mars

1.     Security

• Problem:
• A large asteroid can hit earth. In past dinosaurs had been wiped out because a giant asteroid hit earth.
• Global warming is melting all our glaciers. Ocean waters are rising. This will probably flood our planet.
• Solar Flare can burn our shelter and food supply.
• Many such events can destroy human race.

• Solution:
• If we will have a secondary planet colonized, human race will survive.
• Basically if there are eggs in two baskets and one burns down, the other basket will be there to hatch the eggs.

  2. Resource exhaustion

• Problem:
• Human's population is rising. 
• Humans are absorbing many resources
• Running low on resource: food, water, oxygen and shelter.
• Humans need to have second planet for more resource. 

     Solution

• Mars has water, some air, and the sunlight. 
• We humans can go start small colonies soon.
• Then we can grow those colonies. It will take 100 or more years to grow colonies to significant size.
• If we start when we have exhausted our resources, we wouldn't have resources and time to colonize mars then, it would be too late.

 We should start soon.