Comment There's only one solution (Score 2) 114
1) Produce an excess of energy using methods that do not release CO2
2) Use the excess energy to sequester atmospheric CO2
3) Repeat until atmospheric CO2 levels are at pre-industrial levels
There are no shortcuts. If you skip step one and attempt step two, you have a net increase in CO2 release. If you avoid this whole plan by adjusting insolation, you get a break on the temperature while we inevitably ignore the continually increasing CO2 and all the other issues it brings, and you make us dependent on maintaining the new artificial insolation management system - and when it one day fails, there will be that much more CO2 to deal with.
You may also want to consider that with rising CO2 levels comes cognitive impairment. It won't be much of an issue outside with the numbers we're talking about, but indoor air (which we spend an awful lot of time breathing) only reduces CO2 levels by mixing with outdoor air. The indoor CO2 levels are always higher, and that will get worse as outdoor levels rise.