I know what you are talking about. Last spring, I was taking an advanced class with my psy teacher, and one of the exercises was forecasting. Of the six people in the class, 4 of us saw some major shifts in American culture, in part due to the changes that need to be made in our mobile lifestyles. I didn't see it as a major catastrophe, b/c most of the world has been living with very high fuel prices (or little or no access to gas-powered vehicles at all) for a very long time. But yes, it will be a big change for us, especially those who live in areas where a car is essential, or at least an essential part of personal identity (sorry Texans and my fellow Californians!)
I hate to say this, but I could see this and I'm not psychic at all.