Oil

Is the World too Dependent on Oil?
　　When we say the world is too dependent on oil, we are not exaggerating. One good starting point to prove this would be transportation. We know that cars, ships , locomotives and airplanes are all driven by oil. If the oil supply is cut off someday, the whole transportation system will be paralyzed.
　　Since the transportation system is the lifeline of a country’s economic activities, its paralysis would lead to the collapse of the economy, either industry or farming or daylife.
　　Furthermore, it is risky to base our world solely on oil. This is because oil reserves are diminishing. Besides , the supply is sometimes affected by political interests. For example, a few years age, when OPEC countries refused to export their oil, many other countries were thrown into chaos. Had the latter been less dependent on oil, the situation might have been completely different. It is certainly not nonsense to say that a world without oil would be a world without peace.
　　That is why we say the world is too dependent on oil.