We have to change our way of living totally. Big industries or even whole countries would be ruined, for example oil refinery or Iran. Mainly poor countries, which produce oil, would be ruined. We are afraid, it woud be a great mess, because the oil wouldn’t run out in all countries at the same time, so it’s possible that there would be an „Oil War“. Many things wouldn’t work without oil and the sciences had really to work hard in order to find alternatives to oil.