Definition of"rare earth elements" in English
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rare earth elements
Definitions
Noun
Examples
"The global transition to green energy technologies is heavily reliant on a stable supply of rare earth elements."
The global transition to green energy technologies is heavily reliant on a stable supply of rare earth elements.
"Nations are increasingly focused on securing diverse sources of rare earth elements to mitigate geopolitical risks in their supply chains."
Nations are increasingly focused on securing diverse sources of rare earth elements to mitigate geopolitical risks in their supply chains.
"Research is ongoing to develop more environmentally friendly methods for mining and recycling rare earth elements."
Research is ongoing to develop more environmentally friendly methods for mining and recycling rare earth elements.
Synonyms
Etymology
The term 'rare earth' originated in the late 18th and early 19th centuries. 'Rare' referred to the initial perception that these elements were uncommon, although they are relatively abundant in the Earth's crust but rarely found in concentrated deposits. 'Earth' was an archaic chemical term for insoluble oxides, which is how these elements were first isolated.
Cultural Notes
Rare earth elements hold significant geopolitical importance due to their strategic role in modern high-tech industries and defense. Their extraction and processing are dominated by a few countries, leading to concerns about supply chain vulnerabilities and national security. The environmental impact of their mining, which can involve toxic byproducts and habitat destruction, is also a major point of discussion and a driver for developing sustainable alternatives and recycling methods. The term has evolved from a purely scientific classification to one deeply embedded in discussions about global economics, technology, and environmental policy.