When 7 Billion People, Occupy the Planet...

From National Geographic's "7 Billion" article. The January 2011 issue of National Geographic Magazine.

NUMBER 10

Countries can slow population growth by passing laws, such as China passing it's one child policy.

NUMBER 9

Birth control can reduce the number of children born, reducing the growth of population.

NUMBER 8

Imbalances in age groups within a country can economically affect that country.

NUMBER 7

Land that is used for farmland and producing food will run out. This land needs to be used efficiently.

NUMBER 6

Women that are educated will have less children.

NUMBER 5

The ideal number of children for a couple to have is two, both to replace them when they die.

NUMBER 4

There are phases that can be observed in the way population grows, and a country develops.

NUMBER 3

Wealthy countries use the most resources, but countries that are developing will rapidly begin to catch up, in terms of consumption.

NUMBER 2

The Human race will continue to have more and more offspring at an exponential rate.

NUMBER 1

Because of overpopulation, many people will not have enough resources to survive comfortably. Population will outgrow food production.