It’s been a long time since I looked into this in any detail. It was my impression that the impact was minimal, but I absolutely agree that fish runs, rivers and ancient ecosystems need to be preserved. If we can extract energy while preserving these resources, we need to do it and get out of the grip of our enemies - I wish I had more time to study the issue.
Living out west, we’re pretty short of fish runs, impacted, among other things by hydroelectric dams built without fish passage built in and severe overfishing in early days, then the Russian fish factory ships raping our Alaskan fishery.
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 Scott, Portland, OR '85 V-20 I/O, Merc 170
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