| The wholehearted public embrace of geoengineering advocated by Benford, Michaelson and others in the nineties has not happened. |
| Some rational people open to geoengineering are worried by the fact that sulfates can't address ocean acidification. |
| The risk of unintended detrimental effects is inherently high because most geoengineering proposals are planetary in scale. |
| Nevertheless, in the mid-nineties, valiant attempts were made to give geoengineering a good name. |
| Our knowledge of climate is not yet sufficiently advanced to undertake real planetary geoengineering. |
| By relying on technological innovation and development, geoengineering would increase the role of private actors relative to that of government. |
