China stands as the dominant force in both the extraction and refinement of these minerals. This supremacy has handed Beijing considerable influence, not only in global markets but also in diplomatic matters, such as trade disputes with the United States. Yet the environmental and human costs of this dominance have been immense.
A journey to China’s two major rare earth regions—Bayan Obo in the north and Ganzhou in Jiangxi province in the south—reveals the true price of powering the digital age. In both areas, the landscape bears scars of environmental degradation: artificial lakes filled with radioactive sludge, contaminated water, and poisoned farmland. The consequences have included suspected cancer clusters and developmental issues, though official acknowledgment remains limited.
Attempts to investigate these sites proved difficult. During one visit, local authorities intervened, halting filming, detaining the team, and demanding footage be erased. Despite repeated requests for official comments, no responses were provided. However, new government guidelines suggest some level of effort to improve oversight in this heavily polluting industry. Scientists report that China is trying to improve environmental protections—but the scale of damage, especially in the north, continues to grow.
Machines relentlessly dig for elements like neodymium and dysprosium, both vital for making the powerful magnets used in numerous technologies. In doing so, they remove layer upon layer of soil, releasing dust loaded with heavy metals and radioactive particles. Satellite images over the past few decades clearly illustrate the mine’s relentless expansion, with the site near Bayan Obo doubling in size and generating massive mounds of toxic waste by-products, known as tailings.
Further south in Ganzhou, mining has been especially invasive. On steep hillsides, concrete-lined pits—called leaching ponds—overflow with chemical cocktails. These solutions are pumped underground to separate rare earths from surrounding material. For years, mining activity here went largely unregulated, with over a thousand sites operating in just one county, many of them illegal.
That changed in 2012, when authorities began cutting back on mining licenses. Even so, decades of unregulated excavation left lasting scars. Studies have linked these practices to forest loss, soil erosion, and chemical pollution that has seeped into rivers and farmland. Farmers in the area, like Huang Xiaocong, live with the consequences. His land lies encircled by four rare earth sites. He blames ongoing landslides on reckless mining activity and accuses the local state-owned mining company of illegally seizing property. The company refused to comment.
Taking on such a company is a risky endeavor, particularly in China. Yet Mr. Huang has brought his complaints to the local Natural Resources Bureau. Satellite data backs his claims: within a six-kilometer radius of his home, multiple leaching ponds are visible. During a BBC interview, a group of men—some in uniforms linked to the mining firm—blocked reporters from leaving, resulting in a prolonged standoff. Only after a company representative arrived did they manage to leave.
Professor Julie Klinger, who has studied global rare earth extraction, notes that many communities like those in Bayan Obo and Ganzhou were victims of China’s past approach to industrial development—grow first, clean up later. Although Beijing is now taking steps to improve environmental accountability, the lingering damage cannot be undone easily.
In one of the worst-affected areas near Baotou, close to the Weikuang Dam, villagers were once plagued by deformities and arsenic poisoning from decades of exposure to contaminated water. While residents have since been relocated, the vast tailings pond—11 kilometers in length—remains filled with toxic waste, including radioactive thorium. Scientists warn that these pollutants could seep into the nearby Yellow River, which supplies water to much of northern China.
The global demand for electronics, electric cars, and advanced medical and aerospace technologies continues to rise. Alarmingly, for every tonne of rare earths extracted, around 2,000 tonnes of hazardous waste are produced. China is now attempting to limit its domestic environmental damage by pursuing rare earth projects abroad. Meanwhile, other nations—especially the U.S.—are scrambling to develop their own sources.
Researchers caution that wherever rare earths are mined, unless strict safeguards are in place, environmental and social fallout is inevitable. In Bayan Obo, some residents have adapted to this new economic reality. One farmer, who previously raised horses, now earns a steady income from mining-related jobs—an opportunity he didn't have before. Though the land has been damaged and the water tainted, for some, the tradeoff has brought financial security. As he plants crops in the shadow of the mines, he simply remarks, "You grow your crop, you sell it. That’s it."