yr right - Sorry, I'm still stuck on the puzzling question as to why 500 (or 900) tonnes of concrete in a wind turbine base, is a major disaster/hazard/problem?
Ever had a little think about the total tonnage of concrete that is poured into buildings, bridges, or foundations for a hundred other structures? - every day of the week??
Your average multi-storey carpark contains anywhere between 50,000 and 150,000 tonnes of concrete! Ever seen a carpark demolition job? You ought to watch a few more YooToob vids!