My point is that whenever anyone says "we need to diversify our economy from financial services" (a point on which I wholeheartedly agree) the answer is always "yeah, we should get into green technology". It's presented as some obvious truth which will rebalance the economy and make us all affluent.
However, when questioned, these people are never able to focus on the specifics of
- Why the UK would have a competitive advantage in "green technologies"
- Exactly which "green technologies" we should be doing?
In my opinion, significant advances in fuel efficiency and waste reduction (which is what we're largely talking about) are likely to be tagged onto the existing operations of companies already operating in these areas, and if you take a look, very few of them are British. Yes, we might come up with a few niche ideas but we're not going to become global leaders in the production of lightweight metals, wind turbines etc.