Impact

• Effects on people: The population of Tokyo for 2009 is 35 million people, but that includes the 23 prefectures associated with Tokyo.
• Effects on the environment: In the natural parks of Tokyo, the balance between protection and utilization of nature has been threatened due to problems caused by “making use of” nature.
• Effects on the economics: The Japanese have created "New Land" by filling in shallow wetlands with dirt and rubble.
• Effects on the government: By building up and down, the Japanese make effort use of limited city land.