Most of our modern technology is powered by a few very rare elements. Most of those elements aren't found in the United States. Until we find new solutions, we're at the mercy of other countries.READ»
By most measures, hybrid cars are great--they save everyone's favorite non-renewable resource (gasoline) and they're quiet, too. But while these cars are oil-sippers, they guzzle rare earth metals--a class of 15 elements on the ...READ»
