Just think of all the round trips that you would need to make in order to build any kind of structures on Mars that would be large enough and viable enough in order to attempt to grow anything.
Do you realize the amount of cabbage needed to finance such a project. And I am not speaking about edible cabbage.
They are kind of slowly working towards such an idea with reusable rockets and such but you won't see an agricultural sustaining colony any time soon.
But Amberleaf, I have a question for you. You state that Mars has a 1% atmosphere. 1% of what? How is a 1% atmosphere going to keep anything from drifting off into space? You can't simply pollute a planet like Mars by simply heating it up. There is no atmosphere to hold the heat there. That is why it gets so cold there. There is no atmosphere there either to keep it from heating up during the Mars daytime either.
Although this whole idea makes me think of those closed dome like structures that were erected in our own desert Southwest in an attempt to survive in a harsh environment. Not only survive but be self efficient.
