The Environmental Cost of Critical Mineral Mining

During my recent travels to Africa, where I spent several months in Southern Africa, I had the opportunity to reflect more deeply on the relationship between natural resources, economic development, and environmental sustainability. As someone born in Zimbabwe who has spent much of my professional career working at the intersection of public health, policy, systems improvement, and community well-being, these questions carry both personal and professional significance. My growing engagement with organizations, government stakeholders, and industry professionals across African markets has further expanded my interest in understanding how resource-rich countries can pursue economic development while protecting the environment and improve the health and well-being of their populations.

Africa holds extraordinary mineral wealth and is becoming increasingly important to the global transition toward cleaner energy, advanced manufacturing, and technological innovation. As governments and industries accelerate efforts to secure critical minerals such as lithium, cobalt, copper, graphite, and rare earth elements, new opportunities are emerging for investment, infrastructure development, and industrial growth.

However, these opportunities are unfolding at a time when many African countries are already experiencing environmental challenges associated with climate change, including drought, flooding, water insecurity, and declining agricultural productivity. As I continue to explore the opportunities within the critical minerals sector, I find myself returning to an important question: Can we truly call the global energy transition sustainable if the communities supplying the minerals needed for this transition are left to bear a disproportionate share of its environmental and health consequences?

When Mineral Development Creates Environmental and Public Health Risks

The environmental consequences of mineral extraction are not simply hypothetical, as recent developments across Africa demonstrate how inadequate safeguards, failures in waste management, and weak regulatory oversight can create significant environmental and public health concerns.

In February 2025, a tailings dam operated by Sino Metals Leach Zambia Limited failed in Zambia's Copperbelt Province, releasing acidic mining residue into waterways connected to the Kafue River. According to the Zambia Environmental Management Agency, the incident contaminated water systems that support economic activities and surrounding communities. The Zambian government subsequently reported serious impacts on aquatic life, water supplies, and agricultural activities, demonstrating how failures in industrial waste management can extend far beyond the boundaries of a mining operation. Although subsequent government interventions improved water quality, the incident raises important questions about the adequacy of environmental monitoring, infrastructure maintenance, and accountability when industrial activities threaten resources essential to community livelihoods.

Similar concerns have emerged in Zimbabwe where the rapid expansion of lithium mining has generated considerable foreign investment while raising questions about environmental protection and community rights. A 2025 Transparency International study documented environmental governance risks within Zimbabwe's lithium sector, including concerns about water contamination, land degradation, limited access to environmental assessment information, and inadequate community participation. Research examining lithium development in Buhera also documented the displacement of 41 families associated with the Sabi Star lithium mine, illustrating how mineral development can disrupt housing, agricultural activities, and established community livelihoods.

These developments are particularly concerning when viewed alongside existing climate-related pressures. Southern Africa has experienced severe drought conditions in recent years, creating challenges for water availability, food production, and household income. Where mining operations increase demand for limited water resources or contribute to contamination, surrounding communities may face additional difficulties maintaining access to safe drinking water and productive agricultural land.

From a public health perspective, the relationship between environmental conditions and population health is significant. Contaminated water sources can increase exposure to harmful substances, while industrial dust and air pollution may contribute to respiratory health concerns. The loss of agricultural land and disruption of livelihoods can also affect food security, household income, and access to essential services, particularly among communities already experiencing socioeconomic disadvantages.

For this reason, environmental protection should not be treated solely as a regulatory requirement. It should be recognized as an essential component of planning and responsible economic development.

Climate Change and the Environmental Cost of Industrial Expansion

The global transition toward renewable energy presents an important opportunity to reduce greenhouse gas emissions and address the long-term consequences of climate change. However, the technologies supporting this transition require substantial quantities of minerals, and their extraction, transportation, and processing involve industrial activities that can generate emissions, consume water, and alter surrounding ecosystems. This creates a challenge for countries seeking to expand their participation in global mineral supply chains while also addressing existing climate vulnerabilities.

Mining and mineral processing can increase demand for water and energy in areas already experiencing environmental pressures. When these activities are not accompanied by appropriate safeguards, they may contribute to the degradation of resources that communities depend upon for agriculture, food production, and daily living.

The long-term consequences of inadequate environmental management are evident in South Africa, where historic gold mining has contributed to acid mine drainage, a process through which water exposed to certain minerals in abandoned mine workings can become acidic and carry dissolved metals into surrounding water systems. South Africa's Department of Water and Sanitation has identified acid mine drainage as a major environmental challenge requiring long-term intervention to protect water resources, particularly within the Witwatersrand mining region. The continued need for government involvement illustrates how environmental liabilities may persist long after mining operations have ended, creating financial and environmental responsibilities that can extend across generations.

These examples are especially relevant as African governments seek to expand local mineral processing and manufacturing capacity. While developing domestic industry can support employment, economic diversification, and greater participation in global value chains, the environmental implications of industrial expansion must be carefully evaluated. Investments in renewable energy infrastructure, more efficient processing technologies, water recycling, and environmental monitoring can help reduce the environmental footprint of mineral production. However, these measures must be integrated into project planning rather than introduced only after environmental damage has occurred.

I believe this is where greater attention must be directed as the global energy transition accelerates. The objective should not simply be to increase access to the minerals needed for cleaner technologies, but to ensure that producing those minerals does not undermine the environmental conditions that climate policies are intended to protect.

The Ethical Responsibility of Governments, Investors, and Manufacturers

The environmental consequences associated with mineral development also raise broader questions about corporate accountability, human rights, and the distribution of economic benefits.

In the Democratic Republic of the Congo, where copper and cobalt resources play an important role in global battery supply chains, investigations have documented serious concerns regarding the displacement of communities associated with industrial mining expansion. A 2023 investigation by Amnesty International and the Congolese organization Initiative pour la Bonne Gouvernance et les Droits Humains examined conditions surrounding industrial copper and cobalt mining near Kolwezi. Researchers documented forced evictions, inadequate consultation, and compensation concerns affecting residents whose homes and agricultural land were displaced to accommodate mining operations.

These findings demonstrate that the consequences of mineral development are not limited to pollution or environmental degradation. They may also affect housing security, access to food, household income, and the social conditions necessary for healthy communities. As someone whose professional background includes addressing health disparities and the social determinants of health, I believe these issues deserve greater consideration in discussions about mineral investment. When families lose access to housing, agricultural land, or other resources that support their livelihoods, the consequences can extend beyond immediate financial losses and contribute to longer-term social and economic vulnerability.

Investors, governments, and international manufacturers all have a role in addressing these challenges. Although financial returns, mineral availability, infrastructure, and market demand are important considerations when evaluating investment opportunities, environmental performance, community relationships, and regulatory compliance should also influence investment decisions. For investors, inadequate environmental management can create financial liabilities, operational disruptions, legal disputes, and reputational risks. For governments, insufficient regulatory oversight can undermine public confidence and place additional financial burdens on public institutions responsible for environmental restoration and healthcare services. Manufacturers that depend on critical minerals also have a responsibility to understand the conditions under which these resources are produced and to promote transparency and accountability throughout their supply chains.

Responsible investment should therefore extend beyond compliance with existing regulations and include meaningful consideration of environmental risks, community health, and the long-term sustainability of the regions where resources are extracted.

Community Participation and the Importance of Environmental Equity

One of the most important considerations in mineral development is whether communities affected by extraction and industrial activity have meaningful opportunities to participate in decisions that influence their environment, health, and economic well-being.

My experience leading large-scale systems improvement initiatives has reinforced the importance of understanding the needs and concerns of populations directly affected by institutional decisions. Policies and development strategies are more likely to respond to community needs when those communities are engaged early, provided with reliable information, and given opportunities to participate in shaping the decisions that affect them. The same principles should apply to mineral development. Communities should have access to information about proposed mining activities, potential environmental and health consequences, planned mitigation measures, and the economic opportunities associated with development. Their participation should extend beyond initial consultation and include mechanisms for raising concerns, monitoring commitments, and seeking appropriate remedies when problems occur.

Environmental equity must also be considered when examining who benefits from mineral development and who experiences its consequences. While mining operations may contribute to employment, infrastructure investment, and national revenue, these benefits do not automatically translate into improved living conditions for communities closest to extraction sites. Where environmental risks are concentrated among populations receiving limited economic benefits, development can reinforce existing inequalities rather than contribute to more equitable outcomes.

For resource-producing countries, opportunities for local processing, workforce development, business participation, and infrastructure investment should be pursued alongside commitments to environmental protection and public health. The goal should be to establish development models that support economic participation while ensuring that communities are not left with environmental liabilities that compromise their health and livelihoods long after individual projects have ended.

Strengthening Responsible Development Through Technology and Global Partnerships

Advancements in technology and access to reliable information present opportunities to strengthen how mineral resources are identified, evaluated, developed, and managed. Environmental monitoring systems, improved processing technologies, water treatment, and more efficient waste management practices can help reduce the environmental consequences associated with mining and industrial production. Greater access to geological, environmental, regulatory, and supply chain information can also support more informed decisions by investors, governments, and manufacturers.

According to the International Energy Agency's Global Critical Minerals Outlook 2025, successfully expanding recycling could reduce the need for new mining activity by approximately 5% to 30% by 2040, depending on the mineral and market conditions. The agency also estimates that recycled energy transition minerals, including lithium, nickel, and cobalt, generally produce substantially lower greenhouse gas emissions than primary materials derived from mining. Although recycling cannot eliminate the need for new mineral production, these findings demonstrate that improving resource efficiency and investing in cleaner technologies can contribute to both supply security and environmental sustainability.

International partnerships can play an important role in supporting these advancements, particularly where resource-producing countries are seeking to strengthen local processing capacity, improve regulatory systems, and introduce more sustainable industrial technologies. However, meaningful partnerships must extend beyond securing access to raw materials. They should also create opportunities for knowledge transfer, technical capacity development, environmental innovation, and greater participation by local industries and communities.

Rethinking What Sustainable Progress Looks Like

My recent travels to Africa and continued engagement with stakeholders across different markets have reinforced my belief that mineral-rich countries have an important opportunity to shape the future of global industrial development. For countries like Zimbabwe, this opportunity extends beyond increasing mineral production and export revenue to developing industries, strengthening local capacity, and establishing international partnerships that contribute to long-term economic prosperity.

However, realizing this potential requires a development approach that recognizes the connection between environmental protection, public health, climate resilience, and economic opportunity. The experiences of communities affected by mining-related pollution, displacement, and long-term environmental degradation demonstrate why these considerations cannot be addressed independently or postponed until after industrial activity has begun.

As global demand for critical minerals continues to grow, I believe governments, investors, manufacturers, and development partners must take greater responsibility for ensuring that economic opportunities do not come at the expense of the environmental resources and living conditions upon which communities depend. The success of the global energy transition should not be measured solely by reductions in greenhouse gas emissions, advances in clean technology, or the economic value of minerals extracted. It should also be measured by the extent to which we protect the environment, safeguard population health, and create sustainable economic opportunities for the communities that make this transition possible.

For Africa, the opportunity is significant, but so is the responsibility to ensure that future mineral development does not repeat the environmental and social failures of the past.

As we continue expanding global critical mineral supply chains, what changes should governments, investors, and manufacturers prioritize to ensure that environmental protection and community health are treated as essential measures of successful development?

References

• Amnesty International. (2023). Powering change or business as usual? Forced evictions at industrial cobalt and copper mines in the Democratic Republic of the Congo.
• International Energy Agency. (2025). Global critical minerals outlook 2025.
• Transparency International Australia. (2025). Zimbabwe's lithium boom and Chinese investment: Navigating opportunity and risk in the energy transition chain.
• University of Queensland, Sustainable Minerals Institute. (2024). Lithium mining in Zimbabwe: A story of loss for one community.
• Zambia Environmental Management Agency. (2025). Notice of a public disclosure meeting concerning the Sino Metals tailings dam failure.
• Zambia Ministry of Mines and Minerals Development. (2026). Government concludes Sino Metals spillage investigations.
• South African Department of Water and Sanitation. Acid mine drainage: Feasibility study for a long-term solution.