Heavy metals naturally occur in the Earth's crust, but human activities can increase their concentration in the environment, including domestic sewage and waste disposal, fumes from vehicle exhausts, ...

Dissident artist Ai Weiwei has found a new way to tweak the sensibilities of Chinese authorities: he has announced plans to release a heavy metal album. , said he would "express his opinion" through ...

Germanium and gallium are two rare industrial metals now closely tied with the global fight for leadership in green tech and semiconductors, China-U.S. relations, industrial policy, and pricing. At ...