Tag Archives: artisanal miners

Ecological Impacts of Mining Rivers for Gold

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Mining in river channels provides a living for millions of people across the globe, particularly in the tropics. However, because this mining involves deforestation, excavating, dredging, and other work directly in or next to river channels, ecosystems are intensively degraded. Soils and river sediments excavated during mining are processed to extract the precious mineral of interest, usually gold, then discarded. Often the excess sand, silt, and clay is washed downstream by rivers, muddying river water for as much as 1,000 km downstream of mining sites. 

During the past 20 years, mining in rivers has increased dramatically, particularly during the Global Financial Crisis in 2008–09 when the price of gold increased significantly. Despite the human and ecological importance of mining-related environmental degradation, no global documentation of its environmental footprint exists. For the first time these environmental impacts were quantified through the use of satellite imagery and on-the-ground measurements, documenting more than 400 mining areas in 49 countries, mostly in the tropics. We show that the effects of mining have altered 173 rivers, which collectively represent 5–7% of large river length globally. In the tropical countries with river mining, on average nearly one-quarter of large river length is altered by river mining. 

Abstract Available online The recent rise of mining in rivers is a global crisis (Evan Dethier et al, 2022)

Human and Environmental Costs of Low-Carbon Technologies

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Substantial amounts of raw materials will be required to build new low-carbon energy devices and infrastructure.  Such materials include cobalt, copper, lithium, cadmium, and rare earth elements (REEs)—needed for technologies such as solar photovoltaics, batteries, electric vehicle (EV) motors, wind turbines, fuel cells, and nuclear reactors…  A majority of the world’s cobalt is mined in the Democratic Republic of Congo (DRC), a country struggling to recover from years of armed conflict…Owing to a lack of preventative strategies and measures such as drilling with water and proper exhaust ventilation, many cobalt miners have extremely high levels of toxic metals in their body and are at risk of developing respiratory illness, heart disease, or cancer.

In addition, mining frequently results in severe environmental impacts and community dislocation. Moreover, metal production itself is energy intensive and difficult to decarbonize. Mining for copper,and mining for lithium has been criticized in Chile for depleting local groundwater resources across the Atacama Desert, destroying fragile ecosystems, and converting meadows and lagoons into salt flats. The extraction, crushing, refining, and processing of cadmium can pose risks such as groundwater or food contamination or worker exposure to hazardous chemicals. REE extraction in China has resulted  threatens rural groundwater aquifers as well as rivers and streams.

Although large-scale mining is often economically efficient, it has limited employment potential, only set to worsen with the recent arrival of fully automated mines. Even where there is relative political stability and stricter regulatory regimes in place, there can still be serious environmental failures, as exemplified by the recent global rise in dam failures at settling ponds for mine tailings. The level of distrust of extractive industries has even led to countrywide moratoria on all new mining projects, such as in El Salvador and the Philippines.

Traditional labor-intensive mechanisms of mining that involve less mechanization are called artisanal and small-scale mining (ASM). Although ASM is not immune from poor governance or environmental harm, it provides livelihood potential for at least 40 million people worldwide…. It is also usually more strongly embedded in local and national economies than foreign-owned, large-scale mining, with a greater level of value retained and distributed within the country. Diversifying mineral supply chains to allow for greater coexistence of small- and large-scale operations is needed. Yet, efforts to incorporate artisanal miners into the formal economy have often resulted in a scarcity of permits awarded, exorbitant costs for miners to legalize their operations, and extremely lengthy and bureaucratic processes for registration….There needs to be a focus on policies that recognize ASM’s livelihood potential in areas of extreme poverty. The recent decision of the London Metals Exchange to have a policy of “nondiscrimination” toward ASM is a positive sign in this regard.

A great deal of attention has focused on fostering transparency and accountability of mineral mining by means of voluntary traceability or even “ethical minerals” schemes. International groups, including Amnesty International, the United Nations, and the Organisation for Economic Co-operation and Development, have all called on mining companies to ensure that supply chains are not sourced from mines that involve illegal labor and/or child labor.

Traceability schemes, however, may be impossible to fully enforce in practice and could, in the extreme, merely become an exercise in public relations rather than improved governance and outcomes for miners…. Paramount among these is an acknowledgment that traceability schemes offer a largely technical solution to profoundly political problems and that these political issues cannot be circumvented or ignored if meaningful solutions for workers are to be found. Traceability schemes ultimately will have value if the market and consumers trust their authenticity and there are few potential opportunities for leakage in the system…

Extended producer responsibility (EPR) is a framework that stipulates that producers are responsible for the entire lifespan of a product, including at the end of its usefulness. EPR would, in particular, shift responsibility for collecting the valuable resource streams and materials inside used electronics from users or waste managers to the companies that produce the devices. EPR holds producers responsible for their products at the end of their useful life and encourages durability, extended product lifetimes, and designs that are easy to reuse, repair, or recover materials from. A successful EPR program known as PV Cycle has been in place in Europe for photovoltaics for about a decade and has helped drive a new market in used photovoltaics that has seen 30,000 metric tons of material recycled.

Benjamin K. Sovacool et al., Sustainable minerals and metals for a low-carbon future, Science, Jan. 3, 2020

The Jihadist Mafia: Controlling the Gold of Sahel

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Burkina Faso is struggling to contain a fast-growing jihadist insurgency. Along with Mali and Niger, it has become the main front line against terrorists in the Sahel, a dry strip of land that runs along the edge of the Sahara. This year alone the conflict has killed more than 1,600 people and forced half a million from their homes in Burkina Faso….A worrying new trend is a battle by jihadists and other armed groups to take control of the region’s gold rush.

Although gold has long been mined in the region…it has boomed in recent years with the discovery of shallow deposits that stretch from Sudan to Mauritania. International mining companies have invested as much as $5bn in west African production over the past decade, but the rush has also lured hundreds of thousands of unsophisticated “artisanal” miners. The International Crisis Group (ICG), an NGO, reckons that more than 2m people are involved in small-scale mining in Burkina Faso, Mali and Niger. In total they dig up 40-95 tonnes of gold a year, worth some $1.9bn-4.5bn.

Artisanal Mining’s Claustrophobic Conditions

This rush—in a region where states are already weak and unable to provide security—has sucked in a variety of armed groups and jihadists, including the likes of Ansar Dine and Islamic State in the Greater Sahara…The jihadists probably have direct control of fewer than ten mines…But they have influence over many more. In some areas artisanal miners are forced to pay “taxes” to the jihadists. In others, such as Burkina Faso’s Soum province, the miners hire jihadists to provide security… Other armed groups such as ethnic militias are also in on the bonanza and collect cash to guard mines. International mining firms may also be funding the jihadists by paying ransoms for abducted employees or “protection” money to keep mining, according to a study published by the OECD, a club of mostly rich countries.

For the moment much of Burkina Faso’s artisanal production is sneaked into Togo… Togo does not produce much gold domestically but it sent more than 12 tonnes of gold to Dubai in 2016. Gold is also taken out of the Sahel through major airports in hand luggage. 

The resource curse: How west Africa’s gold rush is funding jihadists, Economist, Nov. 16, 2019

Tin, Tantalum and Tungsten: Congo

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Congo’s tin, tantalum and tungsten are used in electronics around the world. Although some of these minerals come from big industrial copper mines in Katanga, Congo’s south, and a gold mine in South Kivu, there is not yet a single modern mine in North Kivu.

Until now the province’s metal has been dug out almost entirely by hand. Yet Alphamin hopes to show that it can run a modern industrial mine in a part of the world that scares other modern miners away.

Alphamin says that the investment is attractive—even at a time of low commodity prices—because the ore that it plans to extract is richer than that found anywhere else in the world. Behind the company’s camp on the hill are stacks of carefully ordered cylinders of rock drilled out to map the riches beneath the mountain. (Like almost everything else in the camp, the drill rig had to be lifted in by helicopter.) The ore they contain is 4.5% grade. That means that for every 100 tonnes of ore extracted, the firm will be able to sell 3.25 tonnes of tin (not all the tin can be extracted from the rock). Most other mines would be happy to produce 0.7 tonnes…..

If the gamble pays off Alphamin’s investors will make juicy returns. But to do so they may have to convince locals that the project is in their interest. If not, they risk protests and sabotage  .In 2007 some 18,000 people lived at Bisie, working the site with pickaxes and shovels. They produced some 14,000 tonnes of tin that year—or perhaps 5% of world production. To get it to market people carried concentrated ore on their heads through the jungle to an airstrip where small planes could land to carry it out. It was back-breaking work but lucrative for many Congolese. That era began to come to an end in 2011, thanks in part to an American law.

Under the Dodd-Frank act, a law aimed mainly at tightening bank regulation, firms operating in the United States must be able to show where the minerals used in their products came from. The idea was to stop rebels in poor countries from selling gold and diamonds to fund wars. The law all but shut down artisanal mining in much of eastern Congo.

Elsewhere in eastern Congo artisanal mines have gradually reopened thanks to a verification scheme under which the UN and the government check mines and allow certified ones to “tag and bag” minerals. The site at Bisie has, however, never been certified. And although Alphamin will provide some well-paid jobs to locals, as well as pay taxes to the central government, its mechanised operations will never employ anything like the thousands of people who once toiled there with pick and shovel. Alphamin has promised to fund local projects, such as a new school, that are intended to benefit 44 villages.

Excerpts from Mining in the Democratic Republic of Congo: The richest, riskiest tin mine on Earth, Economist, Aug. 27, 2016