After returning from rebirth, Zhou Wen activated the civilization tree system.
In the last life, due to drastic changes in the solar system, the orbit of the Blue Star changed, causing the entire Blue Star to enter the era of cold disaster. Zhou Wen, who did not get a place in the shelter, could only curl up in his basement and wait for death.
In this life, Zhou Wen relied on the system to build a huge nuclear energy empire below the earth's surface, but found that in the cold disaster era, the cold disaster was only the smallest disaster that humans encountered.
What to do?
It doesn't matter, since technology can't save the world, let me do it myself!
