Study says Canadian smelter polluting U.S. lake
A Canadian smelter produced most of the lead, zinc and cadmium pollution found in a Washington state lake at the center of a cross-border environmental fight, according to a study released. The U.S.
A Canadian smelter produced most of the lead, zinc and cadmium pollution found in a Washington state lake at the center of a cross-border environmental fight, according to a study released. The U.S.