Rio Tinto walks away from massive Pebble copper-gold project

[caption id="attachment_750445" align="aligncenter" width="600"] Opponents to the project had long argued it could jeopardize the pristine environment of U.S. biggest salmon fishery.[/caption] Global miner Rio Tinto (LON, ASX:RIO) said on Monday it is pulling out of the polemic Pebble Mine...