Environmental Conservation

In The Park Service, the world is destroyed in several ways. First, the overpopulation of the world causes a depletion of natural resources including coal, rainforests, and fresh water. There is also a mass extinction of many animals whose environments were ruined by this depletion of natural resources. Starvation and fear cause uprisings in many countries with people ousting the government and taking over on their own. Finally, there is nuclear war that devastates most of the world.

After the nuclear war, there are few humans left in the world. The world is able to replenish itself, coming back to life as new and abundant as if humans had never lived. Scientists help with this replenishing by bringing back certain animals and plant life that were extinct but for which DNA samples still existed. The world is renewed, much the same as it was when...