I recently came across an image of the Strata, a skyscraper in south London with built in wind turbines.
Now wind turbines are gobsmackingly inefficient - we all know that - but the idea that you would make them still less efficient by preventing them from swinging round to face into the wind seems almost to defy belief.
To make things worse, it seems that the noise they generate has led to their being switched off most of the time.
Still, it will stand as a monument to the idiocy of environmentalists.