Raymond is against it

NRC geoengineering report: Climate hacking is dangerous and barking mad.

Wow.  One of the most prominent climate scientists around,  Raymond T. Pierrehumbert, has come out swinging hard against even trying geoengineering. 

I think he is probably right - at least on the dubious prospects for ever deploying it in a permanent and useful way.  As to whether all forms should never be the subject of trial work - not so sure about that.