[Tolik]

There is a fundamental Sci-Fi Trilogy (plus some) about conquering Mars by Kim Stanley Robinson

Red Mars

Green Mars

Blue Mars

The Martians

Its not an easy read. I finished only first two so far.

Agree or not, the author presents a fascinating saga with conflicting characters with different visions of how or whether at all to terraform Mars, economy of a far away colony, independence from Earth, and countless "hard sci-fi" ideas.

I think its not a matter of should we, but when it will become feasible. Its inevitable otherwise.

[green iguana]

a fundamental Sci-Fi Trilogy (plus some) about conquering Mars

If you didn't think the first two an easy read, then don't bother with Blue Mars. It is, by far, the worst of the three. By that I mean: The first was great, the second very good, the third mediocre.