Environmental Impacts of Mining in Ghana

 

By Yakubu Abdul-Fatawu 

Mining—particularly gold extraction—has long been a backbone of Ghana’s economy. Yet this industry comes at a serious environmental and social cost.

Deforestation, Land Degradation & Habitat Loss

Illegal small-scale mining (locally known as galamsey) has led to rampant deforestation, especially in biodiversity hotspots like forest reserves and regions such as Western, Ashanti, and Eastern Ghana . A recent study observed a significant 5.9 % decline in forest cover between 2018 and 2023, with mining areas expanding dramatically . The loss of vegetation erodes soil structure, diminishes biodiversity, and weakens ecosystems’ resilience.

Water Pollution & Ecological Disruption

Mining activities introduce perilous chemicals—mercury, cyanide, and arsenic—into Ghana’s river systems. They also cause siltation and turbidity, visibly turning pristine rivers brown and threatening aquatic life . These pollutants accumulate through food chains, increasing the risk of mercury poisoning in communities dependent on fish and river water . Rivers such as the Pra, Birim, Ankobra, Offin, and others have been heavily impacted, disrupting water supply and ecosystem services .

Soil Degradation & Agricultural Impacts

Topsoil removal and contamination due to mining render farmland infertile. In regions like Tarkwa, Dunkwa-on-offin, Diaso among other areas land have been rendered unusable, displacing farmers and undermining food security . Communities affected by land loss report a sharp decline in farming, leading to increased poverty and food price hikes .

Health, Social & Economic Consequences

Heavy metals such as mercury and cadmium pose severe health risks—neurological damage, kidney disease, and other chronic illnesses—especially among children . Loss of agricultural livelihoods has fuelled socio-economic instability; some displaced individuals turn to illicit mining, perpetuating environmental degradation . The loss of ecosystem services—from clean water to cultural and spiritual value—further contributes to community distress .

Government Responses & Ongoing Challenges

Previous administrations have put several enforce to fight against illegal mining. The current administration in July 2025, launched the GOLDBOD Task Force to halt illegal mining by enforcing arrests, surveillance, and improved oversight . Simultaneously, mining companies are deploying drone and AI-based systems to monitor and deter illegal miners infringing on concessions . Nevertheless, enforcement gaps and systemic corruption remain major hurdles .

Overall, while mining drives economic activity, its environmental costs are profound—threatening forests, water, soil, biodiversity, and human health. Reversing this damage demands strong regulation, environmental rehabilitation (like reforestation), sustainable mining practices, and viable economic alternatives for affected communities.