One year ago today, Aug. 4, 2014, a tailings dam failed at the Mount Polley mine in British Columbia, sending 6.6 billion gallons of toxins downriver, tainting waters flowing into the Fraser River, one of Canada's most prolific salmon producers. Though the economic, social, and environmental costs of the disaster will not be fully known for a long time, the event hit extremely close to home for my family and neighbors. We felt for those living in the impact zone, and saw our concerns about developing the Pebble deposit come to life.