> Bringing up bird welfare to oppose wind turbines is bullshit. If people cared about birds or wildlife we wouldn't be in this mess at all. Your comment seems

> Bringing up bird welfare to oppose wind turbines is bullshit. If people cared about birds or wildlife we wouldn't be in this mess at all. Your comment seems to be a blanket opposition to bird welfare in general, not a limited critique of quantity harmed. I do think the distinction remains important, hence why I made my post. > Do they make a lot more noise than giant cruise ships? Luxury yachts? Given that the ships are itinerant and their turbines are much smaller, I do believe the type of noise pollution they generate is qualitatively less harmful. I imagine the scale is something along the lines of: 1. windmills 2. sonar 3. marine vehicle engine and turbine noise Windmills take the top spot for being a constant barrage over a large area. Sonar gets the second for the extreme volume some ships (esp. military) are capable of producing, though there are far fewer of them. Marine vehicles come last. There's a greater danger of animals being hit by fast moving boats (for example, manatees) than discombobulation from engine and turbine noise.