Under pressure from drought, nomads in Kenya have invaded the most important wildlife conservancy.

In an overpopulated world, it may be possible in theory for people to coexist with wild areas—as long as all goes well. But we can't suppose expect everything will go well all the time. Overpopulating humanity will wipe out natural ecosystems, as the last step of trying to survive—a few years before masses of humans begin dying.

To avoid this future requires we do all we can to encourage use of birth control and reduction of birth rate.