations while communities bear environmental costs.

The policy question highlighted by these disputes is whether Argentina can pursue a just [[PRRS_LINK_6]] without fundamentally restructuring how mineral wealth is owned and governed.

Chile’s sustainability claims face scrutiny

[[PRRS_LINK_7]] positions itself as a leader in responsible lithium production, but evidence from the Atacama Desert described in the article suggests a more complex picture. Expanding evaporation ponds, increasing water scarcity and ecological stress on Indigenous territories have drawn criticism of what observers call “green extractivism”—a model in which environmental costs are shifted onto local ecosystems in the name of global decarbonisation.

The impact is portrayed as tangible rather than theoretical: reduced access to water and ecosystem disruption threaten cultural heritage and economic survival. While Chilean lithium exports support clean energy supply chains abroad, they also intensify environmental pressure within its own borders.

Brazil broadens the debate beyond lithium

Although [[PRRS_LINK_8]]is not part of the Lithium Triangle, Brazil’s broader energy strategy reflects similar tensions discussed in the article. The country has promoted biofuels as a renewable alternative for years; however, large-scale ethanol and biodiesel production is increasingly linked to agricultural expansion alongside deforestation pressures and rural displacement.

At the same time, Brazil’s hydrogen and clean energy agenda could prioritise export-oriented megaprojects over local energy needs. That dynamic raises concerns about greenwashing—where systems with significant land or fossil-related footprints are rebranded as sustainable without fully addressing their environmental impact.

A transition built on unequal foundations

Across South America—from [[PRRS_LINK_9]] and [[PRRS_LINK_10]] in the Andes to agricultural expansion in Brazil—the shift toward low-carbon technologies is reshaping landscapes without necessarily doing so equitably. Indigenous populations are described as increasingly vocal about exclusion from decision-making processes, with many arguing that current models repeat historical patterns of inequality by benefiting external markets more than local societies.

The article also notes that global mining companies continue expanding supply chains for [[PRRS_LINK_11]], often accompanied by sustainability commitments. But on-the-ground assessments frequently reveal gaps between corporate narratives and local realities—especially around consultation practices, compensation arrangements and environmental protections.

The rise of “green extractivism”

A central critique emerging across the region is “green extractivism”: pursuing environmental goals through traditional extractive approaches without fundamentally changing their social or ecological effects. Structural issues cited include high water consumption in lithium production, weak regulatory enforcement in mining regions, limited benefit-sharing with local communities, and concentration of value within global supply chains.

Taken together, these dynamics suggest that—under current arrangements—the energy transition may shift [[PRRS_LINK_12]] rather than eliminating them.

Rethinking what sustainability requires

The South American experience underscores a broader dilemma: [[PRRS_LINK_13]] is not only technological but also political and ethical. The article argues that a truly sustainable transition would require stronger environmental governance; meaningful participation of Indigenous communities; diversified economic models beyond raw material exports; and recognition of territorial rights alongside ecological limits.

Without these elements, it warns that decarbonisation risks becoming a relabelled version of older extractive systems—dependent on regions that bear much of the environmental cost of global consumption.