Distant Green Leaves

A snowy mountain collapse buried an elementary school near the North Pole. Seven thousand years later, the Earthlings' high technology restored three children to life. They see that the ultra-modern Earth's technology is incredibly advanced, while the ecological environment has been greatly damaged. After 7,000 years, the "e;Ancients"e; and the "e;Moderns"e; meet, and there are too many heart-to-heart conflicts between them about life and survival, love and friendship, while the intervention and plan of the alien robot in the constellation of Scorpion make the story even more confusing. The earth is spinning and the world is changing. At that time, will the earth still be as green as it is now, with green trees and birds singing happily?