New science is pointing to a dark future for Alaska's Bristol Bay salmon if the controversial Pebble copper mine is developed. This video looks at the effects a massive mine development would have on salmon in Bristol Bay's most productive sockeye spawning rivers. What science has uncovered are the effects of minute amounts of copper in salmon streams and how the mine will alter the fragile hydrology of the ecosystem. To help stop the mine visit: savebristolbay.org/takeaction

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