The Cataclysm
The infamous Cataclysm occurred in 2078 due to the overexploitation and the nuclear war among countries. The nuclear weapons caused the protective sphere layers damaged which left the land unprotected from the solar storm and radiation. Most of the vegetation and water source disappeared in one month caused more conflicts among previous civilizations which leads to decline of populations. Without water source and vegetations, the ecosystems on earth were gone. The population was lower than 50000 six months after The Cataclysm. Survivors lived in caves and shelters for a long time till we developed a communication system through network.
water source
5%
vegetation
1%
sand land
95%