Read the EPA study, Mr. Term Limits. 

There is no way this mine could operate without causing massive adverse impacts on the Bristol Bay watershed. You seem very naive when it comes to the motives of mining companies. 

If they promise to scale it down, they will only scale it up afterwards. The ore body is low quality, but huge--a worst case scenario in mining. Low quality ore bodies produce massive piles of acid waste. 

If Pebble gets in, they won't leave until the whole ore body is exploited--a catastrophe for the watershed. The footprint of the mine itself will compromise the productivity and diversity of the salmon-producing streams there. 

And a failure of the massive acid mine-waste holding dams will just ruin the watershed horribly. 

Northern Dynasty seems like just a "pump & dump" stock market racket to me. They're just desperate to get people interested in this nasty idea in the worst place possible, cause they want money, money, money.