Extracting gold from ore is a poisonous business. The most common method is cyanide leaching, where cyanide salts in solution are used to suck the gold out from its ore. You get gold, but you also get ...

Even though the Colorado Supreme Court last week rejected Summit County’s ban on cyanide-based gold mining, no one is expecting a rush of mining applications any time soon. “I think the chances are ...

Scientists accidentally discover a new way to isolate gold that is much safer than existing processes, which use toxic cyanide. By Rebecca Boyle Published May 14, 2013 10:30 PM EDT Add Popular Science ...

Getting your Trinity Audio player ready... DENVER- Colorado counties have the authority to ban the use of cyanide in gold mining, the state Court of Appeals ruled Thursday. A three-judge panel upheld ...

Getting your Trinity Audio player ready... LEADVILLE — Millions of tons of waste from decades-old mining operations sit in the hills east of town. The brown and orange piles of abandoned ore rise 30 ...

Gold mines that use cyanide in the extraction process should not receive funding from the European Bank for Reconstruction and Development (EBRD), say NGOs. Cyanide is widely used to help extract pure ...