This is to think about, when you consider the impact of the proposed Cline Mine, in British Columbia few miles north of the border from Montana. You don’t have to go to Canada to find the Canadian mining companies polluting and damaging.
Mercury vapor evaporates from the 30-some odd big gold pit mines in northern Nevada. The mercury combines with other elements and enters the food chain as weather deposits it over southern Idaho and Utah. 
Part of Newmont’s Carlin Mine, about 15 miles north of Carlin, Nevada
Photo © by Ralph Maughan. May 2006
A small portion of the titanic Barrick Goldstrike Mine, about 20 miles north of Carlin, Nevada. Photo © Ralph Maughan. May 2006

