Billions in Illegal Gold Continue to Flow from the Amazon
Illegal gold mining in Brazil's Amazon rainforest persists at scale, with billions of dollars in gold extracted despite intensified government efforts under President Luiz Inácio Lula da Silva. A new analysis by Greenpeace reveals that miners have adapted sophisticated methods to evade enforcement, including the use of "ghost permits" that launder illicit gold into legitimate supply chains.
The findings, detailed in reporting from May 29, 2026, underscore how high gold prices driven by global instability have fueled the activity even as authorities seize record amounts of illegal gold.
Background on the Amazon Gold Rush
Wildcat mining, known locally as garimpo, has long plagued the Amazon. During the administration of former President Jair Bolsonaro, policies encouraged expansion, leading to a sharp rise in illegal operations on Indigenous territories and protected areas. When Lula took office in 2023, he pledged to reverse course and eliminate illegal gold mining from these sensitive zones, citing both environmental destruction and threats to Indigenous communities.
Enforcement operations have included helicopter raids, destruction of dredges, and increased monitoring by federal agencies. In 2025, Brazil's Federal Police seized a record 447 kilograms of illegally mined gold. Yet these measures have not halted the trade.
Greenpeace Report Exposes Adaptation Tactics
Greenpeace Brazil's investigation, building on its earlier "Toxic Gold" report, analyzed satellite data and permit records across the Amazon. The organization examined 187 areas with gold mining permits issued by the national mining agency ANM near Indigenous lands and protected zones. Of these, 98 showed no visible signs of actual mining activity, suggesting they serve as fronts for laundering gold from illegal sites.
Miners reportedly use permits from inactive or nonexistent operations to certify the origin of gold extracted from protected forests and riverbeds. This "ghost permit" system allows billions in value to enter global markets with falsified documentation.
The report estimates that between 2018 and March 2026, such mechanisms legitimized approximately 26.8 tonnes of gold valued at around $3.88 billion, much of it suspected to originate from Indigenous territories.
Shifting Patterns Across Indigenous Territories
While overall enforcement has reduced activity in some areas, mining has simply relocated. Greenpeace monitoring from 2023 to 2024 showed declines in the Yanomami territory (down 7 percent), Munduruku lands (down 57 percent), and Kayapó territory (down 31 percent). However, activity surged in the Sararé region, increasing 93 percent.
Over the two-year period, illegal mining destroyed 4,219 hectares of rainforest across four key Indigenous territories—an area roughly equivalent to half the size of Manhattan. This deforestation compounds mercury pollution in rivers, biodiversity loss, and social disruption for local communities.
Photo by BoliviaInteligente on Unsplash
Environmental and Health Consequences
Illegal garimpo operations rely heavily on mercury to separate gold from sediment, releasing toxic runoff into waterways that Indigenous peoples depend on for drinking, fishing, and agriculture. The contamination affects fish stocks and human health across vast river systems.
Deforestation from mining also fragments habitats and accelerates climate impacts in one of the world's most critical carbon sinks. Indigenous leaders, including Kayapó chiefs, have publicly criticized the pace of government response, warning that criminal networks sustain the operations.
Government Response and Enforcement Challenges
The Lula administration has prioritized the issue through the Ministry of Indigenous Peoples and coordinated operations involving the Federal Police, army, and environmental agencies. Dredges have been destroyed on rivers like the Madeira, and monitoring has expanded.
However, the cat-and-mouse dynamic persists. Miners quickly return to cleared sites or move to new locations once enforcement teams depart. High global gold prices provide strong economic incentive for continued operations, often backed by organized crime groups that control logistics and export routes.
Indigenous Voices and Community Impacts
Leaders from affected territories describe ongoing threats to their lands, water, and way of life. Communities report increased violence, health crises from mercury exposure, and pressure on traditional governance structures.
Greenpeace and Indigenous representatives argue that stronger traceability requirements for gold exports, coupled with sustained on-the-ground presence, are needed to break the cycle.
Economic Context and Global Supply Chains
Record gold prices amid geopolitical tensions have made illegal extraction highly profitable. Much of the laundered gold enters international markets, raising questions about due diligence by refiners and buyers worldwide.
Brazilian authorities have stepped up seizures, but the Greenpeace analysis indicates that paper trails often obscure true origins, allowing illicit gold to blend seamlessly with legal production.
Future Outlook and Potential Solutions
Experts and activists call for enhanced satellite monitoring, stricter permitting reforms at the ANM, and international cooperation on gold traceability. Some propose blockchain-based certification systems or mandatory origin audits for exports.
The Lula government continues to frame the fight against illegal mining as essential for protecting the Amazon and Indigenous rights, while acknowledging the adaptive tactics of criminal networks.
Without addressing the economic drivers and closing loopholes like ghost permits, the cycle of extraction, enforcement, and relocation is likely to continue.
Broader Implications for the Amazon
The persistence of illegal gold mining highlights tensions between economic pressures, environmental protection, and Indigenous sovereignty in Brazil. As global demand for minerals grows, similar challenges may arise with other resources.
Stakeholders emphasize that lasting solutions require coordinated action across government, civil society, and international partners to ensure the Amazon's protection while supporting sustainable livelihoods for local communities.