What is the impact of immigration to the space city on the earth?

After human beings moved into space, the earth has been transformed according to the role of natural forces for a long time to restore its vitality and good ecological environment. Hundreds of years later, the earth will go into battle without human intervention, and become more vibrant, with animals in groups, trees in shade, good weather, sunny weather and renewed Vientiane. If necessary, man can return to the earth.