In recent years, many people in the United States have migrated to the west and south. What is the main reason?

The main reasons are as follows: 1. The northeastern United States, where population is concentrated, has entered the late stage of urbanization, and urban diseases such as industrial pollution, crowded population and deterioration of living environment are plaguing people's lives.

Second, the western part of the United States is located in temperate maritime climate zone and Mediterranean climate zone, and the southern part is located in subtropical climate zone. Superior climatic conditions have become the pursuit of many people in the United States. The development of oil and gas resources in the south and the development of science and technology in the west have promoted the construction of infrastructure and the improvement of social security system. Therefore, in recent years, many people in the United States have migrated to the west and south.