South America has become a central battleground in the global push for critical minerals, but the promise of a cleaner future is colliding with uncomfortable realities on the ground. As demand accelerates for materials such as lithium and copper, countries like Brazil, Argentina and Chile are being pulled deeper into a resource-driven model that raises urgent questions about whether the global energy transition is truly sustainable—or simply a rebranded form of extractivism.
From the Lithium Triangle in the Andes to Brazil’s expanding biofuel frontier, the region illustrates a growing contradiction: the world’s green transition depends heavily on minerals extracted from ecosystems and communities already under pressure.
The Lithium Triangle: Global Demand, Local Cost
Stretching across Argentina, Bolivia and Chile, the so-called Lithium Triangle holds more than half of global lithium reserves. This metal is essential for electric vehicle batteries, renewable storage systems and modern electronics, making it a cornerstone of the global decarbonisation agenda.
But behind this strategic importance lies a growing environmental and social strain. In Chile’s Atacama Desert, lithium extraction relies heavily on pumping and evaporating underground brines, consuming vast amounts of water in one of the driest regions on Earth. Similar patterns are emerging in Argentina, where Indigenous communities report water depletion, ecosystem disruption and loss of traditional livelihoods linked to mining expansion. The central tension is clear: lithium is essential for the energy transition, yet its extraction risks undermining the very ecosystems that sustain local populations.
Argentina: Economic Opportunity or Resource Dependency?
In northern Argentina, provinces such as Jujuy and Salta have become major destinations for international lithium investment. The government frames the sector as a path toward economic modernisation and global integration, but local communities describe a more complex reality.
Concerns include:
- Weak consultation processes with Indigenous groups
- Disputes over land rights and territorial use
- Limited transparency in revenue distribution
- Rising environmental pressure on fragile salt-flat ecosystems
Critics argue that even “green” mining continues to follow an extractivist model, where global corporations capture most of the value while local communities bear the environmental cost. This raises a deeper policy question: whether Argentina can build a just energy transition without fundamentally restructuring ownership and governance of its mineral wealth.
Chile: Sustainability Claims Under Pressure
Chile presents itself as a global leader in responsible lithium production, yet evidence from the Atacama Desert tells a more complicated story.
Expanding evaporation ponds, increasing water scarcity, and ecological stress on Indigenous territories have sparked criticism of what observers call “green extractivism”—a model where environmental costs are shifted to local ecosystems in the name of global decarbonisation. The impact is not abstract. Reduced access to water and ecosystem disruption threaten both cultural heritage and economic survival. The contradiction is stark: while Chile’s lithium exports support global clean energy supply chains, they also intensify environmental pressure at home.
Brazil: The Green Transition Debate Beyond Lithium
Although Brazil is not part of the Lithium Triangle, its own energy strategy reflects similar tensions. The country has long promoted biofuels as a renewable alternative, yet large-scale production of ethanol and biodiesel is increasingly linked to:
- Agricultural expansion
- Deforestation pressures
- Rural displacement
At the same time, Brazil’s growing hydrogen and clean energy agenda risks prioritising export-oriented megaprojects over local energy needs. This raises concerns about greenwashing, where fossil-intensive or land-intensive systems are rebranded as sustainable without fully addressing their environmental footprint.
A Transition Built on Unequal Foundations
Across South America, the energy transition is reshaping landscapes—but not always in equitable ways. From copper and lithium mining in the Andes to agricultural expansion in Brazil, the shift toward low-carbon technologies is creating new forms of pressure on land, water and communities.
Indigenous populations, in particular, are increasingly vocal about exclusion from decision-making processes. Many argue that the current model repeats historical patterns of inequality, where resource extraction benefits external markets more than local societies.
At the same time, global mining companies continue to expand supply chains for critical raw materials, often highlighting sustainability commitments. However, on-the-ground assessments frequently reveal gaps between corporate narratives and local realities, particularly in consultation, compensation and environmental protection.
The Risk of “Green Extractivism”
What is emerging across the region is a growing critique of green extractivism—the idea that environmental goals can still be pursued through traditional extractive models without fundamentally changing their social or ecological impacts.
Key structural issues include:
- High water consumption in lithium production
- Weak regulatory enforcement in mining regions
- Limited benefit-sharing with local communities
- Concentration of value in global supply chains
These dynamics suggest that the energy transition, as currently structured, risks shifting environmental and social burdens rather than eliminating them.
Rethinking What the Energy Transition Means
The South American experience highlights a broader global dilemma: decarbonisation is not only a technological challenge, but a political and ethical one.
A truly sustainable transition would require:
- Stronger environmental governance
- Meaningful participation of Indigenous communities
- Diversified economic models beyond raw material exports
- Recognition of territorial rights and ecological limits
Without these elements, the transition risks becoming a relabelled version of old extractive systems, dependent on regions that bear the environmental cost of global consumption.
