[kaushalvivek]

Rather than venting, the civilisation would probably convert CO2 to a different compound, on the same planet.

[saiya-jin]

yeah ie for us O2 would be nice, I mean really nice... anybody did calculation how warm would Venus be if we somehow broke that runaway greenhouse effect? I can imagine poles may be quite hospitable temperature wise.

[igrekel]

We have to do something about the pressure as well.