Now the environmental pollution and resource consumption of the earth are so serious. How long before the earth is habitable for human beings? Can we immigrate to another planet before the earth colla

Now the environmental pollution and resource consumption of the earth are so serious. How long before the earth is habitable for human beings? Can we immigrate to another planet before the earth collapses? Colonizing aliens is still a relatively distant era. Trapped by the theory of relativity and the scale of the universe, there is no way to achieve large-scale alien migration. But it is possible to build a space city like the International Space Station. The life of the earth depends on the sun. There are still billions of years. Once the sun dies and becomes a white dwarf, the earth will almost come to an end. Compared with 100 billion years old universe, we human beings have been civilized for thousands of years. Small, but I agree with your curiosity. It is considered that the improvement of a person's self-cultivation is the characteristic that distinguishes him from other species on the earth.