Today, people around the world live in an increasingly worse environment. Environment problems are much heavier in the developing countries than in the developed. China is the largest country in population and Chinas economy has been developed quickly in recent years. Unfortunately, the economic development has cost too much in the environment.
China is one of the most polluted countries in the world.
Seven out of the worlds ten most polluted cities are in China. Ironically, Beijing, the capital of China, is one of them. The developed countries usually exert environmental protection plan through three main approaches. They are direct bans, emission caps and market incentives and disincentives. Direct bans are employed when direct thread to human health is very heavy.