I think that our planet has survived billions of years longer than we have, for a reason. It has adapted, and its undisturbed operation leads to survival. When we add chemical substances to the atmosphere, we are interrupting the survival path of the planet in a major way - and we must be very careful about that.
For the most part, we are best off if we reduce our impact on the planet so that it goes on its own, with very little effect from human action.
-Joe-

P.S. Mossback, chill. You're starting to sound too much like your previous personna. If you keep weirding out like he did, you won't last as long as he did.