Urban impact of rare earth elements | Science
The burgeoning demand for rare earth elements (REEs) has become a focal point in the high-tech sector, particularly in areas such as new energy generation, energy storage, and electronic information technology. As industries pivot towards greener technologies and advanced electronics, the need for these critical raw materials has surged dramatically. Statistical data reveals that global production of rare earth minerals has skyrocketed from 124,000 metric tons in 2015 to an anticipated 390,000 metric tons by 2024, marking a remarkable 214% increase over just a decade. This escalation not only reflects the growing reliance on REEs for modern innovations but also highlights the pressing need for sustainable practices in their extraction and use.
However, the rapid expansion of REE mining and processing has significant environmental implications. The large-scale industrial activities associated with REEs have accelerated their biogeochemical cycling, resulting in substantial enrichment of these elements in various ecosystems, including the atmosphere, water bodies, soil, and even living organisms. This enrichment poses potential health risks, particularly in urban areas where mining and processing activities are concentrated. The increasing presence of REEs in urban environments raises critical questions about their long-term effects on human health and the environment. As governments and industries push for further advancements in technology, the urgent need to address the environmental and health impacts of REE extraction and usage has never been more pressing. Stakeholders must prioritize sustainable practices and regulatory measures to mitigate the risks associated with the burgeoning REE market, ensuring that the benefits of high-tech advancements do not come at the expense of public health and ecological integrity.
The rapid growth of high-tech sectors, such as new energy generation and storage as well as electronic information, has stoked a global demand for rare earth elements (REEs), the critical raw materials for these sectors and others (1). Statistical data indicate that global rare earth mineral production, including mining, smelting, and application, skyrocketed from 124,000 metric tons in 2015 to 390,000 metric tons in 2024, a staggering 214% increase over the past decade (2). Moreover, large-scale mining, smelting, and industrial use of REEs have accelerated their biogeochemical cycling, leading to substantial enrichment in the atmosphere, water, soil, and organisms. Against this backdrop of expanding REE mining, processing, and consumption, the enrichment of these elements in urban environments and their potential health impacts demand urgent attention.
