There is no way to justify Geo-Engineering if we consider the whole mathematical truth about Energy. The truth is that the Earth may well have created Geo-Engineering effects, but those effects were destructive, obstructing the energy of the sun from creating, setting back the progress of creation of life.
Why the hell would we voluntarily replicate any part of that?
Well actually we know, for profit, nothing more.
I also replied to the source story, you might be interested to see.