Introduction to the Record of Surface Storms

On August 4, 3066, an unprecedented world war began. On December 5, 3070, the four-year technological war ended tragically. The number of living things on the devastated earth dropped by 89%. Among them, the number of humans was endangered. The surface was no longer suitable for biological survival due to the remnants of the war. On January 1, 3071, all humans moved underground, taking away a very small number of surviving organisms and plants, and survived underground for a hundred years. During this period, all surface expedition teams sent lost contact. What will the surface look like now?