Well, Stu, generally I agree with everything you say, but I disagree vehemently on this. I may be biased, but I live in a sparsely-populated county that probably contributes negligibly to global warming in the overall scheme of things. Yet the whole place is plastered with a rash of these ugly wind turbines, and for what? For farmers to sit on their arses getting £40000 per annum per turbine. For us all to feel better because we're using green energy, instead of less energy. So that badly-designed commercial buildings in our cities can keep their air-conditioning on all the time. They are ugly and they are inefficient. They do not work when the wind isn't blowing and they frequently have to be turned off for fear of overloading the grid at other times. It's the technology of my 1950s kiddies' bike dynamo. In a hundred years' time, if there's anyone still here (and if there is anyone left they'll be using nuclear power), they'll be looking back at old photos of these lumbering idiocies and laughing their heads off.