[alexgmcm]

The issue is I don't think that scenario is realistic.

We don't have declining global CO2 emissions and there are no signs we will have that any time soon. In fact, annual CO2 emissions continue to increase at an almost exponential rate.

So first of all we'd have to decrease emissions and invent and deploy some CO2 extraction tech to help lower the current atmospheric CO2 concentration.

To me, it seems far more likely that if SRM was deployed many would just see it as a way to continue with business as usual without having to suffer the effects of global warming.