Artificially induce life on Mars?

[Unity+]

There has been much research done into the concept of reopening life to Mars by the use of increased carbon in the atmosphere to produce heat and then using the H2 on the surface to produce water on the surface. My question relates to the long-term situation.

 

Currently, Mars is a red, is not an inhabited planet due to the environment that exists(as we know of). Question is, if the red planet is in its current stated, how did it get it's current condition and will the cause of its current environment affect how easy it will be to keep an artificially induced environment?

[Moontanman]

I've heard of ideas to direct comets toward Mars to this end...

Edited August 17, 2014 by Moontanman