Recently,Guang Zhou's economy develops quickly.However,the development brings a lot of pollution to city.
　 First of all,although transportation is important for the economy.
yet it limits the road space.For example,large number of bikes owners and less than 15% citizen take buses.So that,it not only reduces the speed of translation,but brings air pollution.
　 Now we come to the water pollution.Water is important not only
for economy,but also for people's live.But economy developtment causes the water problem.Recently,the west part water factories are
polluted by chemical waste.
　 Above all,we can see that economy development causes a lot of pollution problem.