I generally like to think that I have something to add to what another site says or shows. In this case, the best I can do is to link you directly to an essay on the Scientific American website entitled:
The essay asks the simple question: given the wars, the political and economic instability, the environmental damage and the potential climate consequences: just what will it take to wean America off oil? It’s an interesting piece, but IMHO, the answer – which the author skirts – is very, very simple. As I mentioned the other day, it’s just price. As one learns in Economics 101: if we make oil expensive then we will use less of it. But it’s not a message the US – or indeed anyone outside of an oil producing nation – wishes to hear. Only when oil is more expensive than we can currently imagine, will we begin to really invest in the alternatives.
I appreciate that some people will say that raising oil prices is economic suicide. I disagree. I acknowledge that it’s a difficult decision – but at some point in the future we will need to kick the oil habit – we will need to live differently. The sooner we acknowledge that, and chart a rational course from where we are, to where we want to be, the better for everyone.