Good post Yorkie. You could add to this the difficulty which many people have in contemplating the 'post growth' society ie. the idea that we have enough already but what is now needed is a better redistribution of wealth. If the whole World consumed at the rate of the British, Germans, Americans etc. we would need the resources of 4 and a half planets - it is us who are not living in a sustainable way - If this scenario were taken onto the level of economics then the champions of 'austerity' (mentioning no names) would be saying 'live within your means', are we doing this ? The World does not belong exclusively to us though we act as if it did. I forget who it was that said this but it is so true that 'when the last bees have become extinct we will shortly follow behind them` The answer to this cannot only be a technical one ie. electric cars, windmills etc. This is a techno fix solution based on the idea that we can carry on producing and consuming at our present levels and rely on technology to supply the answer.