Terra-forming

Ok, you've heard about it in Sci-fi flicks: take a "dead" planet and terra form it into some lush paradise.

If you had the means and opportunity to terra form a dead planet, no worries about cost or time; how would you do it? What would it look like?

Would you even do it?

Think about it. Humans began in a lush paradise and now we are terra forming our planet but in a negative way.

Most humans would rather look at this:

rather than say this:

so if we humans LOVE the thought of "paradise", why do we do so much damage to the one we've got?