Overpopulation
Overpopulation is when the population is too large to be supported by the environment. In worst case the whole population becomes unstable and develops to the verge of extinction.
The population on Earth is steadily growing, and Earth is already showing signs of overpopulation. Colonization of Mars may reduce the problems of overpopulation on Earth.
However, overpopulation is also a threat to a colony if the production and consumption is increasingly out of balance. A population does not necessarily have to grow, but if it does, the available vital resources must be considered. Knowing the resource limitation, there must be a limitation in the population's growth.
Limiting a population's growth
This paragraph lists a number of principles, regardless of the moral aspects. Some are already performed in human society, others are common natural processes in natural animal populations.
- Lawful birth control
- Penalty for surplus offspring
- Sterilization
- Natural limitation
- Limited food
- Predators
How a Martian colony can help solving Earth's overpopulation problem
Some people might think, we simply bring parts of the Earth's population to Mars, thus reducing the number of persons living from Earth's resources. Unfortunately, this does not work out, because the transportation effort and the kick-off support for the Martian colony consumes far more terrestrial resources than the resettled part of the population would ever use for a regular life on Earth.
But salvation could come from the economical principles of such a colony, which are fundamentally different from the terrestrial. The Martian colony is bound to complete recycling and live with extremely limited energy, and all this must function in a local site. Special technology needs to be introduced to meet these requirements, and the experience with this technology on Mars can be used by communities on Earth, as well. This way, the officials on Earth will hopefully gain an environmental awareness and learn how to live in a balanced way on it's own resources.