I'm quite familiar with the dams, I live in Washington myself, and visited them multiple times. I agree that someone will always be upset, but this is generally

I'm quite familiar with the dams, I live in Washington myself, and visited them multiple times. I agree that someone will always be upset, but this is generally true about every change ever. The point is to do changes that are most beneficial to the most, don't carry extremely serious side effects, and are net win over the alternative, which in this case is keeping burning coal. There's still plenty of coal left in Roslyn fields, and if not for the dams, it would probably continue to be extracted today.