Not a newbie question

[Saxon]

Climate Control is great for building up a planet's population, but is it worth it? Again, I am admitting my ignorance of math (I do have an MA in Law though...), but has anyone done the hard numbers on Climate Control. Sure, your population will grow faster and get you a higher production rate, but is it fast enough to justify the start up cost and the loss of production from some other facility not being built?

I am guessing that it is more valuable on large and huge planets and that it you either build it first, or don't bother at all.