Already battered by increasingly onerous regulations on pollution from power generation, U.S. coal miners are now suffering the impact of cheap natural gas on the industry.
A group of scientists is asking international authorities to temporarily halt the approval of new underwater mining contracts until further environmental controls are put in place.
On April 2, 2015, the BBC ran an investigative report that illustrated rare earth mining's trail of destruction. It raises an important question: How is that such important commodities continue to be mined with such low environmental standards?